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Type: Posts; User: QuinnSjoblom

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  1. Replies
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    Ok, I know you've set up a lot of control...

    Ok, I know you've set up a lot of control cabinets so I'll just continue to do it this way. It's how I'm set up currently and my machine has been 100% reliable.
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    Currently I have my machine wired the same way....

    Currently I have my machine wired the same way. Dc grounded to earth. I have hundreds of hours of run time without a single lost step or any hiccup at all. I think I'll just stick to how it's been....
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    I understand the importance of star grounding to...

    I understand the importance of star grounding to avoid loops, but are you grounding both ac ground and dc common to this single point, or isolating the 2?
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    Re: Any pics of cnc control cabinets?

    Sounds like I need to stop and get a better understanding of proper grounding. There seems to be some mixed opinions on whether or not to tie earth ground to dc common. I always assumed everything...
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    That would mean I would need to isolate every...

    That would mean I would need to isolate every component from the panel. The gecko g540, Ethernet smoothstepper, dmm bob, etc. Should these really not be grounded to the cabinet? Also, doesn't the...
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    Re: Any pics of cnc control cabinets?

    Finally getting around to doing this. Question on dc power distribution. should I just ground all my dc power supplies to the panel, as well as ground all components needing dc power to panel, and...
  7. Any pics of mechanical chip breakers?

    I've seen a few posts about guys adding a steel or carbide chip breaker to inserted turning tools, usually to help break chips in aluminum. Having a hard time picturing what this should look like....
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    Awesome! Perfect

    Awesome! Perfect
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    It's a really quick easy change. Here's where I...

    It's a really quick easy change. Here's where I found it:
    https://forums.autodesk.com/t5/fusion-360-manufacture/disable-canned-cycles/td-p/5795297

    Just add the line directly below the...
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    Re: Pause after retract on g81 drilling

    yep, post edit worked fine. just had to add
    expandCyclePoint(x, y, z);
    return;
    after onCylcePoint and it expands canned cycles. havent run it yet, but its all G0 and G1 so im sure it did the...
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    Re: Pause after retract on g81 drilling

    looks like theres a post edit i can do. ill try it out
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    Good idea. I bet it would work perfectly, but I'm...

    Good idea. I bet it would work perfectly, but I'm not seeing it in the post options or in the cam options. The post options do have various "use subroutine" options but they are all set to no already.
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    Re: Pause after retract on g81 drilling

    heres an example

    G90 G94 G91.1 G40 G49 G17
    G21
    G28 G91 Z0.
    G90


    (DRILL3 4)
    M5
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    Pause after retract on g81 drilling

    When I use g81 for drilling a bunch of holes, it drills, retracts, then sits there for about a second before it moves to next hole. Seems insignificant, but when drilling hundreds of holes that only...
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    Re: Slightly sizing down a carbide drill

    So I ran the 4.305 bit in some holes. In one of my old cheap collets I got it chucked up with about 7 tenths runout. Worked great. 4.32 pin passes, 4.34 does not. Close enough. Not very scientific,...
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    Yeah, +/- .01mm diameter and round was a bit...

    Yeah, +/- .01mm diameter and round was a bit overstating. That's what id like to shoot for, but doesn't need to be quite that perfect. Let's say +/- .015mm. The holes that I interpolated with spring...
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    Whatever I do, it has to be quick and efficient....

    Whatever I do, it has to be quick and efficient. The ones I already did, I just interpolated with my 2mm cutter. It works, but it takes extra time to dial it in and also have to recheck every 50...
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    Yeah, for prototyping he may just have to put...

    Yeah, for prototyping he may just have to put some ca on them unless he wants to pay more for a special tool. Thing is, this insert is already used on many other models they already have. Large...
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    Yeah, that's the lower size I could find. He said...

    Yeah, that's the lower size I could find. He said at 4.3 it will be too tight and delaminate the cf when pressing in.
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    So far the other size drills I've used have given...

    So far the other size drills I've used have given a dead on hole size in the cf. Remember, these are only 10mm long flute carbide drills. Only slightly more than a half inch sticking out of the...
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    Slightly sizing down a carbide drill

    I have a job that will need about 150 holes drilled in 3mm thick carbon plate. The holes need to be 4.33mm +/- .01mm. It's right between common sizes of 4.3mm and 4.365mm. Normally I get my carbide...
  22. Increasing the chip load by either lowering rpm...

    Increasing the chip load by either lowering rpm or raising feed snaps the cutters even quicker. I think that's just the way those burr cutters are though. The amana tool has actual flutes on it
  23. But with a 3 thou chip using the new tool, will...

    But with a 3 thou chip using the new tool, will it really even be dust anymore? I would think it should at least be coarse enough to not go airborne

    Hmm, apparently they dont know how to do math....
  24. That tool looks very promising, just ordered a...

    That tool looks very promising, just ordered a couple. If it does what the feed/speed chart shows, I'll be 5 times as productive. Looks like it takes a different approach than the more common diamond...
  25. Re: Looking for some insight on machining carbon fiber sheets

    So it sounds like waterjet is the best way to do this, but since I can't do it that way, is there any way for me to improve my process? I'm considering investing in dust collection and trying it dry....
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