Bridge Rectifier Wiki - User contributions [en-gb]

Directors

2019-05-24T13:25:26Z

Paul123: Deleted Paul Dale from table

Details of the current directors can be found below.

{| class="wikitable"
|-
! scope="col"| Name
! scope="col"| Forum handle
! scope="col"| Start date
|-
| Pat Devine
|
| ''15-Apr-18''
|-
|-

|-
|-
| Giles Edwards
| giles
| ''01-Apr-17''
|-
|-
| Guy Philip Lymer
| RoboGuy
| ''Founding''
|-
|-
| Martin McGarrigle
| Martin
| ''Founding''
|-
|-
| Steven Griffiths
| Picus
| ''15-Apr-18''
|-
|-
|}

Rules / Code of Conduct

2019-01-20T21:16:45Z

Paul123: Created page with " == Code Of Conduct == 1. BRIDGE RECTIFIER Hackerspace is an inclusive organisation where everyone is welcome. We want everyone to have an enjoyable and fulfilling experie..."

== Code Of Conduct ==

1. BRIDGE RECTIFIER Hackerspace is an inclusive organisation where everyone is welcome. We want everyone to have an enjoyable and fulfilling experience. Everyone is expected to be friendly and respectful towards each other. This applies to all of BRIDGE RECTIFIER's physical meetings, events and the like, as well as all online communication channels and virtual activities. Non-members violating this code of conduct may be asked to leave immediately. Members violating this code of conduct may be subject to disciplinary proceedings including termination of membership. Everyone at BRIDGE RECTIFIER, members or otherwise, are obliged to follow this code of conduct.

2. Everyone is welcome regardless of age, ability, race, ethnicity, gender, gender identity and expression, sexuality, marital status, family status or religion.

3. We expect everyone to maintain an environment of mutual respect, tolerance, encouragement and friendliness. Be nice to each other. Do not insult or act in a derogatory manner towards anyone else.

4. Speaking to others in a rude or aggressive manner is not acceptable. Remember that sexist, racist and other exclusionary or enabling jokes can be offensive to those around you. Excessive swearing and offensive jokes are not appropriate.

5. What you say and do should not affect others enjoyment of BRIDGE RECTIFIER.

6. Harassment is not allowed.
Harassment includes (but is not limited to) offensive or unwanted comments about gender, sexual orientation, disability, physical appearance, body size, ethnicity or religion, pornographic pictures in public places (including slides and profile/avatar pictures), deliberate intimidation, stalking, unwanted photographs or recording, sustained disruption of talks, inappropriate physical contact and unwelcome sexual attention.

7. You are expected to deal with disagreements in a friendly and respectful manner.

8. BRIDGE RECTIFIER has a clean as you go policy. You are expected to leave any work area, bench, desk, room etc. clean and tidy for the next person to use. Remember BRIDGE RECTIFIER is a shared space. Leave the place as you would like to find it. Put tools, equipment and your property back in it’s place when you are finished.

9. Report broken or damaged items to its owner or the directors. Stuff breaks through regular wear and tear, we just want to replace it quickly!

10. If you bring visitors onto the premises, note that they may not clean up after themselves. As their host, you are responsible for cleaning up after them.

11. Treat all property and equipment in the space with the same respect that you would treat your own property. Note however that your property at BRIDGE RECTIFIER is there entirely at your own risk.
Do not use other members property without their permission.

12. If you are unsure as to ownership of something or whether to dispose of something, ask first.

Main Page

2019-01-20T21:11:10Z

Paul123: /* Organisation */

Welcome to the Bridge Rectifier wiki.

Here you can find more detailed information about the hackerspace, available facilities, group projects, events and workshops etc.

''Please note that links in red are pages which have yet to be written.''

== The space ==

The Bridge Rectifier space is located at Unit 1B, Hebble End Works.

* [[HebbleEndPhotos|Photos]]
* [[Tools and equipment]]
* [[Network]]

== Public events ==

Details of regular public events held at the space.

* [[Open Evenings]]
* [[All Things Open]]
* [[Laser Cutter Training 11th August 2018]]

We also host other regular meetings, but these are limited to members.

== Groups ==

Member groups host meetings and may have their own equipment and projects at the space.

* [[Amateur radio]]
* [[Art & Technology]]
* [[Electronics]]

Proposals for new groups are welcomed.

== Projects ==

Details of current projects.

* [[Cubicle for dirty tools]]
* [[Access system]]
* [[Food Computer]]
* [[Flood monitoring]]
* [[Laser-cutting Inspiration]]
* [[Mass spectrometer]]
* [[The Things Network]]
* [[3D Printer]]
* [[Water Feature for Arts Festival]]

== Organisation ==

Bridge Rectifier is a co-operative and a non-profit company limited by guarantee.

* [[Articles]]
* [[Directors]]
* [[Membership]]
* [[Rules / Code of Conduct]]

=== Official meetings ===

==== Upcoming ====

* 2018 AGM - October 2018. Date to be set.
==== Past ====

* [[2017_Annual_General_Meeting|AGM at Hebble End Mill, 17:00 Hrs, 14th April 2018]] (click for agenda!)
* [[Media:Bridge Rectifier AGM Minutes April 2018.pdf|Click here for minutes of 2017 AGM, (held April 2018)]]
* 2016 Annual General Meeting (Saturday 19th November 2016)
** [[2016 Annual General Meeting|Planning]]
** [[2016_Annual_General_Meeting_Minutes|Minutes]]

=== Elections ===

==== Upcoming ====

==== Past ====
* [[2018-2019_Board_Election|2018-2019 Board]]

Laser Cutter Training 11th August 2018

2018-07-08T15:44:14Z

Paul123: Created page with "Prospective attendees: richardmusson@hotmail.com"

Prospective attendees:
richardmusson@hotmail.com

Main Page

2018-07-08T15:42:09Z

Paul123:

Welcome to the Bridge Rectifier wiki.

Here you can find more detailed information about the hackerspace, available facilities, group projects, events and workshops etc.

''Please note that links in red are pages which have yet to be written.''

== The space ==

The Bridge Rectifier space is located at Unit 1B, Hebble End Works.

* [[HebbleEndPhotos|Photos]]
* [[Tools and equipment]]
* [[Network]]

== Public events ==

Details of regular public events held at the space.

