Group Project - Plotter/PCB Mill/CNC/3d Printer Build

This plan has been brewing for a while, and we’ve discussed it at meetings
and on the board before, so I reckon we should start doing some planning to
make it happen!

My initial thought is we should aim for a bed size of 60cm x 60cm x 10cm,
build the first unit out of MDF / aluminium, and use threaded rod coupled
directly to stepper motors for moving.

I’m thinking a gantry system is probably the best way to go for the actual
system, its slightly more difficult mechanically, but means the whole unit
will take up less space overall than a moving bed design.

As far as electronics go, we can drive steppers fairly easily using either
dedicated chips (such as an an a3982), or build our own h-bridges out of
FETs.

degrees of movement set up. From here, we can add different heads (pen for
plotter, dremel for PCB milling, router for wood carving, extruder for 3d
printing) and be well on our way to open manufacturing!

If anyone is up for helping out with the project, has any ideas or
suggestions, you can post them here, or grab me at the hack day on saturday.

Hack On!

http://3.bp.blogspot.com/_UYb96Pphtik/S7M2XE35b6I/AAAAAAAAAJE/_ECu1vSUo_I/s1600/IMG_2113.JPGthis
is the design i was thinking of using for inspiration (stealing),
except using cheaper materials until we have a working PoC.

Once we have that up and running, we can use it to make parts for v2, made
of fancier materials!On 15 April 2010 15:23, Bob Clough parag0n@ivixor.net wrote:

This plan has been brewing for a while, and we’ve discussed it at meetings
and on the board before, so I reckon we should start doing some planning to
make it happen!

My initial thought is we should aim for a bed size of 60cm x 60cm x 10cm,
build the first unit out of MDF / aluminium, and use threaded rod coupled
directly to stepper motors for moving.

I’m thinking a gantry system is probably the best way to go for the actual
system, its slightly more difficult mechanically, but means the whole unit
will take up less space overall than a moving bed design.

As far as electronics go, we can drive steppers fairly easily using either
dedicated chips (such as an an a3982), or build our own h-bridges out of
FETs.

From my POV, this would be stage one, getting a full cartesian robot with 3
degrees of movement set up. From here, we can add different heads (pen for
plotter, dremel for PCB milling, router for wood carving, extruder for 3d
printing) and be well on our way to open manufacturing!

If anyone is up for helping out with the project, has any ideas or
suggestions, you can post them here, or grab me at the hack day on saturday.

Hack On!

Just saw http://hackaday.com/2010/04/14/robotic-chess-opponent/, and had
another idea, we could mount a camera above it, put a robotic hand on there,
and have it play chess / draughts / backgammon / go / monopoly / other board
game!On 15 April 2010 15:35, Bob Clough parag0n@ivixor.net wrote:

http://3.bp.blogspot.com/_UYb96Pphtik/S7M2XE35b6I/AAAAAAAAAJE/_ECu1vSUo_I/s1600/IMG_2113.JPGthis is the design i was thinking of using for inspiration (stealing),
except using cheaper materials until we have a working PoC.

Once we have that up and running, we can use it to make parts for v2, made
of fancier materials!

On 15 April 2010 15:23, Bob Clough parag0n@ivixor.net wrote:

This plan has been brewing for a while, and we’ve discussed it at meetings
and on the board before, so I reckon we should start doing some planning to
make it happen!

My initial thought is we should aim for a bed size of 60cm x 60cm x 10cm,
build the first unit out of MDF / aluminium, and use threaded rod coupled
directly to stepper motors for moving.

I’m thinking a gantry system is probably the best way to go for the actual
system, its slightly more difficult mechanically, but means the whole unit
will take up less space overall than a moving bed design.

As far as electronics go, we can drive steppers fairly easily using either
dedicated chips (such as an an a3982), or build our own h-bridges out of
FETs.

From my POV, this would be stage one, getting a full cartesian robot with
3 degrees of movement set up. From here, we can add different heads (pen
for plotter, dremel for PCB milling, router for wood carving, extruder for
3d printing) and be well on our way to open manufacturing!

If anyone is up for helping out with the project, has any ideas or
suggestions, you can post them here, or grab me at the hack day on saturday.

Hack On!

Great idea Bob, I’ve been wanting to make one of these for ages so it makes
sense to combine efforts. The only problem for me is I’ve just accepted a
new job in Cambridge so I don’t know how long I’ll be around for. I’ll try
and come down on Saturday and have a talk about it then.

JimOn 15 April 2010 15:23, Bob Clough parag0n@ivixor.net wrote:

This plan has been brewing for a while, and we’ve discussed it at meetings
and on the board before, so I reckon we should start doing some planning to
make it happen!

