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Leo Dearden
== Leo Dearden ==
to me, replab, Open, Olle, Erik, Marc, Jeb, Smári
show details 9:45 AM (1 hour ago)
2009/11/23 Marcin Jakubowski <joseph.dolittle@gmail.com>


I'm committed to the RepLab project.


    I would like to call out further for participation in RepLab. The focus is economic significance, ie, applicability of open source tools to real production functions of society. Sam discussed this point in his post, On Replication.
=== Tools of interest ===
 
 
I'm in.
 
    (1), tell us the tool(s) of interest to you;
 


RepRap.
RepRap.
- support material
* support material
- for electronics
* for electronics
  - Pick n place
** Pick n place
  - conductive material deposition
** conductive material deposition
- for mold making
* for mold making
- for ceramics
* for ceramics


CNC Machine Tools. Lathe, Router, Mill.
CNC Machine Tools. Lathe, Router, Mill.
- air bearings based on graphite blocks for linear slides and spindles
* air bearings based on graphite blocks for linear slides and spindles
- casting whole machines from epoxy/granite/carbon fiber composites
* casting whole machines from epoxy/granite/carbon fiber composites
- using laser interferometers during fabrication and operation to tool up to extreme accuracy from inaccurate components and with inaccurate tools.
* using laser interferometers during fabrication and operation to tool up to extreme accuracy from inaccurate components and with inaccurate tools.
- fabricating low cost high performance linear motors for extremely high motion performance low to moderate load tools
* fabricating low cost high performance linear motors for extremely high motion performance low to moderate load tools
- carbon fibre composite air bearing screws for high load high performance tools
* carbon fibre composite air bearing screws for high load high performance tools


Software tools
Software tools
- Electronics place and route for RepRap
* Electronics place and route for RepRap
- Unsupervised CAM (subtractive cutting path generation)
* Unsupervised CAM (subtractive cutting path generation)


Curing oven for composites
Curing oven for composites
Vacuum mixing and casting systems for composites
Vacuum mixing and casting systems for composites
Vacuum pumps
 
Air Compressors
    (2), what specific technical developments you are willling to contribute to the project - such as design, calculations, research, fabrication, testing, documentation, web development, marketing, resource development, parts sourcing assistance, etc.
 


=== Personal Participation ===


I will work on (in order, subject to revision)
I will work on (in order, subject to revision)
- CNC router bootstap: improved spindle mounting, then 4th axis. Later, vacuum clamping and precision kinematic clamping.
* CNC router bootstap:  
- RepStrap (based on CNC router cartesian bot): single plastic extruder head, second head, paste head, low melt alloy and copper composites for extrusion, printing circuits, pick and place.
** improved spindle mounting
- Powerful and high precision machine tools as detailed above.
** 4th axis.  
** Later, vacuum clamping and precision kinematic clamping.
* RepStrap (based on CNC router cartesian bot)
** single plastic extruder head
** second hot extruder head
** paste head
** low melt alloy and copper composites for extrusion
** printing circuits
** pick and place.
* Powerful and high precision machine tools as detailed above.
   
   
I'll offer advice and comment wherever it's welcome.  
I'll offer advice and comment wherever it's welcome.  


    (3), resources and infrastructure that you have available, and what gruops you are involved with or that you can leverage for assistance
=== Resources ===
 


I have a fairly extensive personal workshop (http://fabricationsofthemind.blogspot.com/2008/10/in-praise-of-good-workshop.html).
I have a fairly extensive personal workshop (http://fabricationsofthemind.blogspot.com/2008/10/in-praise-of-good-workshop.html).
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I'm peripherally involved with the RepRap project, and will get more deeply involved as I work on my RepStrap. I'm a well liked friend of the explosively growing Noisebridge San Francisco hackerspace. I currently work for Google. I may be able to harness or evoke contributions from any of these, and I will listen for opportunities to do so.
I'm peripherally involved with the RepRap project, and will get more deeply involved as I work on my RepStrap. I'm a well liked friend of the explosively growing Noisebridge San Francisco hackerspace. I currently work for Google. I may be able to harness or evoke contributions from any of these, and I will listen for opportunities to do so.
   