* [[Open Evenings]]
* [[All Things Open]]
* [[Laser Cutter Training 11th August 2018]]

We also host other regular meetings, but these are limited to members.

== Groups ==

Member groups host meetings and may have their own equipment and projects at the space.

* [[Amateur radio]]
* [[Art & Technology]]
* [[Electronics]]

Proposals for new groups are welcomed.

== Projects ==

Details of current projects.

* [[Cubicle for dirty tools]]
* [[Access system]]
* [[Food Computer]]
* [[Flood monitoring]]
* [[Laser-cutting Inspiration]]
* [[Mass spectrometer]]
* [[The Things Network]]
* [[3D Printer]]
* [[Water Feature for Arts Festival]]

== Organisation ==

Bridge Rectifier is a co-operative and a non-profit company limited by guarantee.

* [[Articles]]
* [[Directors]]
* [[Membership]]
* [[Rules]]

=== Official meetings ===

==== Upcoming ====

* 2018 AGM - October 2018. Date to be set.
==== Past ====

* [[2017_Annual_General_Meeting|AGM at Hebble End Mill, 17:00 Hrs, 14th April 2018]] (click for agenda!)
* [[Media:Bridge Rectifier AGM Minutes April 2018.pdf|Click here for minutes of 2017 AGM, (held April 2018)]]
* 2016 Annual General Meeting (Saturday 19th November 2016)
** [[2016 Annual General Meeting|Planning]]
** [[2016_Annual_General_Meeting_Minutes|Minutes]]

=== Elections ===

==== Upcoming ====

==== Past ====
* [[2018-2019_Board_Election|2018-2019 Board]]

Cubicle for dirty tools

2018-05-02T21:48:11Z

Paul123: Created page with "* Giles, Pat, Neil, Richard, Paul, Guy were discussing this on Wednesday 2nd May, 2018. * We're not yet financially ready to rent new space. * Delicate equipment (3D printer,..."

* Giles, Pat, Neil, Richard, Paul, Guy were discussing this on Wednesday 2nd May, 2018.
* We're not yet financially ready to rent new space.
* Delicate equipment (3D printer, laser cutter) needs to be kept free of dust and chippings, from drills & lathes etc.
* We agreed to experimentally try a "cubicle" partitioned off in front of the emergency-exit door.
* The floor area will be 152 x 285 cm. Poly sheeting will be studded to wall, floor, beams.
* A vacuum cleaner with attachment to the router is expected to keep most of the large debris contained.
* A dustpan and brush will be used for the remainder.
* The entry to the cubicle will be the existing emergency-exit door.
* To satisfy emergency exit needs, a knife and sign can be provided.
* A handle / lock will need to be put into the corridor side of the door, so to still allow unhindered emergency exits.
* Pat will look to see if he has some sheeting.
* If it contains the dust sufficiently, then it can stay.
* If it doesn't, a solution will have to be re-thought.

Main Page

2018-05-02T21:22:05Z

Paul123: /* Projects */

Welcome to the Bridge Rectifier wiki.

Here you can find more detailed information about the hackerspace, available facilities, group projects, events and workshops etc.

''Please note that links in red are pages which have yet to be written.''

== The space ==

The Bridge Rectifier space is located at Unit 1B, Hebble End Works.

* [[HebbleEndPhotos|Photos]]
* [[Tools and equipment]]
* [[Network]]

== Public events ==

Details of regular public events held at the space.

* [[Open Evenings]]
* [[All Things Open]]

We also host other regular meetings, but these are limited to members.

== Groups ==

Member groups host meetings and may have their own equipment and projects at the space.

* [[Amateur radio]]
* [[Art & Technology]]
* [[Electronics]]

Proposals for new groups are welcomed.

== Projects ==

Details of current projects.

* [[Cubicle for dirty tools]]
* [[Access system]]
* [[Food Computer]]
* [[Flood monitoring]]
* [[Laser-cutting Inspiration]]
* [[Mass spectrometer]]
* [[The Things Network]]
* [[3D Printer]]
* [[Water Feature for Arts Festival]]

== Organisation ==

Bridge Rectifier is a co-operative and a non-profit company limited by guarantee.

* [[Articles]]
* [[Directors]]
* [[Membership]]
* [[Rules]]

=== Official meetings ===

==== Upcoming ====

* 2018 AGM - October 2018. Date to be set.
==== Past ====

* [[2017_Annual_General_Meeting|AGM at Hebble End Mill, 17:00 Hrs, 14th April 2018]] (click for agenda!)
* [[Media:Bridge Rectifier AGM Minutes April 2018.pdf|Click here for minutes of 2017 AGM, (held April 2018)]]
* 2016 Annual General Meeting (Saturday 19th November 2016)
** [[2016 Annual General Meeting|Planning]]
** [[2016_Annual_General_Meeting_Minutes|Minutes]]

=== Elections ===

==== Upcoming ====

==== Past ====
* [[2018-2019_Board_Election|2018-2019 Board]]

File:Bridge Rectifier AGM Minutes April 2018.pdf

2018-04-17T20:48:50Z

Paul123: Paul123 uploaded a new version of File:Bridge Rectifier AGM Minutes April 2018.pdf

Directors

2018-04-17T20:45:01Z

Paul123:

Details of the current directors can be found below.

{| class="wikitable"
|-
! scope="col"| Name
! scope="col"| Forum handle
! scope="col"| Start date
|-
| Pat Devine
|
| ''15-Apr-18''
|-
|-
| Paul Dale
| paul123
| ''01-Apr-17''
|-
|-
| Giles Edwards
| giles
| ''01-Apr-17''
|-
|-
| Guy Philip Lymer
| RoboGuy
| ''Founding''
|-
|-
| Martin McGarrigle
| Martin
| ''Founding''
|-
|-
| Steven Griffiths
| Picus
| ''15-Apr-18''
|-
|-
|}

Directors

2018-04-17T20:38:15Z

Paul123:

Details of the current directors can be found below.

{| class="wikitable"
|-
! scope="col"| Name
! scope="col"| Forum handle
! scope="col"| Start date
|-
| Pat Devine
|
| ''15-Apr-18''
|-
|-
| Paul Dale
| paul123
| ''01-Apr-17''
|-
|-
| Giles Edwards
| giles
| ''01-Apr-17''
|-
|-
| Guy Philip Lymer
| RoboGuy
| ''Founding''
|-
|-
| Martin McGarrigle
| Martin
| ''Founding''
|-
|-
| Steven Griffiths
|
| ''15-Apr-18''
|-
|-
|}

Main Page

2018-04-17T20:20:34Z

Paul123: 2017 AGM and Elections

Welcome to the Bridge Rectifier wiki.