My initial thought is we should aim for a bed size of 60cm x 60cm x 10cm,
build the first unit out of MDF / aluminium, and use threaded rod coupled
directly to stepper motors for moving.

I’m thinking a gantry system is probably the best way to go for the actual
system, its slightly more difficult mechanically, but means the whole unit
will take up less space overall than a moving bed design.

As far as electronics go, we can drive steppers fairly easily using either
dedicated chips (such as an an a3982), or build our own h-bridges out of
FETs.

From my POV, this would be stage one, getting a full cartesian robot with 3
degrees of movement set up. From here, we can add different heads (pen for
plotter, dremel for PCB milling, router for wood carving, extruder for 3d
printing) and be well on our way to open manufacturing!

If anyone is up for helping out with the project, has any ideas or
suggestions, you can post them here, or grab me at the hack day on saturday.

Hack On!


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got a few links somewhere in my bookmarks - first one i can find is this
one:

http://diylilcnc.org/

http://diylilcnc.org/free plans for a CNC machine. im sure we can source
some of that stuff freely from all those printers at MadLab.

Theres also the ‘McWire’ one on instructables, though that uses iron pipes
for the main structure.

Then theres http://www.cnczone.com/http://www.cnczone.com/modules.php?name=Links&file=viewcategory&cid=22
which
has loads of stuff on all sorts of CNC machines.

With the fablab opened in Manchester as well, this is gonna be a load easier
to make accurate parts as well. :smiley:

-TomOn 15 April 2010 17:18, Jim MacArthur jmacarthur.uk@googlemail.com wrote:

Great idea Bob, I’ve been wanting to make one of these for ages so it makes
sense to combine efforts. The only problem for me is I’ve just accepted a
new job in Cambridge so I don’t know how long I’ll be around for. I’ll try
and come down on Saturday and have a talk about it then.

Jim

On 15 April 2010 15:23, Bob Clough parag0n@ivixor.net wrote:

This plan has been brewing for a while, and we’ve discussed it at meetings
and on the board before, so I reckon we should start doing some planning to
make it happen!

My initial thought is we should aim for a bed size of 60cm x 60cm x 10cm,
build the first unit out of MDF / aluminium, and use threaded rod coupled
directly to stepper motors for moving.

I’m thinking a gantry system is probably the best way to go for the actual
system, its slightly more difficult mechanically, but means the whole unit
will take up less space overall than a moving bed design.

As far as electronics go, we can drive steppers fairly easily using either
dedicated chips (such as an an a3982), or build our own h-bridges out of
FETs.

From my POV, this would be stage one, getting a full cartesian robot with
3 degrees of movement set up. From here, we can add different heads (pen
for plotter, dremel for PCB milling, router for wood carving, extruder for
3d printing) and be well on our way to open manufacturing!

If anyone is up for helping out with the project, has any ideas or
suggestions, you can post them here, or grab me at the hack day on saturday.

Hack On!


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Thomas C. Bloor Mob: (+44) 07905646892
tom.bloor@googlemail.com or tom@bloorfamily.net
Homepage: http://tom.bloorfamily.net

Congrats on the new job Jim!

Tom, that diylilcnc looks good, and also the oomlout instructable linked
from the pdf.

I was thinking how to implement changable heads, and i think a simple
slot-in backboard with a bolt to keep it in place would work fine.

-BobOn 15 April 2010 17:18, Jim MacArthur jmacarthur.uk@googlemail.com wrote:

Great idea Bob, I’ve been wanting to make one of these for ages so it makes
sense to combine efforts. The only problem for me is I’ve just accepted a
new job in Cambridge so I don’t know how long I’ll be around for. I’ll try
and come down on Saturday and have a talk about it then.

Jim

On 15 April 2010 15:23, Bob Clough parag0n@ivixor.net wrote:

This plan has been brewing for a while, and we’ve discussed it at meetings
and on the board before, so I reckon we should start doing some planning to
make it happen!

My initial thought is we should aim for a bed size of 60cm x 60cm x 10cm,
build the first unit out of MDF / aluminium, and use threaded rod coupled
directly to stepper motors for moving.

I’m thinking a gantry system is probably the best way to go for the actual
system, its slightly more difficult mechanically, but means the whole unit
will take up less space overall than a moving bed design.

As far as electronics go, we can drive steppers fairly easily using either
dedicated chips (such as an an a3982), or build our own h-bridges out of
FETs.

From my POV, this would be stage one, getting a full cartesian robot with
3 degrees of movement set up. From here, we can add different heads (pen
for plotter, dremel for PCB milling, router for wood carving, extruder for
3d printing) and be well on our way to open manufacturing!

If anyone is up for helping out with the project, has any ideas or
suggestions, you can post them here, or grab me at the hack day on saturday.

Hack On!


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