[olug] Linux CNC 2.6.4

[Rob Townley]

Cool are you going to the holiday party?
On Dec 2, 2014 5:15 PM, "unfy" <olug at unfy.org> wrote:

> Breakout board arrived yesterday.
>
> LinuxCNC 2.6.4 bootable dvd popped into a random machine with LPT port
> here at work.  Configure interface (this pin does what, and what's the
> timing)... and BAM! it works.
>
> Well, at least - a single motor connected to a driver and then the
> breakout board works :D.
>
> Looks like LinuxCNC is more or less an 'engine'.  You need certain cad /
> etc software to generate the gcode you feed into it.  You *can* write it
> from scratch (dust off them childhood LOGO turtle moves)... but... that
> seems tedious imho.  There's plenty of 2D "Cam" software / tools out there,
> and a few OSS etc tools.
>
>
>
> On 11/22/2014 1:00 AM, unfy wrote:
>
>> Am gonna be building a CNC of sorts soon.
>>
>> Next week the rest of the electronics should come in (generally) and can
>> start fiddling with the software & electronics.
>>
>> Went the dumb-lpt port based route and linuxcnc.  Wanted linuxcnc
>> because, well, this seems like the ideal application of linux (embedded
>> stuff, servers, etc).
>>
>> I'll prolly be getting an HP DC7600 (or something that's got a model
>> similar to that) to run the thing.  It's a p4 and stuff, but a coworker has
>> plenty and it seems appropriate to re-purpose one instead of
>> dumpster/recycling.
>>
>> Anyone have any hints or suggestions from anyone that has any linuxcnc
>> experience ?
>>
>> I don't expect problems, but ya never know.
>>
>> ---------
>>
>> For the OT bits - planning on either a 12x12 bed or a 12x12 cutting
>> area.  I dunno.  An example:
>>
>> http://cdn.instructables.com/F0P/DZA6/GP7IFA3Y/F0PDZA6GP7IFA3Y.LARGE.jpg
>>
>> There's plenty of designs that follow this style of moving the entire
>> gantry along the X axis (or Y, whatever).
>>
>> Although a moving bed design is prolly better for such a small machine,
>> I'm building a small version of the design to see how it all works when it
>> comes time to scale it to 4'x4' or 8'x4' etc. I've only got 76oz-in
>> nema17's at the moment so there's some concern if they'll be strong enough
>> for even the small design. We'll see :D.
>>
>> I'll continue to use the small scale machine down the road - want
>> something in my apartment to auto drill holes in PCB's or cut out smaller
>> parts etc.  Will be building a sound proof box around it and dust
>> collection system etc.
>>
>>
>>
>>
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