Here you can find more detailed information about the hackerspace, available facilities, group projects, events and workshops etc.

''Please note that links in red are pages which have yet to be written.''

== The space ==

The Bridge Rectifier space is located at Unit 1B, Hebble End Works.

* [[HebbleEndPhotos|Photos]]
* [[Tools and equipment]]
* [[Network]]

== Public events ==

Details of regular public events held at the space.

* [[Open Evenings]]
* [[All Things Open]]

We also host other regular meetings, but these are limited to members.

== Groups ==

Member groups host meetings and may have their own equipment and projects at the space.

* [[Amateur radio]]
* [[Art & Technology]]
* [[Electronics]]

Proposals for new groups are welcomed.

== Projects ==

Details of current projects.

* [[Access system]]
* [[Food Computer]]
* [[Flood monitoring]]
* [[Laser-cutting Inspiration]]
* [[Mass spectrometer]]
* [[The Things Network]]
* [[3D Printer]]
* [[Water Feature for Arts Festival]]

== Organisation ==

Bridge Rectifier is a co-operative and a non-profit company limited by guarantee.

* [[Articles]]
* [[Directors]]
* [[Membership]]
* [[Rules]]

=== Official meetings ===

==== Upcoming ====

* 2018 AGM - October 2018. Date to be set.
==== Past ====

* [[2017_Annual_General_Meeting|AGM at Hebble End Mill, 17:00 Hrs, 14th April 2018]] (click for agenda!)
* [[Media:Bridge Rectifier AGM Minutes April 2018.pdf|Click here for minutes of 2017 AGM, (held April 2018)]]
* 2016 Annual General Meeting (Saturday 19th November 2016)
** [[2016 Annual General Meeting|Planning]]
** [[2016_Annual_General_Meeting_Minutes|Minutes]]

=== Elections ===

==== Upcoming ====

==== Past ====
* [[2018-2019_Board_Election|2018-2019 Board]]

File:Bridge Rectifier AGM Minutes April 2018.pdf

2018-04-17T20:16:24Z

Paul123:

Open Evenings

2017-10-03T12:02:52Z

Paul123: /* Previous */

Open evenings are hosted at the space on most Wednesdays from 19:00-21:00, with those potentially interested in membership invited to come along to find out more about Bridge Rectifier and to meet members.

If you are considering coming along it advised to check the rota (see below) and/or post to [http://discourse.bridgerectifier.org.uk/t/wednesday-evening-is-open-evening/ the forum], just to confirm that the space will be open.

It's also worth posting to [http://discourse.bridgerectifier.org.uk/t/wednesday-evening-is-open-evening/ the forum] prior to attending if you have a specific interest. This helps ensure someone with roughly aligned interests is there. We'd hate to waste your time.

''There is no charge for attending, but after having attended two open evenings membership is required.''

== Format ==

There is no format as such and it tends to be simply a social evening, although members may be working on projects.

A group of us usually head along to a local pub at around 21:00.

== Rota ==

Who is down for opening up.

=== Upcoming ===

* 27th September: Guy (roboguy)
* 4th October: Andrew (9600)

=== Previous ===

Previous dates noted for posterity/fairness. Remember to update this list when updating upcoming.

* 18th October: Paul D (paul123)
* 20th September: Emma (emma)
* 13th September: Emma (emma)
* 30th August: Guy (roboguy)
* 28th June: Andrew (9600)
* 7th June: Guy (roboguy)
* 31st May: Giles (Giles)
* 24th May: Guy (roboguy)
* 17th May: Guy (roboguy)
* 10th May: Giles (Giles)
* 3rd May: Andrew (9600)
* 26th April: Guy (roboguy)
* 19th April: Guy (roboguy)
* 12th April: Paul D (Paul123)
* 1st March: Andrew B (9600)
* 22nd February: Guy (RoboGuy)
* 15th February: Paul D (paul123).
* 8th February: Paul D (paul123).
* 1st February: Andrew B(9600)
* 25th January: Guy (RoboGuy)
* 18th January: Guy (RoboGuy)
* 11th January: Paul D (paul123)
* 4th January: Andrew B (9600)
* 21st December: Guy (RoboGuy)
* 14th December: Andrew B (9600)
* 7th December: Andrew B (9600)
* 30th November: Paul D (paul123)
* 23rd November: Andrew B (9600)

Water Feature for Arts Festival

2017-05-14T20:26:42Z

Paul123:

For the 2017 Hebden Bridge Arts Festival, we'll decorate a tree with some Bridge Rectifier motifs, and a water pump.
I'll add a first draft plan, and some photos of the tree. The tree is a willow next to a footbridge on Old Gate:

11-13 Old Gate
Hebden Bridge HX7 6EN
53.742044, -2.013627

[[File:water_feature_plan_1.jpg]]
[[File:Pump_and_solar_panel_may_hang_against_this_wall.jpg]]
[[File:View_from_bridge.jpg]]
[[File:View_of_tree.jpg]]

File:View of tree.jpg

2017-05-14T20:25:17Z

Paul123:

Water Feature for Arts Festival

2017-05-14T20:22:11Z

Paul123:

File:Pump and solar panel may hang against this wall.jpg

2017-05-14T20:19:39Z

Paul123:

File:View from bridge.jpg

2017-05-14T20:16:05Z

Paul123:

Water Feature for Arts Festival

2017-05-14T14:58:43Z

Paul123:

File:Water feature plan 1.jpg

2017-05-14T14:37:00Z

Paul123:

Water Feature for Arts Festival

2017-05-14T14:34:20Z

Paul123:

For the 2017 Hebden Bridge Arts Festival, we'll decorate a tree with some Bridge Rectifier motifs, and a water pump.

[[File:water_feature_plan_1.jpg]]

Water Feature for Arts Festival

2017-05-14T14:28:00Z

Paul123: Created page with "For the 2017 Hebden Bridge Arts Festival, we'll decorate a tree with some Bridge Rectifier motifs, and a water pump. File:Example.jpg"

For the 2017 Hebden Bridge Arts Festival, we'll decorate a tree with some Bridge Rectifier motifs, and a water pump.

