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  1. Replies
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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
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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
  7. 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...
  8. Mildly off topic but anyway ... nice...

    Mildly off topic but anyway ... nice pictures...actually nicely scaled and in focus. :-)
  9. 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:...
  14. Thread: MDA Precision

    by ss_user
    Replies
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    1,891

    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...
  16. 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. :-)
  17. Fadal G Code M Code Quick Reference pdf - CNC...

    Fadal G Code M Code Quick Reference pdf - CNC Manual
    sometimes google is actually useful. ;-)
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    Good Grief Charlie Brown. You work with machines...

    Good Grief Charlie Brown. You work with machines everyday that can kill or maim you. Just a bit of inattention. There is a good reason pinch points on machines are labeled. I have a friend that...
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    That 'wonderful' smell is most likely from...

    That 'wonderful' smell is most likely from volatile fatty acids. The peroxide made the coolant oxidizing and anaerobic bacteria can't survive.
    3% H2O2 is rather innocuous however 30% is nasty stuff....
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    Ethernet to machines is indeed nice. I run about...

    Ethernet to machines is indeed nice. I run about 100' of cat5 from my desktop (CAD-CAM) to my machines. Two hops: the switch near the desktop and a small switch in the shop.
    For a direct connection...
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    Well if you want pretty google Steve Earle ...

    Well if you want pretty google Steve Earle
    Fraser Action
    Lots of care and hand polish ....$$$$

    I might have it all wrong but the part seems to be made for a C axis or for a lathe.
    Just my...
  22. Thread: Clod Computing

    by ss_user
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    My opinion: cloud is great for backup and...

    My opinion: cloud is great for backup and somewhat more reliable than the usual local system. How ever being paranoid ... I'm not, I'm not, I'm not. :-) My feeling is that the cloud should be used...
  23. Thread: Thread Chatter

    by ss_user
    Replies
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    Tape shim is a good idea but I'd go with a strip...

    Tape shim is a good idea but I'd go with a strip of soda can as a shim. Especially with jaws that leave marks on the work.

    Resonance is a bitch; ever try pushing a person on a swing not pushing...
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    Not really on your list but I used a home-built 5...

    Not really on your list but I used a home-built 5 hp rotary phase converter for several years but finally bit the bullet and got a 30 Hp commercial rotary. The lights blink when I start the converter...
  25. Nothing is impossible to the person that doesn't...

    Nothing is impossible to the person that doesn't have to make it work. :-)

    I've heard of shops normalizing 4xxx steels before machining.
    Laser cut does not sound like a good idea, 4340 is...
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