[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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