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  1. Replies
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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.
  2. 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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    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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    I think you are talking apples and oranges. :-)...

    I think you are talking apples and oranges. :-) Mach, Linuxcnc and Centroid are cnc software not CAD/CAM. Having said that I run Linuxcnc on a Cinci contourmaster (tracer) converted to servos and on...
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    Good troubleshooting and diagnostics beats board...

    Good troubleshooting and diagnostics beats board swapping any day. Like the guy said; get competent help.
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    Any thing you get with cnc will be a serious step...

    Any thing you get with cnc will be a serious step up from your present mill. I have a well used Cinci contourmaster. 1960 vintage but went from Boeing to a trade school which got it upgraded to cnc...
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    I'm partial to shrink fits rather than press. Of...

    I'm partial to shrink fits rather than press. Of course that really means you need the shaft out of the machine. ;-)
    The coeff of thermal expansion for bronzes (tin bronzes) which seem to be...
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    Those look pretty standard. Try a Digikey or...

    Those look pretty standard. Try a Digikey or Allied catalog. There are probably several distributors/dealers within a few miles of you....like 50. The blue Honda connectors are probably harder to...
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    Servo Dynamics is good stuff. 15A with 25A peaks....

    Servo Dynamics is good stuff. 15A with 25A peaks. 164 VDC max. That is 3 channels of 1525 so new price is about $325/ch. It looks to have the integral power supply also.
    I have 3 newer 1525's on a...
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    https://www.solaris-shop.com/content/American%20Wi...

    https://www.solaris-shop.com/content/American%20Wire%20Gauge%20Conductor%20Size%20Table.pdf
  12. Replies
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    Take a look at linuxcnc. Free, downloadable. Lots...

    Take a look at linuxcnc. Free, downloadable. Lots of help by forum or irc. Servo or steppers. Runs everything from sherline to rather decent sized machines. Tuning (servo) has P, I, D, FF0, FF1 and...
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    I have a friend that is the right age to have...

    I have a friend that is the right age to have been in shops when not every shop had cnc. They bought one and still quoted jobs as if there were still on manual machines. Until the competition...
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    Shots in the dark. ;-) Not even a SWAG hold...

    Shots in the dark. ;-) Not even a SWAG

    hold in low melting pt alloy, eg. Chamber Casting Alloy Ingot aka low 158-190F - RotoMetals

    Of course you have to keep it cool; not always easy.

    I...
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    Motion Control Interfaces...

    Motion Control Interfaces
    This guy has done a bit on Fanuc encoders. YMMV
  16. reed relays are a cute idea since speed is not an...

    reed relays are a cute idea since speed is not an issue. Mazak a few years later (~1983) went with prox switches and big holes to match but still bcd. With rare earth magnet reed switchs are a no...
  17. Mildly off topic but anyway ... nice...

    Mildly off topic but anyway ... nice pictures...actually nicely scaled and in focus. :-)
  18. When I did my 3 phase installation switching over...

    When I did my 3 phase installation switching over from a 5 hp home-built to a commercial 30 Hp I was going to go with a 25 Hp but the supplier suggested a 30. He was willing to supply a 25 but if it...
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    Just to be picky or pedantic: with X, Y and Z the...

    Just to be picky or pedantic: with X, Y and Z the normal axes for a vertical mill then the rotary associated with the X is A, in like manner Y & B and Z & C. W is movement of the table either closer...
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    Unfortunately, the title is off by ~10 times but...

    Unfortunately, the title is off by ~10 times but then orders of magnitude only count is paychecks. :-)
    It is not that none of us make mistakes but a spell checker and proofreading are both handy.
    ...
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    4140 normalized. Rc 30 not gummy. If that is not...

    4140 normalized. Rc 30 not gummy. If that is not hard enough then heat-treat.
    8620 somewhat gummy but case about 40 deep and quench in oil and they should last forever. ;-)
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    Being a lazy old grump I'd try the easy way...

    Being a lazy old grump I'd try the easy way first. Assuming you have a CAD/CAM that does a good job of importing .dxf. Import the file(s) then export with a Haas post. 2D should be a cinch.
    Note:...
  23. Thread: MDA Precision

    by ss_user
    Replies
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    1,930

    My first impression is a " Sherline on steroids"....

    My first impression is a " Sherline on steroids". Orders of magnitude difference between that and a Haas but then orders of magnitude only count in paychecks. ;-) How much of the claimed spindle...
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    Optical encoders are usually bandwidth limited by...

    Optical encoders are usually bandwidth limited by the speed of the opto sensor. FO is nice stuff. Expensive electronics on both ends of the cable but error rates are one in E-12. Even the multi-mode...
  25. XOn and XOff is the flow control to keep the...

    XOn and XOff is the flow control to keep the buffer from overflowing but since you have it working you probably don;t care. :-)
    Good job anyway. DB9's are SO much fun to solder. :-)
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