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  1. It may not be the spindle taper that is...

    It may not be the spindle taper that is generating the marks. I could be irregularity in the roundness of the toolholder.
  2. I have never replaced those gears, just worked...

    I have never replaced those gears, just worked with them when changing ballscrews, and thrust bearings.

    What is the reason for wanting to switch to a different motor? Yaskawa motors are very...
  3. IDK, I found NX to make more sense to me than...

    IDK, I found NX to make more sense to me than MCX. Then I watch my son mess around with some flavor of HSM he uses and see some of the weird code it makes and I keep thinking how much nicer NX is. ...
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    Something on the lines of 25-30 years ago I...

    Something on the lines of 25-30 years ago I helped a customer get an API thread going. On the drawing there was a note about gaging the thread and that there needed to be a minimum of 2 turns lead...
  5. I am constantly amazed at how good, capable, and...

    I am constantly amazed at how good, capable, and easy CAM has become. Despite that, I still think it is a big hurdle to expect that something like a one click to program even a waterjet profile is...
  6. The gears are very precise and need a tiny bit of...

    The gears are very precise and need a tiny bit of clearance. The black ring you show in one of your picture is an eccentric. On assembly, you adjust that ring with the motor mounting bolts lightly...
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    Absolutely right. I saw this a lot when I worked...

    Absolutely right. I saw this a lot when I worked for a couple different dealers. Small customers, and particularly previously unheard of potential customers (start ups), often got back burner...
  8. Probably get more help on a different forum like...

    Probably get more help on a different forum like CNC Zone. Not many here work with cobbled together stuff.
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    I think that for many MTBs the reluctance to post...

    I think that for many MTBs the reluctance to post online pricing comes from how their dealer network is structured. It has to do with what price the dealer pays for the machine. A full servicing...
  10. The Okuma is a real machine. The Toymach, not so...

    The Okuma is a real machine. The Toymach, not so much. Without knowing what you want to make with a VMC it is really tough to say whether or not the Toymach would be a reasonable choice.

    I...
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    Rather than use some kind of boring gizmo to bore...

    Rather than use some kind of boring gizmo to bore through jaws, I have always just used a thin plug at the back of the jaws. Bore down to the plug to the size I want, then remove the plug and...
  12. Thread: Angle Plane

    by Vancbiker
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    603

    For starters, G68 is an option that not all...

    For starters, G68 is an option that not all machine builders or buyers spec. Have you tried it to see if the control generates an alarm? You can just use MDI and key in G68 X0 Y0 R90. input and...
  13. Any mass produced product will have some parts...

    Any mass produced product will have some parts that work with 30 taper. Most powertrain parts don't though.
  14. Fixed this for ya.

    Fixed this for ya.
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    When I was working on an NX post, I ran my code...

    When I was working on an NX post, I ran my code through several different posts to look at the output. When I found one that sort of did what I thought I wanted, I copied and pasted the section into...
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    IMO it is much more important to evaluate each...

    IMO it is much more important to evaluate each potential machine on the condition they are in. I'd far prefer an off-brand in decent shape with all its documentation over a thrashed big name machine...
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    Ahhh, wouldn't that be lovely.

    Ahhh, wouldn't that be lovely.
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    There is a sub-forum here dedicated to this...

    There is a sub-forum here dedicated to this subject.

    https://www.practicalmachinist.com/vb/transformers-phase-converters-and-vfd/

    Might post your questions there for best advice.
  19. Thread: Doosan

    by Vancbiker
    Replies
    23
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    2,187

    Very few builders make their own controls and...

    Very few builders make their own controls and drives. Most Asian machines are built around Fanuc or Mitsubishi hardware. Many have implemented their own U/I, but under it, is Fanuc or Mitsu...
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    The reason it won't pick up the same lead when...

    The reason it won't pick up the same lead when you change the speed from one pass to the next...

    The motion of the Z axis is held until the one revolution mark of the spindle is "seen". Z motion...
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    I'm amazed that the answer to this is not...

    I'm amazed that the answer to this is not obvious.....

    On your VMC, when rigid tapping, the spindle and Z both start synchronized motion from zero speed. The lathe is starting the Z motion while...
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    This has to set a record for the most OT thread...

    This has to set a record for the most OT thread ever posted here!
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    I have a grease lubed machine so very minimal...

    I have a grease lubed machine so very minimal lube gets into the coolant. I used to get a heavy brown goo layer on my coolant though and figured it was from my well water (hard and notable iron...
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    Not in all cases with a machining center. ...

    Not in all cases with a machining center. Depends on control make and machine builder and potentially the actual CNC code being used. Control parameters or builder's ladder program need to be set...
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    Fixed for ya.

    Fixed for ya.
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