[Lab] simple CNC multibuild

[Paul & Andrea Mumby]

At the very least I would assume it does not include the interface circuit
(which at it's simplest if it's using a parallel port and EMC2 to drive it.
Cheap 3 axis stepper boards on ebay are still going to run you a couple
hundred... Although 3x pololus with direct interface to parallel port would
only cost about $40 plus shipping, and would easily drive a small scale 3
axis CNC, depending on how well the mechanics work.

I'd be interested in this for sure...

Also, does the current BOM include a spindle? or is it the Cartesian bot
only, and up to you to provide a spindle... If so I have some ideas about
how to build a nice spindle for quite cheap using RC hobby parts.

On Thu, Oct 28, 2010 at 3:03 PM, Darcy Whyte <darcy at siteware.com> wrote:

> I didn't mean the computer, I meant everything from the computer to the
> machine.
>
>
>
> On Thu, Oct 28, 2010 at 3:01 PM, Tom Burns <tom.i.burns at gmail.com> wrote:
>
>> Motors are included in the $100, but it assumes that you have a computer
>> with a real parallel port available for driving the stepper motors.  So any
>> old pentium-era desktop would suffice.
>>
>>
>> On Thu, Oct 28, 2010 at 2:59 PM, Darcy Whyte <darcy at siteware.com> wrote:
>>
>>> Does the 100 bucks cover electronics? It's obviously not a very serious
>>> machine but I think it could be fun to do a group build. And it would be fun
>>> to have.
>>>
>>>
>>>
>>> On Thu, Oct 28, 2010 at 2:54 PM, Tom Burns <tom.i.burns at gmail.com>wrote:
>>>
>>>> Hi folk,
>>>>
>>>> After makerbot & CNC conversations taking place on the list I figure
>>>> this would be a worthy proposal.
>>>>
>>>> I ran across a CNC build that is the simplest I have ever seen:
>>>> http://fab.cba.mit.edu/classes/MIT/863.09/people/dcarr/final/final.html. There is a BOM on there, it's only around 20 parts.
>>>>
>>>> Is there anyone interested in doing a group parts buy/build of this
>>>> CNC?  It's not huge, it won't do everything, but if you're like me you'd
>>>> probably love a little CNC.
>>>>
>>>> There's about 20 parts and it costs under $100 to build.  If we had a
>>>> group I'm sure the price will go down and so will the complexity.
>>>>
>>>> Anybody interested?
>>>>
>>>> Tom
>>>>
>>>>
>>>>
>>>>
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>>>>
>>>
>>
>
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