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helno posted:I have been running a very light duty foam cutting machine for a few years now. Occasionally I cut tougher stuff like G10 but it is not really meant for that. Is that using like ... rollers as one of the axises? I've never seen something like that before.
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# ¿ Jul 20, 2013 18:33 |
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# ¿ May 15, 2024 03:01 |
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Speaking of assholes with super nice shops, I really enjoyed reading this guys: http://lcamtuf.coredump.cx/gcnc/ stuff.
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# ¿ Jul 26, 2013 06:28 |
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I've always thought that this might be an acceptable way to get yerself some aluminum in bar form.
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# ¿ Jul 29, 2013 06:35 |
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So I've been wondering, where in the chain from cad -> making cuts does G-Code get changed into revolutions of a stepper motor or servo? Is that what Mach3 or Linux CNC does?
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# ¿ Oct 2, 2017 05:54 |
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Sagebrush posted:Depends on the design of your machine, but yes, sometimes that can happen in LinuxCNC or Mach3. So given parts 4 and 5, how do machines running on Mach3 do closed loop? It seems to me like there's no place for feedback in that loop. So if you want a closed loop system are you limited to a more integrated machine? And then don't you lose some of the software functionality?
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# ¿ Oct 2, 2017 06:21 |
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As another baby step on my road to a DIY cnc machine I decided to bite the bullet and buy a linear rail and carriage from mcmaster carr. Turns out that they're ground THK rails & carriages . Explains the price.
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# ¿ Oct 7, 2017 21:32 |
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That's totally a piece from a movie prop but I can't remember which. Some sci-fi thing I think.
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# ¿ Jan 9, 2019 18:36 |
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I'm trying to wrap my head around how you would measure that two linear rails are: 1) parallel 2) level For leveling would you use a straight edge and a machinists level? For parallelism, I haven't the faintest clue. Would you have an indicator on one rail measuring the other? Or would you have like a reference straight edge in between the two and then measure the distance between that to either rail?
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# ¿ Mar 5, 2019 19:06 |
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# ¿ May 15, 2024 03:01 |
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That's a really small work envelope. What's your budget?
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# ¿ Jul 29, 2019 23:08 |