[[File:Example.jpg]]

Main Page

2017-05-14T14:26:34Z

Paul123: /* Projects */

Welcome to the Bridge Rectifier wiki.

Here you can find more detailed information about the hackerspace, available facilities, group projects, events and workshops etc.

''Please note that links in red are pages which have yet to be written.''

== The space ==

The Bridge Rectifier space is located at Unit 1B, Hebble End Works.

* [[HebbleEndPhotos|Photos]]
* [[Tools and equipment]]
* [[Network]]

== Public events ==

Details of regular public events held at the space.

* [[Open Evenings]]
* [[All Things Open]]

We also host other regular meetings, but these are limited to members.

== Groups ==

Member groups host meetings and may have their own equipment and projects at the space.

* [[Amateur radio]]
* [[Art & Technology]]
* [[Electronics]]

Proposals for new groups are welcomed.

== Projects ==

Details of current projects.

* [[Access system]]
* [[Food Computer]]
* [[Flood monitoring]]
* [[Laser-cutting Inspiration]]
* [[Mass spectrometer]]
* [[The Things Network]]
* [[3D Printer]]
* [[Water Feature for Arts Festival]]

== Organisation ==

Bridge Rectifier is a co-operative and a non-profit company limited by guarantee.

* [[Articles]]
* [[Directors]]
* [[Membership]]
* [[Rules]]

=== Official meetings ===

==== Upcoming ====

* ''TBC - financial year ends 31-Jul-17''
* AGM could be September?

==== Past ====

* 2016 Annual General Meeting (Saturday 19th November 2016)
** [[2016 Annual General Meeting|Planning]]
** [[2016_Annual_General_Meeting_Minutes|Minutes]]

=== Elections ===

==== Upcoming ====

* [[2017-2018_Board_Election|2017-2018 Board]]

Open Evenings

2017-04-09T19:44:34Z

Paul123: /* Upcoming */

Open Evenings

2017-04-09T19:42:47Z

Paul123: /* Previous */

Open Evenings

2017-02-06T19:19:16Z

Paul123: /* Upcoming */

RepRap Work

2017-01-03T21:59:49Z

Paul123:

Rep Rap 3D Printer Work, Paul Dale, 2/1/17.

I did some maintenance to the printer over the past couple of weeks.
Test print BEFORE changes:

[[File:boat_r.png]]

Here's a list of the changes I made:

- Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubuntu Mint, which does work. I suspect it's a Python thing, but couldn't fix it.

- Bed thermistor open circuit, repaired. Bed LED resistor value increased to 2K2R.

- Extruder thermistor sometimes shorting. I've pulled the insulation closer to the glass bead which seems to have fixed it for now. Still needs better Kapton tape applying to hold in place.

Before (thermistor removed for clarity) / After:

[[File:Thermistor before r.png]] [[File:Thermistor after r.png]]

- Nozzle slightly blocked, (probably me keep getting the wrong bed-height, so covering the nozzle in filament). I removed the nozzle and used a blow-torch to burn off, then poked some soft copper wire through.

[[File:nozzle_hole_r.png]]

- Extruder feed-bolt fouled with filament pieces. I scraped out most of this. I loosened the hinge of the part that squeezes filament against the feed-bolt too.

- Some linear bearings are rusty and rough. They've been lubricated all round, but the X-axis are still poor, maybe could be replaced if we decide it's worth it.

[[File:rusty_bearings_r.png]]

- Z axis captive-nut holders broken. I've added washers but at some stage they may need re-printing.

[[File:broken_z-nut_holder_r.png]]

- Z-axis couplings weren't holding the motor spindles. Instead they were only clamping the transparent tubing. The couplings have been re-fitted to clamp the motor spindles.

Before / After:

[[File:z-spindle_before_r.png]] [[File:z-spindle_after_r.png]]

- Bed-height adjusters changed to spring-loaded type.

[[File:spring_loaded_bed_r.png]]

* I'll take this opportunity to post a picture of the correct PC connections, for future reference:
(Note connection to PC USB port shown on left of PCB can fit two ways. Image shows correct way.)

[[File:PCBs_Connectors_r.png]]

To be done (Hardware):

- Kapton tape to hold extruder thermistor in.

- Tie-wrap x-axis bearings to carriage.

- Dress remaining loose cables.

- Raise bed (maybe 0.5mm to 1.0mm).

- The connection between the wooden bed and the transparent-plastic bed is spring-loaded, and / or lots of washers are used. Maybe we can make this a solid, fixed connection.

- Heated-bed PCB corner broken. It's "ok" today but may need fixing in future.

- I've been using a little hair-spray on the bed to help the first layer stick. I've read some people use some type of tape. To be investigated.

- Z-axis (electronics end) threaded rod and smooth rod aren't perfectly parallel to each other. This might be related to how the motor is screwed to the frame. Both Z-motors are mounted slightly loose, maybe intentionally. I suspect one side of the motor could be packed to make the rods parallel.

To be done (Software)

- Install Slicer SW on PC.

- Various Calibrations:
http://richrap.blogspot.co.uk/2012/01/slic3r-is-nicer-part-1-settings-and.html?m=1

- Other settings in Slic3r:
Nozzle diameter.
Z Offset.
Filament diameter, (white stuff already in the printer measures 2.8mm dia.
Filament material.
Nozzle temperature.
Layer height.
Retraction Length, Lift and Speed.
Print speed (7 types):
Perimeters, Small Perimeters, Infill, Solid Infill, Bridges, Travel, Bottom Layer Speed Ratio.

- G-Codes for Start and stop.

- Atmega:
Since the firmware on the Atmega MCU hasn't changed, motor calibrations aren't expected to be required. A 20mm test box was printed and measured 20.4mm x 20.1mm.

Open Evenings

2017-01-03T21:53:47Z

Paul123: /* Upcoming */

RepRap Work

2017-01-03T21:32:11Z

Paul123:

Rep Rap 3D Printer Work, Paul Dale, 2/1/17.

I did some maintenance to the printer over the past couple of weeks.
Test print BEFORE changes:

[[File:boat_r.png]]

Here's a list of the changes I made:

- Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubuntu Mint, which does work. I suspect it's a Python thing, but couldn't fix it.

