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Type: Posts; User: dharmic

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  1. Re: CNC Mini series for beginners and Hobbyists

    Last company I worked for had a blanket ban on cloud based activity and they're working with some cutting edge stuff. Reasons?
    1. military and commercially sensitive information security.
    2....
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    Re: Treadmill motor/drive help

    I beg pardon, mine was not an MC-60. It was one of the fancier ones which, on a quick search now, I can't easily locate. Apologies for the misinformation.
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    Re: Treadmill motor/drive help

    I built a 2"x72" grinder around a treadmill motor. The treadmill I disembowelled had the motor, the power board (with the potted motion controller sub-board sticking up from it on legs) and the...
  4. Re: 6040 Break Out Board & Motion Controller Combined

    Went to their website to get more ammunition for my argument and even they call 'em "motion controllers".

    Thanks, Gerry, I learned something today. :)
  5. Re: 6040 Break Out Board & Motion Controller Combined

    Dunno, Gerry... splitting hairs maybe but I wouldn't necessarily call the CNCDrive stuff "motion controllers" so much as "adapters with accurate step clocks built in". The host PC is still generating...
  6. Re: 6040 Break Out Board & Motion Controller Combined

    It would. I have the UC400ETH and it works beautifully.

    I'm more talking about this kind which might work for printers but certainly don't work for this kind of application:...
  7. Re: 6040 Break Out Board & Motion Controller Combined

    Note that, in addition to having no motion control on board, the motion control software eg Mach3, LinuxCNC etc won't talk via the cheap USB to Parallel adapters. If your PC doesn't have a parallel...
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    Re: Small Portable Machine

    I was looking into this years ago for the purpose of being able to move my life onto a boat yet still have a small workshop.

    It's all compromises.

    Maybe a PocketNC machine would foot the bill...
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    Re: Rapidly dulling end mills?

    For me, though, when that kinda stuff happens my first response is usually to try dropping the spindle RPM.

    Increasing feed power and speed, decreasing spindle RPM, using a smaller diameter...
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    Re: arduino grount to chassis ground??

    Which changes things because most laptops don't even have a third pin for ground (at least in Oz). So you need a way of locally grounding your arduino and, indeed, the laptop via the USB connection...
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    Re: arduino grount to chassis ground??

    The USB breakout I had before I replaced it with an ethernet one was like that - completely floating, no grounding, nothing.

    I used to get a 2mm spark when I plugged it into the computer, across...
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    Re: arduino grount to chassis ground??

    Both?

    Use a multimeter to ensure that arduino's power supply's input ground is connected to its negative output. If it doesn't, ie it's floating, I'd consider replacing it because you have no idea...
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    Re: Improving Machine Rapid Speed

    Higher voltage will only mean lower current for the same power. For what you're seeing in a motor, higher voltage will push more current through the motor, use more power and create more heat.
  14. Thread: X6-2200L

    by dharmic
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    Re: X6-2200L

    Nah, if the gantry moves smoothly (AFAIK most of them do, you guys were just the lucky ones) I reckon the supplied motor is plenty strong enough. I can get nearly the same rapids on the Y as I can on...
  15. Thread: X6-2200L

    by dharmic
    Replies
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    Re: X6-2200L

    Ready to run is off the table without steppers etc. I reckon that, since it didn't have steppers and everything, they never bothered giving it more than a once-and-back. If it moved at all they'd...
  16. Thread: X6-2200L

    by dharmic
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    Re: X6-2200L

    Tried oiling the sticky one? It also may just be a bit tight and need a little running in.
  17. Re: CNC aluminium wall/route thickness for static axial flange seal

    Goo seals are quick and easy, but... If you need to remove and replace the thing regularly (or ever) I'd recommend for an o-ring over gasket goo because having to scrape and replace seals gets old...
  18. Thread: No download

    by dharmic
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    Re: No download

    I thought the same but contacted them via email. It was a remarkably painless experience:

    1. Software link and key turned up within a couple of hours.
    2. Throughout the evaluation period they...
  19. Re: binding barrel bolt meets a carriage bolt

    How I did it for the rollers in my 2" x 72" belt grinder...

    1. A bore in the cylinder as wide as the inner diameter of the bearing outer race, with counterbores in the ends a light press fit with...
  20. Re: binding barrel bolt meets a carriage bolt

    Bearings in the cylinder?
  21. Re: Looking for advise on cutting thin paper/fabric material

    Also be aware that the yellowing may just be a fact of life when laser cutting that material. You may calm it down by running hotter and faster which gives less time for the heat of the cut to...
  22. Re: Home switches - how useful, what is your set-up

    I have (hopefully) a SwissMak on the way, when it finally arrives I'll be remembering this thread to build some decent homing switches in from the get go. Thanks, chaps!
  23. Re: Home switches - how useful, what is your set-up

    Sorry, even I cringed reading my last post just now. It seemed a lot more light hearted and a lot less like mactec last night.

    @CL_MotoTech: I misread your comment about each tool change. Again,...
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    Re: Designing new Router called Maximus

    FWIW if I were going to do a machine ground up, it'd be a "high rail" style. So much more opportunity to stiffen up the gantry. As far as I can see the only real downside is fitting in oversized...
  25. Re: Need help brainstorming a solution for this mill turn spindle

    http://emo.simonlockwood.net/wtf.gif

    Calm down, fellas.

    There's classical education (which acknowledges the 0.7 femtometre deflection of a block of granite yadda yadda yadda). Useful for...
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