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Type: Posts; User: bit pusher

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  1. Replies
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    Re: ball screw nut replacement

    Going from memory here, X-axis had something like 0.007 backlash, Y and Z were around 0.002 or less.
    I will double check the values this evening for X axis.
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    Re: ball screw nut replacement

    Hi guys, I traded mail with Tommy. He said the ballscrew was 3/4" diameter and pitch of 0.5".
    He mentioned the ball nut manufacturer was Lee Linear but didn't have part numbers.
    Their website...
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    ball screw nut replacement

    Hi guys, the ball screw nut on my X axis makes a little clicking noise. I think its due for replacement.
    Anyone know what make/model ball screw nuts Tommy was using, or if these are details are...
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    Re: left handed tools in the lathe turret?

    Thank you Jim, I appreciate the pointers. I struggled with the left/right tooling until I found this diagram and then it made sense.
    https://i.imgur.com/hmMhDNF.jpg

    I just saw your location as...
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    Re: left handed tools in the lathe turret?

    Thanks guys!
    AutomateCNC tells me the turrets are setup for 20mm lathe tooling, can you guys recommend a place to get a good tool set? Assume I'm starting from zero and need a little of everything...
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    left handed tools in the lathe turret?

    Hi guys, can anyone confirm that this video has left handed tooling in the turret?
    I'm new to this and am trying to avoid getting the wrong tools.


    https://www.youtube.com/watch?v=Gv1-JriM1fQ
    ...
  7. Re: ARGH! backlash killing parts! Anyone have some info?

    Did you get this resolved? what was the issue?
  8. Re: Does anyone actually make an add on ATC for bench top Mills? or even plans?

    Hi, Ive got an IH/Charter-Oak mill and was wondering if you were able to upgrade with the Skyfire kit?
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    Re: lifting the mill?

    Hi guys, I rented a fork lift and repositioned the mill onto its table. Worked like a charm and far safer (in my opinion) and less stressful than using an engine hoist.
    I had a komatsu fork lift...
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    Re: 5000 rpm option on FL300-II

    Hi guys, I'm still researching this.
    I'm led to believe that the specs on the website are not 100% accurate.
    Can any actual owners comment on what the true dimensions are?
    The website states:...
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    Re: 5000 rpm option on FL300-II

    Thank you for the advice.

    Can a 5C chuck system be upgraded at a later date to a hydraulic 3-jaw chuck?
    Though it may not matter if I'm theading 2" thin walled steel or titanium as the through...
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    Re: 5000 rpm option on FL300-II

    I'm new to CNC lathes, so please bear with my noob question!
    Can the pneumatic 5c collet chuck handle 5k?
    My intent is to cut parts 2" and under, I wanted to use step collets.

    I was thinking...
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    Re: 5000 rpm option on FL300-II

    Looks very similar to the ones sold by Smithy, probably another Z-Mat made lathe?
    I think with the turret the pricing is very close.

    I'm leaning towards the Smithy FL300-II as they're local to me...
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    5000 rpm option on FL300-II

    I'm looking to get one of these cnc lathes in the next couple of months (probably after the winter deep freeze), currently leaning towards the FL300-II
    Did anyone here spring for the 5000 rpm...
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    Re: lifting the mill?

    I talked to Tommy last night. Always enjoyed chatting with him. He's doing well and is enjoying his new job.

    He mentioned that he used to use a fork lift to move these mills around his shop.
    The...
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    Re: lifting the mill?

    Thanks for the reply.
    I'm trying to lift my IHCNC / Charter Oak cnc mill, it weighs like 1k pounds or maybe 1.1k at most.
    I suppose I'd have to use tow straps with the fork lift if I try to lift...
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    lifting the mill?

    Hi guys, I moved recently and need to lift the mill off its pallet.
    In the past I've borrowed a friend's engine hoist and a heavy tow strap, while it worked it was a bit of a scary procedure and...
  18. 3D profiling: what settings for accelleration on axes

    Hi guys, Im doing 3D profiling, I've found that if I raise the accel on the Y axis to 15 in/sec^2 while doing a back and forth planar cut I start to hit rigidity issues with the frame and head...
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    Re: seeking advice: head removal

    I resolved three problems with my mill in the past 2 days:

    1. Binding in the Z Axis while lowering the head: After I had the head off I lowered the slide as much as possible. I ran my finger up...
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    Re: seeking advice: head removal

    Got the head off cleanly. The wooden "platform" I made is holding it pretty snug. It separated from the slide on the column with no stress and seemingly no effort.
    I can now get an unobstructed view...
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    Re: seeking advice: head removal

    Thanks for the reply. I talked to Paul at Charter-Oak, he suggested similar. His advice was to get eye-bolts threaded to match the t-slot nuts and rope it down.
    I made a wooden saddle of sorts to...
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    seeking advice: head removal

    I'd like to tighten up my z-axis ball nut mount. I dont want to remove the whole assembly from the column, just the large housing for the motor and spindle assembly, essentially everything forward of...
  23. Re: limit switches and ethernet smooth stepper?

    One of the switches had a tiny sticker so I could dig up some specs. It's NPN, normally open, with internal pull up and a little LED inside. I miscounted, it has 3 wires (no idea why I thought 4!),...
  24. Re: limit switches and ethernet smooth stepper?

    OK, found some docs on machmotion's site:
    http://machmotion.com/documentation/Motion%20Controllers/Apollo%20I/Apollo%20I%20User%20Manual.pdf

    That shows how the wiring should be done for inputs on...
  25. Re: limit switches and ethernet smooth stepper?

    I dug around in the mach configs and found that only z-home is even enabled, it seems to be assigned port 3, pin 13. X and y dont have pins assigned. I'll assume I can just pick a couple of input...
  26. limit switches and ethernet smooth stepper?

    Hi guys, my machine dates back to 2013, I think its one of the last ones Tommy put together. On mine he used the mach motion motors, electricals coupled to an ethernet smooth stepper. Everything...
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    Re: Which params to change on VFD for > 60Hz ?

    Thus far my changes have been limited to param125 to 80Hz (this one controls max frequency at max analog input across the potentiometer).
    I also set pr250 to 0 which enables the coast to stop after...
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    Re: Which params to change on VFD for > 60Hz ?

    This is the first time I've made changes to the VFD, so I'm a little skittish about making alterations to IH / MachMotion's settings as they've got far more experience at it.
    Is there anything that...
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    Re: Which params to change on VFD for > 60Hz ?

    If I disable regen-braking completely, it will accept pr8 ?
    I suppose I should disable the coast-to-stop on pr250 too :)

    Time to dig through the manual to see exactly how to disable...
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    Re: Which params to change on VFD for > 60Hz ?

    Thanks guys. I did try setting the deceleration time last night, I bumped it up to 15s (from 10s) but the parameter had no effect on the braking.
    I think the existing braking resistor is the correct...
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