- Bed thermistor open circuit, repaired. Bed LED resistor value increased to 2K2R.

- Extruder thermistor sometimes shorting. I've pulled the insulation closer to the glass bead which seems to have fixed it for now. Still needs better Kapton tape applying to hold in place.

Before (thermistor removed for clarity) / After:

[[File:Thermistor before r.png]] [[File:Thermistor after r.png]]

- Nozzle slightly blocked, (probably me keep getting the wrong height, so covering the nozzle in filament). I removed the nozzle and used a blow-torch to burn off, then poked some soft copper wire through.

[[File:nozzle_hole_r.png]]

- Extruder feed-bolt fouled with filament pieces. I scraped out most of this. I loosened the hinge of the part that squeezes filament against the feed-bolt too.

- Some linear bearings are rusty and rough. They've been lubricated all round, but the X-axis are still poor, maybe could be replaced if we decide it's worth it.

[[File:rusty_bearings_r.png]]

- Z axis captive-nut holders broken. I've added washers but at some stage they may need re-printing.

[[File:broken_z-nut_holder_r.png]]

- Z-axis couplings weren't holding the motor spindles. Instead they were only clamping the transparent tubing. The couplings have been re-fitted to clamp the motor spindles.

Before / After:

[[File:z-spindle_before_r.png]] [[File:z-spindle_after_r.png]]

- Bed-height adjusters changed to spring-loaded type.

[[File:spring_loaded_bed_r.png]]

* I'll take this opportunity to post a picture of the correct PC connections, for future reference:
(Note connection to PC USB port shown on left of PCB can fit two ways. Image shows correct way.)

[[File:PCBs_Connectors_r.png]]

To be done (Hardware):

- Kapton tape to hold extruder thermistor in.

- Tie-wrap x-axis bearings to carriage.

- Dress remaining loose cables.

- Raise bed (maybe 0.5mm to 1.0mm).

- The connection between the wooden bed and the transparent-plastic bed is spring-loaded, and / or lots of washers are used. Maybe we can make this a solid, fixed connection.

- Heated-bed PCB corner broken. It's "ok" today but may need fixing in future.

- I've been using a little hair-spray on the bed to help the first layer stick. I've read some people use some type of tape. To be investigated.

- Z-axis (electronics end) threaded rod and smooth rod aren't perfectly parallel to each other. This might be related to how the motor is screwed to the frame. Both Z-motors are mounted slightly loose, maybe intentionally. I suspect one side of the motor could be packed to make the rods parallel.

To be done (Software)

- Install Slicer SW on PC.

- Various Calibrations:
http://richrap.blogspot.co.uk/2012/01/slic3r-is-nicer-part-1-settings-and.html?m=1

- Other settings in Slic3r:
Nozzle diameter.
Z Offset.
Filament diameter, (white stuff already in the printer measures 2.8mm dia.
Filament material.
Nozzle temperature.
Layer height.
Retraction Length, Lift and Speed.
Print speed (7 types):
Perimeters, Small Perimeters, Infill, Solid Infill, Bridges, Travel, Bottom Layer Speed Ratio.

- G-Codes for Start and stop.

- Atmega:
Since the firmware on the Atmega MCU hasn't changed, motor calibrations aren't expected to be required. A 20mm test box was printed and measured 20.4mm x 20.1mm.

RepRap Work

2017-01-03T21:26:37Z

Paul123:

Rep Rap 3D Printer Work, Paul Dale, 2/1/17.

- Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubuntu Mint, which does work. I suspect it's a Python thing, but couldn't fix it.

- Bed thermistor open circuit, repaired. Bed LED resistor value increased to 2K2R.

- Extruder thermistor sometimes shorting. I've pulled the insulation closer to the glass bead which seems to have fixed it for now. Still needs better Kapton tape applying to hold in place.

Before (thermistor removed for clarity) / After:

[[File:Thermistor before r.png]] [[File:Thermistor after r.png]]

- Nozzle slightly blocked, (probably me keep getting the wrong height, so covering the nozzle in filament). I removed the nozzle and used a blow-torch to burn off, then poked some soft copper wire through.

[[File:nozzle_hole_r.png]]

- Extruder feed-bolt fouled with filament pieces. I scraped out most of this. I loosened the hinge of the part that squeezes filament against the feed-bolt too.

- Some linear bearings are rusty and rough. They've been lubricated all round, but the X-axis are still poor, maybe could be replaced if we decide it's worth it.

[[File:rusty_bearings_r.png]]

- Z axis captive-nut holders broken. I've added washers but at some stage they may need re-printing.

[[File:broken_z-nut_holder_r.png]]

- Z-axis couplings weren't holding the motor spindles. Instead they were only clamping the transparent tubing. The couplings have been re-fitted to clamp the motor spindles.

Before / After:

[[File:z-spindle_before_r.png]] [[File:z-spindle_after_r.png]]

- Bed-height adjusters changed to spring-loaded type.

[[File:spring_loaded_bed_r.png]]

* I'll take this opportunity to post a picture of the correct PC connections, for future reference:
(Note connection to PC USB port shown on left of PCB can fit two ways. Image shows correct way.)

[[File:PCBs_Connectors_r.png]]

To be done (Hardware):

- Kapton tape to hold extruder thermistor in.

- Tie-wrap x-axis bearings to carriage.

- Dress remaining loose cables.

- Raise bed (maybe 0.5mm to 1.0mm).

- The connection between the wooden bed and the transparent-plastic bed is spring-loaded, and / or lots of washers are used. Maybe we can make this a solid, fixed connection.

- Heated-bed PCB corner broken. It's "ok" today but may need fixing in future.

- I've been using a little hair-spray on the bed to help the first layer stick. I've read some people use some type of tape. To be investigated.

- Z-axis (electronics end) threaded rod and smooth rod aren't perfectly parallel to each other. This might be related to how the motor is screwed to the frame. Both Z-motors are mounted slightly loose, maybe intentionally. I suspect one side of the motor could be packed to make the rods parallel.

To be done (Software)

- Install Slicer SW on PC.

