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  1. Replies
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    Years ago, maybe 15 years ago, I bought a 30 hp...

    Years ago, maybe 15 years ago, I bought a 30 hp rotary off an outfit in Birmingham, AL. I have 80 yds of buried 300 MCM off the pole. It is fused with 75 amp motor starting fuses and has never blown...
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    13,706

    Hey Boris, forget the cookie: I'll take a crab...

    Hey Boris, forget the cookie: I'll take a crab salad, thank you. :-)
  3. Replies
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    1,069

    Not quite; local? no but only 175 mi away. This...

    Not quite; local? no but only 175 mi away. This was something I did entirely on my own. I'd like to say .. great minds ...

    More like even a blind pig finds an acorn once in a while.
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    1,069

    Go buy some modeling clay. Put a dabs between the...

    Go buy some modeling clay. Put a dabs between the jaws and the parallels. Put a block between and tighten down. Sticks rather well.
    Or just tighten down on the vise. Open it up, add material, clamp....
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    The best programs are written by a team of...

    The best programs are written by a team of programmers and application people (users).
  6. Replies
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    1,218

    I like the ideas various people have tossed out....

    I like the ideas various people have tossed out. Ni plating is really cute but requires a rather good analytical balance to execute.
    The thermal probe is going to give you an exponential curve to...
  7. The configuration you have is not exactly wimpy!...

    The configuration you have is not exactly wimpy! Simply increasing number of cores and speed is unlikely to get you even close to an order of magnitude jump in performance. I suspect it comes down to...
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    1,067

    There are 16's out there for a LOT less money....

    There are 16's out there for a LOT less money. Of course one really doesn't know condition. ;-)
    I trust you have a good 3 ph lead into your building. Thirty amps or more of 3 phase is significant....
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    An R8 is essentially equivalent to an BT30 in...

    An R8 is essentially equivalent to an BT30 in gage dia and therefore stiffness. The 30 taper will allow you to gage tool length off the machine, i.e. preset tools. Reduces the fuss if you use...
  10. Emailed a friend of mine that was doing comms in...

    Emailed a friend of mine that was doing comms in fruit warehouses. Long runs.
    Here is his reply with come editing.

    "The long runs I did were RS-485, not RS-232. You may be right about it being...
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    Hi, A couple of things come to mind. Grab a...

    Hi,
    A couple of things come to mind. Grab a battery box: often a 9V battery with a pot (adjustable resistor) and a switch to reverse polarity. Lift the input to the servo amp and attach battery box....
  12. Not knowing the price that was my thought. The...

    Not knowing the price that was my thought. The Tormach uses linuxcnc.I don't like the Axis interface. A machine control should look like it is on a machine ... not a VCR. However, the underlying...
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    It's hell communicating when your native language...

    It's hell communicating when your native language is not English. At least he is trying.
    This might go better is the OP (original poster) has a good conversation with a local and then re-posts.
    ...
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    I do know a guy that did a linuxcnc install on...

    I do know a guy that did a linuxcnc install on his 10EE. PM me if you want his email.
  15. I don't have any experience at the micro level....

    I don't have any experience at the micro level. 6061-T6 usually cuts well but YMMV.
    I avoid aluminum just because it is easy to fuse it to the cutter. When it works it works well, nice finish, easy...
  16. This sounds interesting and challenging. I...

    This sounds interesting and challenging. I suspect most of the protocols are serial so writing an isr to sniff ('Y' cable) is only an evenings project. Getting passwords may be another problem. If...
  17. Replies
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    5,081

    Joh Hunting is always interesting and stressful....

    Joh Hunting is always interesting and stressful.
    I was told by a former boss, "after your first job no one looks at your GPA", they want to know what you've done.

    I'd hire someone with an ME...
  18. Replies
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    1,737

    Good point on material. Indeed the machine cuts...

    Good point on material. Indeed the machine cuts Al much better than steel but I pretty much live in a world of steel. A bit of O1 and 4140 but mostly A36 for first try and 8620 for real and hours...
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    Ah! Mea culpa. Or as I heard many time as a...

    Ah! Mea culpa. Or as I heard many time as a child. "The best laid plans of mice and men gang aft a-gley.. I clearly take in in the neck for not being explicit enough. So ... more words. The slotting...
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    1,737

    Stiffness of small mill

    Hi all,
    At present I'm limping along doing prototyping on a Cincinnati contourmaster (tracer with ball screws) converted to servos. The spindle has had new bearings once that I know of, 10-12 years...
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    Just to put this in perspective. alcohol ...

    Just to put this in perspective.

    alcohol Flash point OSHA vapor limits (8 hr)
    methanol 53 F 200 ppm
    ethanol 62 ...
  22. Replies
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    6,298

    Hi, If your servo motors are good and you have...

    Hi,
    If your servo motors are good and you have high res encoders then you are half-way there. Rule of thumb ... you need 5x the resolution on your encoders relative to the accuracy you need to...
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    Implicit in all of this is a decent computer but...

    Implicit in all of this is a decent computer but a good video card. Gaming has done good things for video. Performance that used to cost $25K is now rather inexpensive.
  24. I like the idea of stable and semi-isolated. With...

    I like the idea of stable and semi-isolated. With a good cable modem between me and my isp I've not had any problems. Knock on wood.

    BTW a major corporation just switched to Macs. Cost of...
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    The holiday season is a bad time to be in a rush....

    The holiday season is a bad time to be in a rush. Employees take time off. Stuff goes missing or gets rerouted in shipment.
    Hope your cutter situation resolves itself.
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