   
 
=== Funding Model ===
    (4), suggestions on strategies and enterprise models that can be utilized in development
 


I've funded my work so far from my income. In the next three years I intend to bootstrap through having more free time to taking paid work based on RepLab technology to develop and deploy machines. The things I learn in that work will be contributed open source and the money from it will support me and my work. If possible, I will replicate this model, supporting others in doing the same.
I've funded my work so far from my income. In the next three years I intend to bootstrap through having more free time to taking paid work based on RepLab technology to develop and deploy machines. The things I learn in that work will be contributed open source and the money from it will support me and my work. If possible, I will replicate this model, supporting others in doing the same.
    (5), suggestions on tools missing, and how you're willing to contribute to devloping them


=== Time Budget ===


See above, below, and other posts.
I'm working very full time at the moment. I can currently contribute a very little. I'll have a little more time in the spring 2010, and hope to secure one day a week to work on open source circuit printing, as part of my paid job, later 2010. Beyond that, more and more time as I can arrange it.
 
    (6), how much energy you can commit - do you 'have a job' or can you commit significant time?


=== RepLab Tool List Opinions ===


I'm working very full time at the moment. I can currently contribute a very little. I'll have a little more time in the spring, and hope to secure one day a week to work on open source circuit printing, as part of my paid job, later next year. Beyond that, more and more time as I can arrange it.


Build/Defer is ever only a personal opinion. FWIW, I'm open to persuasion, and more importantly, whoever wants to Build anything, can of course get on with it. :-)
Build/Defer is ever only a personal opinion. FWIW, I'm open to persuasion, and more importantly, whoever wants to Build anything, can of course get on with it. :-)
   
   


    TOOL LIST - from FabLab (see  detailedhis for a list)
1. Laser cutter - large DIY community exists for C02 lasers
    1. Laser cutter - large DIY community exists for C02 lasers
 


Very handy. It's basically a new tool head for a plasma table or similar. Defer.
Very handy. It's basically a new tool head for a plasma table or similar. Defer.
   
   
 
2. ShopBot - RepTab is the Factor e Farm version
    2. ShopBot - RepTab is the Factor e Farm version
 


RepTab looks like a good plasma table. I'm not sure how well it will handle cutting loads. Perhaps it will require modification to do that, but some sort of gantry router will work well and should definitely be in the toolkit. Build soon.
RepTab looks like a good plasma table. I'm not sure how well it will handle cutting loads. Perhaps it will require modification to do that, but some sort of gantry router will work well and should definitely be in the toolkit. Build soon.
   
   
 
3. Precise router for milling circuits
    3. Precise router for milling circuits
 


Precise router, for many things. If we can make it stiff and coolant proof enough, it becomes a Mill, too. If it's heat and RF resistant enough it's a plasma table. If it's fast enough it's a laser cutter, or a RepStrap. Build soon.
Precise router, for many things. If we can make it stiff and coolant proof enough, it becomes a Mill, too. If it's heat and RF resistant enough it's a plasma table. If it's fast enough it's a laser cutter, or a RepStrap. Build soon.
Line 97: Line 81:
2 and 3 can have a lot in common. 3 is just smaller and more precise. Common designs could be mostly parametrised to provide both.
2 and 3 can have a lot in common. 3 is just smaller and more precise. Common designs could be mostly parametrised to provide both.


    4. Plasma cutter - power circuit is main point to opensource
4. Plasma cutter - power circuit is main point to opensource
 


Yes. The head is also non-trivial, IMHO. I suggest: Defer.
Yes. The head is also non-trivial, IMHO. I suggest: Defer.


    5. Welder - power circuit is main point to opensource
5. Welder - power circuit is main point to opensource
 


Yes.  Likewise, Defer.
Yes.  Likewise, Defer.