- Various Calibrations:
http://richrap.blogspot.co.uk/2012/01/slic3r-is-nicer-part-1-settings-and.html?m=1

- Other settings in Slic3r:
Nozzle diameter.
Z Offset.
Filament diameter, (white stuff already in the printer measures 2.8mm dia.
Filament material.
Nozzle temperature.
Layer height.
Retraction Length, Lift and Speed.
Print speed (7 types):
Perimeters, Small Perimeters, Infill, Solid Infill, Bridges, Travel, Bottom Layer Speed Ratio.

- G-Codes for Start and stop.

- Atmega:
Since the firmware on the Atmega MCU hasn't changed, motor calibrations aren't expected to be required. A 20mm test box was printed and measured 20.4mm x 20.1mm.

RepRap Work

2017-01-03T21:21:13Z

Paul123:

Rep Rap 3D Printer Work, Paul Dale, 2/1/17.

- Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubuntu Mint, which does work. I suspect it's a Python thing, but couldn't fix it.

- Bed thermistor open circuit, repaired. Bed LED resistor value increased to 2K2R.

- Extruder thermistor sometimes shorting. I've pulled the insulation closer to the glass bead which seems to have fixed it for now. Still needs better Kapton tape applying to hold in place.

Before / After:

[[File:Thermistor before r.png]] [[File:Thermistor after r.png]]

- Nozzle slightly blocked, (probably me keep getting the wrong height, so covering the nozzle in filament). I removed the nozzle and used a blow-torch to burn off, then poked some soft copper wire through.

[[File:nozzle_hole_r.png]]

- Extruder feed-bolt fouled with filament pieces. I scraped out most of this. I loosened the hinge of the part that squeezes filament against the feed-bolt too.

- Some linear bearings are rusty and rough. They've been lubricated all round, but the X-axis are still poor, maybe could be replaced if we decide it's worth it.

[[File:rusty_bearings_r.png]]

- Z axis captive-nut holders broken. I've added washers but at some stage they may need re-printing.

[[File:broken_z-nut_holder_r.png]]

- Z-axis couplings weren't holding the motor spindles. Instead they were only clamping the transparent tubing. The couplings have been re-fitted to clamp the motor spindles.

Before / After:

[[File:z-spindle_before_r.png]] [[File:z-spindle_after_r.png]]

- Bed-height adjusters changed to spring-loaded type.

[[File:spring_loaded_bed_r.png]]

To be done (Hardware):

- Kapton tape to hold extruder thermistor in.

- Tie-wrap x-axis bearings to carriage.

- Dress remaining loose cables.

- Raise bed (maybe 0.5mm to 1.0mm).

- The connection between the wooden bed and the transparent-plastic bed is spring-loaded, and / or lots of washers are used. Maybe we can make this a solid, fixed connection.

- Heated-bed PCB corner broken. It's "ok" today but may need fixing in future.

- I've been using a little hair-spray on the bed to help the first layer stick. I've read some people use some type of tape. To be investigated.

- Z-axis (electronics end) threaded rod and smooth rod aren't perfectly parallel to each other. This might be related to how the motor is screwed to the frame. Both Z-motors are mounted slightly loose, maybe intentionally. I suspect one side of the motor could be packed to make the rods parallel.

To be done (Software)

- Install Slicer SW on PC.

- Various Calibrations:
http://richrap.blogspot.co.uk/2012/01/slic3r-is-nicer-part-1-settings-and.html?m=1

- Other settings in Slic3r:
Nozzle diameter.
Z Offset.
Filament diameter, (white stuff already in the printer measures 2.8mm dia.
Filament material.
Nozzle temperature.
Layer height.
Retraction Length, Lift and Speed.
Print speed (7 types):
Perimeters, Small Perimeters, Infill, Solid Infill, Bridges, Travel, Bottom Layer Speed Ratio.

- G-Codes for Start and stop.

- Atmega:
Since the firmware on the Atmega MCU hasn't changed, motor calibrations aren't expected to be required. A 20mm test box was printed and measured 20.4mm x 20.1mm.

RepRap Work

2017-01-03T21:16:21Z

Paul123:

Rep Rap 3D Printer Work, Paul Dale, 2/1/17.

- Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubuntu Mint, which does work. I suspect it's a Python thing, but couldn't fix it.

- Bed thermistor open circuit, repaired. Bed LED resistor value increased to 2K2R.

- Extruder thermistor sometimes shorting. I've pulled the insulation closer to the glass bead which seems to have fixed it for now. Still needs better Kapton tape applying to hold in place.

Before / After:

[[File:Thermistor before r.png]] [[File:Thermistor after r.png]]

- Nozzle slightly blocked, (probably me keep getting the wrong height, so covering the nozzle in filament). I removed the nozzle and used a blow-torch to burn off, then poked some soft copper wire through.

[[File:nozzle_hole_r.png]]

- Extruder feed-bolt fouled with filament pieces. I scraped out most of this. I loosened the hinge of the part that squeezes filament against the feed-bolt too.

- Some linear bearings are rusty and rough. They've been lubricated all round, but the X-axis are still poor, maybe could be replaced if we decide it's worth it.

- Z axis captive-nut holders broken. I've added washers but at some stage they may need re-printing.

- Z-axis couplings weren't holding the motor spindles. Instead they were only clamping the transparent tubing. The couplings have been re-fitted to clamp the motor spindles.

- Bed-height adjusters changed to spring-loaded type.

To be done (Hardware):

- Kapton tape to hold extruder thermistor in.

- Tie-wrap x-axis bearings to carriage.

- Dress remaining loose cables.

- Raise bed (maybe 0.5mm to 1.0mm).

- The connection between the wooden bed and the transparent-plastic bed is spring-loaded, and / or lots of washers are used. Maybe we can make this a solid, fixed connection.

- Heated-bed PCB corner broken. It's "ok" today but may need fixing in future.

- I've been using a little hair-spray on the bed to help the first layer stick. I've read some people use some type of tape. To be investigated.

- Z-axis (electronics end) threaded rod and smooth rod aren't perfectly parallel to each other. This might be related to how the motor is screwed to the frame. Both Z-motors are mounted slightly loose, maybe intentionally. I suspect one side of the motor could be packed to make the rods parallel.

To be done (Software)

- Install Slicer SW on PC.

- Various Calibrations:
http://richrap.blogspot.co.uk/2012/01/slic3r-is-nicer-part-1-settings-and.html?m=1

- Other settings in Slic3r:
Nozzle diameter.
Z Offset.
Filament diameter, (white stuff already in the printer measures 2.8mm dia.
Filament material.
Nozzle temperature.
Layer height.
Retraction Length, Lift and Speed.
Print speed (7 types):
Perimeters, Small Perimeters, Infill, Solid Infill, Bridges, Travel, Bottom Layer Speed Ratio.

