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Type: Posts; User: Karl_T

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  1. Replies
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    Does this happen to anyone else? Just looked...

    Does this happen to anyone else?

    Just looked all over for that box of NMTB 30 tooling. Its gone again.
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    I ran a Bridgeport series II with NMTB 30...

    I ran a Bridgeport series II with NMTB 30 tooling. Sold it ten years ago and forgot about the tooling, It re surfaced when I moved in a LeBlond lathe. Milady was going to ebay it, but no time so far....
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    read here 25hp 3pahse conveter with load center...

    read here
    25hp 3pahse conveter with load center | The Hobby-Machinist
  4. Replies
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    A three phase load center breaker panel is a...

    A three phase load center breaker panel is a GREAT idea. I did this for my son's shop.

    We treated this as a sub panel and ran the two hot legs from the single phase main to this. Each idler...
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    Thought you could see it in the pic. I undid the...

    Thought you could see it in the pic. I undid the line before and after the hydraulic unloader. put them into the solenoid valve. For under $25, this is a no brainer.

    Yep the motor/vfd goes on/off...
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    Quincy 350s - I just added VFD to mine a couple...

    Quincy 350s - I just added VFD to mine a couple months back so I wouldn't have to start the RPC to get air....
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    I'll repeat my suggestion. You got good iron,...

    I'll repeat my suggestion. You got good iron, good servos and likely good encoders. Everything inside the cabinet is 20 year old junk, likely broken. certainly not worth attempting find why it died....
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    Yep, you need to refit a new control. This is...

    Yep, you need to refit a new control. This is really the wrong forum for this sort of work.

    I suggest you head over to cnc zone dot com
  9. good idea Karl

    good idea

    Karl
  10. Replies
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    120 or 150 Hz is the very most you can spin a...

    120 or 150 Hz is the very most you can spin a regular 3 phase 1725 motor. And 7.5 hors is not going to have enough torque at low speeds.

    Two ways to go - bigger motor - or get a back gear. 10Hp...
  11. If your contactors are not big enough, its going...

    If your contactors are not big enough, its going to be easier to just gut that panel and start over. You'll re use nearly all the wire.

    Sure get any 5hp rated contactor. I'd suggest 110 coil. then...
  12. Ok, all that control is a pressure switch to a...

    Ok, all that control is a pressure switch to a relay...

    Re wire motor to low voltage.

    Now look at the pressure switch to relay coil. the voltage will be wrong here. More than one way to do it...
  13. Can you look at the motor itself and see if its...

    Can you look at the motor itself and see if its rated for 220? Many are dual voltage
  14. AA is dangerous sh*t. Take advantage of it...

    AA is dangerous sh*t.

    Take advantage of it sucking up water. fill, then drain the tank with water first.
  15. automation direct, for one, sells ten amp drives

    automation direct, for one, sells ten amp drives
  16. Yep, I'm sure those old BOSS steppers were at...

    Yep, I'm sure those old BOSS steppers were at least 10A at 48 volt.

    The step driver is going to be maintenance free - when it dies get another.
    For inputs your are going to have 110 VAC or...
  17. I ran an AHHA refit on a Bridgeport BOSS 3 in the...

    I ran an AHHA refit on a Bridgeport BOSS 3 in the 90s. The company went out of business back then. So, they've been done 20 years now. Their design was for DOS only and a parallel port to do IO.
    ...
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    Well the EEs have "undocumented program features"...

    Well the EEs have "undocumented program features"

    The rest of us call them bugs.
  19. Say Garwood, Are there any tricks to removing...

    Say Garwood,

    Are there any tricks to removing burned on carbon? I was hours and hours chipping it all out. I don't know how the compressor even ran but I bet they all look like that inside.
  20. I ended up getting a hold of that eBay vendor...

    I ended up getting a hold of that eBay vendor directly to get one for my rev unit. They were great to deal with, parts were perfect.

    Wish I had known that piston ring thing but my unit showed no...
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    I just looked this up, 17% ethelene glycol -...

    I just looked this up, 17% ethelene glycol - antifreeze 17%. Just use the stuff from any big box store.
  22. I have a old Quincy 350. For the rotating...

    I have a <VERY> old Quincy 350. For the rotating bottom end, forever is a good number.

    After only about forty years, I did have to go though the head mostly to clean years of carbon build up,...
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    you might want to look into this for do it...

    you might want to look into this for do it yourself. Caswell, among others has the nickel solution
    Electroless nickel plating - Wikipedia
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    My spot welder needs a new control also. The...

    My spot welder needs a new control also.

    The amps setup is a very old switch arrangement, it just needs a good cleaning and a bit of TLC

    To switch in the load, I plan to go with a pair of 100...
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    Picked up the exact same machine for $750 at an...

    Picked up the exact same machine for $750 at an auction two years ago. I had a very old Lincoln ideal arc. sold it for $500.

    Thought I died and went to heaven, my welds got that much better.

    My...
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