    6. Oscilloscope - can a computer oscilloscope cover most needs?
6. Oscilloscope - can a computer oscilloscope cover most needs?


Yes it can. It can be just as good as (or better than) a standalone one. There are projects out there to make these already. Obtain, commercial or open source.


Yes it can. It can be just as good as (or better than) a standalone one. There are projects out there to make these already. Obtain, commercial or open source.
7. Rep(st)Rap
 
    Beyond FabLab:
    1. RepRap - fabrication streamlining and open business model needed
 


Build or Obtain a kit then Build our version as discussed in other posts.
Build or Obtain a kit then Build our version as discussed in other posts.
   
   
 
8. Mill
    2. Mill
 


Build
Build
   
   
 
9. Drill
    3. Drill
 


Hand drill, drillstand: Obtain. Pillar drill can be built as part of the Mill.
Hand drill, drillstand: Obtain. Pillar drill can be built as part of the Mill.


    4. Lathe
10. Lathe
 


Build.
Build.


    5. Induction furnace - power electronics are main point to opensource
11. Induction furnace - power electronics are main point to opensource
 


Defer.
Defer.
    6. Ciruit fab - automated process including pick-and-place


12. Ciruit fab - automated process including pick-and-place


Build.
Build.
   
   
13. Aluminum extrusion


    7. Aluminum extrusion
14. Metal casting - of ingot from induction furnace, and other molds
 
15. Hot rolling
    8. Metal casting - of ingot from induction furnace, and other molds
16. Cold rolling
    9. Hot rolling
17. Forging
    10. Cold rolling
18. Metal shear and hole punch for up to 1" steel
    11. Forging
19. Wire drawing
    12. Metal shear and hole punch for up to 1" steel
    13. Wire drawing
 


Defer all.  
Defer all.  
    These tools cover electronics, precision fabrication, heavy metal work, and ability to make other tools for producing any technology known in advanced civilization. Tools created from the above can even yield clean room technology. The above is quiate a limited set, but is sufficient to generate other tools. The latter parts focus on serious industrial process, with a bias towards building replicable, post-scarcity resilient communities with capacity to bootstrap largerly from scrap steel.


The heavy industrial infrastructure will be easier once we have the machine tools working. We'll also have a better idea of what we want and need.
The heavy industrial infrastructure will be easier once we have the machine tools working. We'll also have a better idea of what we want and need.


=Beyond FabLab=
=== Beyond RepLab ===


Air compressor


Air compressor
Vacuum Pump
Vacuum Pump
- 0.1 mbar, >10cfm for degassing and lamination.
* 0.1 mbar, >10cfm for degassing and lamination.
- 0.1 bar, >100cfm for vac clamping.
* 0.1 bar, >100cfm for vac clamping.
** i hear a shop vac + light duty pump and check valve works great
 
1 phase -> 3 phase converter.
1 phase -> 3 phase converter.
Shaker, for casting
Shaker, for casting


[[Category:RepLab Developers]]
[[Category:RepLab Developers]]
[[Category:People]]

Latest revision as of 22:19, 1 December 2012

Leo Dearden

I'm committed to the RepLab project.

Tools of interest

RepRap.

  • support material
  • for electronics
    • Pick n place
    • conductive material deposition
  • for mold making
  • for ceramics

CNC Machine Tools. Lathe, Router, Mill.