- G-Codes for Start and stop.

- Atmega:
Since the firmware on the Atmega MCU hasn't changed, motor calibrations aren't expected to be required. A 20mm test box was printed and measured 20.4mm x 20.1mm.

File:Nozzle hole r.png

2017-01-03T21:14:40Z

Paul123:

RepRap Work

2017-01-03T21:07:08Z

Paul123:

Rep Rap 3D Printer Work, Paul Dale, 2/1/17.

- Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubuntu Mint, which does work. I suspect it's a Python thing, but couldn't fix it.

- Bed thermistor open circuit, repaired. Bed LED resistor value increased to 2K2R.

- Extruder thermistor sometimes shorting. I've pulled the insulation closer to the glass bead which seems to have fixed it for now. Still needs better Kapton tape applying to hold in place.

Before / After:

[[File:Thermistor before r.png]] [[File:Thermistor after r.png]]

- Nozzle slightly blocked, (probably me keep getting the wrong height, so covering the nozzle in filament). I removed the nozzle and used a blow-torch to burn off, then poked some soft copper wire through.

- Extruder feed-bolt fouled with filament pieces. I scraped out most of this. I loosened the hinge of the part that squeezes filament against the feed-bolt too.

- Some linear bearings are rusty and rough. They've been lubricated all round, but the X-axis are still poor, maybe could be replaced if we decide it's worth it.

- Z axis captive-nut holders broken. I've added washers but at some stage they may need re-printing.

- Z-axis couplings weren't holding the motor spindles. Instead they were only clamping the transparent tubing. The couplings have been re-fitted to clamp the motor spindles.

- Bed-height adjusters changed to spring-loaded type.

To be done (Hardware):

- Kapton tape to hold extruder thermistor in.

- Tie-wrap x-axis bearings to carriage.

- Dress remaining loose cables.

- Raise bed (maybe 0.5mm to 1.0mm).

- The connection between the wooden bed and the transparent-plastic bed is spring-loaded, and / or lots of washers are used. Maybe we can make this a solid, fixed connection.

- Heated-bed PCB corner broken. It's "ok" today but may need fixing in future.

- I've been using a little hair-spray on the bed to help the first layer stick. I've read some people use some type of tape. To be investigated.

- Z-axis (electronics end) threaded rod and smooth rod aren't perfectly parallel to each other. This might be related to how the motor is screwed to the frame. Both Z-motors are mounted slightly loose, maybe intentionally. I suspect one side of the motor could be packed to make the rods parallel.

To be done (Software)

- Install Slicer SW on PC.

- Various Calibrations:
http://richrap.blogspot.co.uk/2012/01/slic3r-is-nicer-part-1-settings-and.html?m=1

- Other settings in Slic3r:
Nozzle diameter.
Z Offset.
Filament diameter, (white stuff already in the printer measures 2.8mm dia.
Filament material.
Nozzle temperature.
Layer height.
Retraction Length, Lift and Speed.
Print speed (7 types):
Perimeters, Small Perimeters, Infill, Solid Infill, Bridges, Travel, Bottom Layer Speed Ratio.

- G-Codes for Start and stop.

- Atmega:
Since the firmware on the Atmega MCU hasn't changed, motor calibrations aren't expected to be required. A 20mm test box was printed and measured 20.4mm x 20.1mm.

File:Boat r.png

2017-01-03T21:00:01Z

Paul123:

File:Z-spindle before r.png

2017-01-03T20:59:12Z

Paul123:

File:Z-spindle after r.png

2017-01-03T20:58:53Z

Paul123:

File:Spring loaded bed r.png

2017-01-03T20:58:18Z

Paul123:

File:Rusty bearings r.png

2017-01-03T20:57:56Z

Paul123:

File:Broken z-nut holder r.png

2017-01-03T20:57:26Z

Paul123:

File:PCBs Connectors r.png

2017-01-03T20:55:20Z

Paul123: Note connector on left can be fitted on two positions. The one shown is correct.

Note connector on left can be fitted on two positions. The one shown is correct.

File:Thermistor before r.png

2017-01-03T20:46:52Z

Paul123:

File:Thermistor after r.png

2017-01-03T20:44:44Z

Paul123:

File:Rusty Bearings 20170102 181140 lowQ.jpg

2017-01-03T20:22:09Z

Paul123:

File:Boat Before 20170102 184320 lowQ.jpg

2017-01-03T20:21:20Z

Paul123:

RepRap Work

2017-01-03T18:15:37Z

Paul123:

Rep Rap 3D Printer Work, Paul Dale, 2/1/17.

- Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubuntu Mint, which does work. I suspect it's a Python thing, but couldn't fix it.

- Bed thermistor open circuit, repaired. Bed LED resistor value increased to 2K2R.

- Extruder thermistor sometimes shorting. I've pulled the insulation closer to the glass bead which seems to have fixed it for now. Still needs better Kapton tape applying to hold in place.

- Nozzle slightly blocked, (probably me keep getting the wrong height, so covering the nozzle in filament). I removed the nozzle and used a blow-torch to burn off, then poked some soft copper wire through.

- Extruder feed-bolt fouled with filament pieces. I scraped out most of this. I loosened the hinge of the part that squeezes filament against the feed-bolt too.

- Some linear bearings are rusty and rough. They've been lubricated all round, but the X-axis are still poor, maybe could be replaced if we decide it's worth it.

- Z axis captive-nut holders broken. I've added washers but at some stage they may need re-printing.

- Z-axis couplings weren't holding the motor spindles. Instead they were only clamping the transparent tubing. The couplings have been re-fitted to clamp the motor spindles.

- Bed-height adjusters changed to spring-loaded type.

To be done (Hardware):

- Kapton tape to hold extruder thermistor in.

- Tie-wrap x-axis bearings to carriage.

- Dress remaining loose cables.

- Raise bed (maybe 0.5mm to 1.0mm).

- The connection between the wooden bed and the transparent-plastic bed is spring-loaded, and / or lots of washers are used. Maybe we can make this a solid, fixed connection.

- Heated-bed PCB corner broken. It's "ok" today but may need fixing in future.

