[Coco] Homebrew CNC

[Mark Marlette]

At least when dealing with G10 or FR4. Dull burns and it is a REALLY a 
bad smell!

Quoting Gene Heskett <gene.heskett at verizon.net>:

> On Monday 07 August 2006 16:18, Mark Marlette wrote:
>> Better have LOTS of bits and cutters if you are working with FR4.
>>
>> It eats them for lunch.
>>
>> Mark
>>
> So I've been advised Mark, and one should include the cost of the dull
> mills and drills in the quote for the job.
>
>> Quoting Roger Merchberger <zmerch-coco at 30below.com>:
>>> Rumor has it that Joel Ewy may have mentioned these words:
>>>>  The bulk of the machine is made of plywood.
>>>
>>> Works for me. I have a smallish slab of 3/4" hardwood plywood that
>>> might make a good base... ;-)
>>>
>>>>  The tool I'm using is a Dremel.
>>>
>>> I have one of those - with the requisite carbide cutters & lots of
>>> fine drill bits.
>>>
>>>>   I bought the 3-axis stepper controller board from Dan Mauch
>>>> as a kit and soldered it up.  It hooks up to a PC parallel port.  I'm
>>>> currently using DANCAM (different Dan) for DOS to run the motors, but
>>>> I'd like to switch it over to EMC.  To do that I'll have to redefine
>>>> the way EMC uses the parallel port.
>>>
>>> I'll have to check those out.
>>>
>>>> The machine may be able to route PC boards.
>>>
>>> ...
>>>
>>>> That would probably play havoc with any attempt
>>>> to remove a thin layer of copper from a PCB.
>>>
>>> I wasn't looking to remove a thin layer - I was looking at cutting
>>> out some/most of the board completely.
>>>
>>> I have very good "fine motor control" (finger dexterity) for things
>>> like typing & soldering, but asking me to actually *cut* something at
>>> 30K RPM is just asking for trouble... ;-)
>>>
>>> The (poor ascii) representation of the end of a CoCo cart:
>>>
>>>          ________________________
>>>  ___    /  ||||||||||||||||||||  \    ___
>>> /   \   |  ||||||||||||||||||||  |   /   \
>>>
>>> |   \___/                        \___/   |
>>>
>>> It's that stuff that I would find very difficult to "reproduce" by
>>> hand; if a CNC could do it (speed isn't an issue here - only if it's
>>> strong enough to fully go thru the PC board with a small
>>> routing/cutting bit) to cut out the "ground wings" mechanically would
>>> be a massive plus.
>>>
>>>> Dan Mauch has a web site at:  http://www.camtronics-cnc.com/
>>>
>>> I'll go have a look.
>>>
>>> Thanks for the info!
>>> Roger "Merch" Merchberger
>>>
>>> --
>>> Roger "Merch" Merchberger  --  SysAdmin, Iceberg Computers
>>>  _±±_                          zmerch at 30below.com
>>> (©||®)  If at first you don't succeed, nuclear warhead
>>>  _)(_   disarmament should *not* be your first career choice.
>>>
>>>
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> http://five.pairlist.net/mailman/listinfo/coco
>
> --
> Cheers, Gene
> People having trouble with vz bouncing email to me should add the word
> 'online' between the 'verizon', and the dot which bypasses vz's
> stupid bounce rules.  I do use spamassassin too. :-)
> Yahoo.com and AOL/TW attorneys please note, additions to the above
> message by Gene Heskett are:
> Copyright 2006 by Maurice Eugene Heskett, all rights reserved.
>
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>