  • air bearings based on graphite blocks for linear slides and spindles
  • casting whole machines from epoxy/granite/carbon fiber composites
  • using laser interferometers during fabrication and operation to tool up to extreme accuracy from inaccurate components and with inaccurate tools.
  • fabricating low cost high performance linear motors for extremely high motion performance low to moderate load tools
  • carbon fibre composite air bearing screws for high load high performance tools

Software tools

  • Electronics place and route for RepRap
  • Unsupervised CAM (subtractive cutting path generation)

Curing oven for composites Vacuum mixing and casting systems for composites Vacuum pumps Air Compressors

Personal Participation

I will work on (in order, subject to revision)

  • CNC router bootstap:
    • improved spindle mounting
    • 4th axis.
    • Later, vacuum clamping and precision kinematic clamping.
  • RepStrap (based on CNC router cartesian bot)
    • single plastic extruder head
    • second hot extruder head
    • paste head
    • low melt alloy and copper composites for extrusion
    • printing circuits
    • pick and place.
  • Powerful and high precision machine tools as detailed above.

I'll offer advice and comment wherever it's welcome.

Resources

I have a fairly extensive personal workshop (http://fabricationsofthemind.blogspot.com/2008/10/in-praise-of-good-workshop.html).

I'm peripherally involved with the RepRap project, and will get more deeply involved as I work on my RepStrap. I'm a well liked friend of the explosively growing Noisebridge San Francisco hackerspace. I currently work for Google. I may be able to harness or evoke contributions from any of these, and I will listen for opportunities to do so.

Funding Model

I've funded my work so far from my income. In the next three years I intend to bootstrap through having more free time to taking paid work based on RepLab technology to develop and deploy machines. The things I learn in that work will be contributed open source and the money from it will support me and my work. If possible, I will replicate this model, supporting others in doing the same.

Time Budget

I'm working very full time at the moment. I can currently contribute a very little. I'll have a little more time in the spring 2010, and hope to secure one day a week to work on open source circuit printing, as part of my paid job, later 2010. Beyond that, more and more time as I can arrange it.

RepLab Tool List Opinions

Build/Defer is ever only a personal opinion. FWIW, I'm open to persuasion, and more importantly, whoever wants to Build anything, can of course get on with it. :-)


1. Laser cutter - large DIY community exists for C02 lasers

Very handy. It's basically a new tool head for a plasma table or similar. Defer.

2. ShopBot - RepTab is the Factor e Farm version

RepTab looks like a good plasma table. I'm not sure how well it will handle cutting loads. Perhaps it will require modification to do that, but some sort of gantry router will work well and should definitely be in the toolkit. Build soon.

3. Precise router for milling circuits

Precise router, for many things. If we can make it stiff and coolant proof enough, it becomes a Mill, too. If it's heat and RF resistant enough it's a plasma table. If it's fast enough it's a laser cutter, or a RepStrap. Build soon.

2 and 3 can have a lot in common. 3 is just smaller and more precise. Common designs could be mostly parametrised to provide both.

4. Plasma cutter - power circuit is main point to opensource

Yes. The head is also non-trivial, IMHO. I suggest: Defer.

5. Welder - power circuit is main point to opensource

Yes. Likewise, Defer.

6. Oscilloscope - can a computer oscilloscope cover most needs?

Yes it can. It can be just as good as (or better than) a standalone one. There are projects out there to make these already. Obtain, commercial or open source.

7. Rep(st)Rap

Build or Obtain a kit then Build our version as discussed in other posts.

8. Mill

Build

9. Drill

Hand drill, drillstand: Obtain. Pillar drill can be built as part of the Mill.

10. Lathe

Build.

11. Induction furnace - power electronics are main point to opensource

Defer.

12. Ciruit fab - automated process including pick-and-place

Build.

13. Aluminum extrusion

14. Metal casting - of ingot from induction furnace, and other molds 15. Hot rolling 16. Cold rolling 17. Forging 18. Metal shear and hole punch for up to 1" steel 19. Wire drawing

Defer all.

The heavy industrial infrastructure will be easier once we have the machine tools working. We'll also have a better idea of what we want and need.

Beyond RepLab

Air compressor

Vacuum Pump

  • 0.1 mbar, >10cfm for degassing and lamination.
  • 0.1 bar, >100cfm for vac clamping.
    • i hear a shop vac + light duty pump and check valve works great

1 phase -> 3 phase converter.

Shaker, for casting

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