- I've been using a little hair-spray on the bed to help the first layer stick. I've read some people use some type of tape. To be investigated.

- Z-axis (electronics end) threaded rod and smooth rod aren't perfectly parallel to each other. This might be related to how the motor is screwed to the frame. Both Z-motors are mounted slightly loose, maybe intentionally. I suspect one side of the motor could be packed to make the rods parallel.

To be done (Software)

- Install Slicer SW on PC.

- Various Calibrations:
http://richrap.blogspot.co.uk/2012/01/slic3r-is-nicer-part-1-settings-and.html?m=1

- Other settings in Slic3r:
Nozzle diameter.
Z Offset.
Filament diameter, (white stuff already in the printer measures 2.8mm dia.
Filament material.
Nozzle temperature.
Layer height.
Retraction Length, Lift and Speed.
Print speed (7 types):
Perimeters, Small Perimeters, Infill, Solid Infill, Bridges, Travel, Bottom Layer Speed Ratio.

- G-Codes for Start and stop.

- Atmega:
Since the firmware on the Atmega MCU hasn't changed, motor calibrations aren't expected to be required. A 20mm test box was printed and measured 20.4mm x 20.1mm.

RepRap Work

2017-01-03T14:55:30Z

Paul123: Created page with " Rep Rap 3D Printer Work, Paul Dale, 2/1/17. - Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubu..."

Rep Rap 3D Printer Work, Paul Dale, 2/1/17.

- Couldn't get PronterFace working under Linux (Xubuntu?) on the Bridge Rectifier PC. I have now set it up to dual boot with Lubuntu Mint, which does work. I suspect it's a Python thing, but couldn't fix it.

- Bed thermistor open circuit, repaired. Bed LED resistor value increased to 2K2R.

- Extruder thermistor sometimes shorting. I've pulled the insulation closer to the glass bead which seems to have fixed it for now. Still needs better Kapton tape applying to hold in place.

- Nozzle slightly blocked, (probably me keep getting the wrong height, so covering the nozzle in filament). I removed the nozzle and used a blow-torch to burn off, then poked some soft copper wire through.

- Extruder feed-bolt fouled with filament pieces. I scraped out most of this. I loosened the hinge of the part that squeezes filament against the feed-bolt too.

- Some linear bearings are rusty and rough. They've been lubricated all round, but the X-axis are still poor, maybe could be replaced if we decide it's worth it.

- Z axis captive-nut holders broken. I've added washers but at some stage they may need re-printing.

- Z-axis couplings weren't holding the motor spindles. Instead they were only clamping the transparent tubing. The couplings have been re-fitted to clamp the motor spindles.

- Bed-height adjusters changed to spring-loaded type.

To be done (Hardware):

- Kapton tape to hold extruder thermistor in.

- Tie-wrap x-axis bearings to carriage.

- Dress remaining loose cables.

- Raise bed (maybe 0.5mm to 1.0mm).

- The connection between the wooden bed and the transparent-plastic bed is spring-loaded, and / or lots of washers are used. Maybe we can make this a solid, fixed connection.

- Heated-bed PCB corner broken. It's "ok" today but may need fixing in future.

- I've been using a little hair-spray on the bed to help the first layer stick. I've read some people use some type of tape. To be investigated.

- Z-axis (electronics end) threaded rod and smooth rod aren't perfectly parallel to each other. This might be related to how the motor is screwed to the frame. Both Z-motors are mounted slightly loose, maybe intentionally. I suspect one side of the motor could be packed to make the rods parallel.

To be done (Software)

- Install Slicer SW on PC.
- Various Calibrations:
http://richrap.blogspot.co.uk/2012/01/slic3r-is-nicer-part-1-settings-and.html?m=1

- Other settings in Slic3r:
Nozzle diameter.
Z Offset.
Filament diameter, (white stuff already in the printer measures 2.8mm dia.
Filament material.
Nozzle temperature.
Layer height.
Retraction Length, Lift and Speed.
Print speed (7 types):
Perimeters, Small Perimeters, Infill, Solid Infill, Bridges, Travel, Bottom Layer Speed Ratio.

- G-Codes for Start and stop.

- Atmega:
Since the firmware on the Atmega MCU hasn't changed, motor calibrations aren't expected to be required. A 20mm test box was printed and measured 20.4mm x 20.1mm.

3D Printer

2017-01-03T14:50:51Z

Paul123:

A 3D printer is available at the space.

[[RepRap Work]]

Food Computer

2016-12-10T10:28:04Z

Paul123:

The group is making a food computer.
[http://wiki.openag.media.mit.edu/openag/food_computer_2.0/food_computer_2.0 Like this one...]

The reference design has just been released by MIT. As of December 2016, we're costing UK sourced parts. This can be read as a [https://drive.google.com/open?id=1x2TRR0rewz55gzWyD3c0yOXz4zeWdIDUItFABQepelc google docs spreadsheet.]

Essentially, it's a cabinet to automatically grow plants.
A Raspberry Pi and Arduino have SW loaded onto them, and offer a web-based user-interface showing graphs of temperature, humidity, and other parameters. The Pi controls actuators, via the Arduino, to keep those parameters within optimal limits for plant growth.
Like this, we'll be able to grow (for example) fresh chili's and coriander quickly, even during winter in darkest Hebden Bridge.

The Pi follows 'recipes' of the controlled parameters, and publishes logs to the cloud. This allows review and refinement of the growing process, shared with other food computer users around the world.

Food Computer

2016-12-09T22:11:51Z

Paul123:

The group is making a food computer.
[http://wiki.openag.media.mit.edu/openag/food_computer_2.0/food_computer_2.0 Like this one...]

The reference design has just been released by MIT. As of December 2016, we're costing UK sourced parts. This can be read as a [https://drive.google.com/open?id=1x2TRR0rewz55gzWyD3c0yOXz4zeWdIDUItFABQepelc google docs spreadsheet.]

Essentially, it's a cabinet to automatically grow plants.
A Raspberry Pi and Arduino have SW loaded onto them, and offer a web-based user-interface showing graphs of temperature, humidity, and other parameters. The Pi controls actuators to keep those parameters within optimal limits for plant growth.
Like this, we'll be able to grow (for example) fresh chili's and coriander quickly, even during winter in darkest Hebden Bridge.