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  1. #21
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    Quote Originally Posted by Diesel_Pilot View Post
    The one on top holds a tool eye. The ones on the bottom, are probably for securing a lever for an optional manually actuated collet chuck. These can be removed, but will expose the inside of the spindle, so should be cleaned.
    thanx, I will replace them after I remove the shield to keep anything from getting into the spindle. thanx for the reply

  2. #22
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    I simple greened everything, then pulled the two axis. I want to clean the metal back to silver and I dont want my compound in the dovetail slots so I pulled everything to do the polishing on the bench. ball screws feel a little notchy, but they are not on the grease circuit, they have pressure grease ports but they are manual. Im hoping its just a lack of lubrication as the ball screw looks clean
    Attached Thumbnails Attached Thumbnails IMAG3471.jpg   IMAG3472.jpg   IMAG3473.jpg  

  3. #23
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    I found a turret control PCBA design built for linuxcnc using the custom board and an arduino. Its called the "toolerator 3000". this is pretty much what I had planned to do myself. Props to the author for the open source. I will need to change over the linuxcnc code to mach3 code, but the skeleton of the code is there and I think it is enough to have the framework to make it work. the link is here If someone has already adapted this setup to mach3 please let me know, I will also try to get some help over at the artsoft site. This looks like a huge time saver for me.

  4. #24
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    A note for those wanting to use the Vexta drives. I did not receive connectors with my motor controllers. these are expensive connectors!. part numbers are Phoenix Contact. 3 position 1792252, 5 position 1792278, and 9 position 1792317. I got them from Mouser, Digikey did not have all three.
    Attached Thumbnails Attached Thumbnails IMAG3477.jpg  

  5. #25
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    I installed KiCAD on my computer and opened the design files for the Toolenator3000 PCB. Exported gerbers and netlist from KiCAD and sent them to a proto board house. I should get 10 bare Toolenator3000 pcb's in a few weeks.

  6. #26
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    5hp 3ph motor is mounted
    Attached Thumbnails Attached Thumbnails IMAG3478.jpg  

  7. #27
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    here's a CAD of the Toolenator 3000 PCBA. I'm working to identify all of the components to create a costed BoM
    Attached Thumbnails Attached Thumbnails CAD TOOLENATOR 3000.JPG  

  8. #28
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    motor pulley mounted and aligned, x and z axis in the cooker. The BoM for the toolerator 3000 pcba is figured out (mostly) and I should be getting bare PCB's delivered tomorrow DHL.
    Attached Thumbnails Attached Thumbnails IMAG3482.jpg   IMAG3483.jpg   IMAG3484.jpg  

  9. #29
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    reassembled the x-axis slide, the oiler lines, and the z-axis slide. completed the Toolerator 3000 BoM and ordered 2 sets of parts from Digi-Key and Mouser. I also ordered a chinese solder station, looks ok, we will see. Certainly should be better than the radio shack one I have had for years.

  10. #30
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    woohoo pcb's are here
    Attached Thumbnails Attached Thumbnails IMAG3491.jpg  

  11. #31
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    also got a little work done on the lathe. got ball screws and stepper mounts attached tonight for both axis
    Attached Thumbnails Attached Thumbnails IMAG3494.jpg  

  12. #32
    Join Date
    Oct 2012
    Posts
    393

    Re: Emcoturn 120 retrofit

    Hi
    Welcome to the club of Emco owners, I do not know did you cleaned ballscrews (all the way to the balls), I wanted to tell you it is not complicated, I found in mine lot of dirt (metal chips) so they are pretty damaged

    https://youtu.be/9GJcuLVlv5g?t=15m16s

    and new one are expensive x and z axis 950 Euro plus VAT.

    You can rewind video to 15 minute , from there starts interesting part.

    Looks like you will be soon done with conversion

  13. #33
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    I looked at the screws and they did not have damage as shown in your excellent video. The notchiness seems to only be present if the screw is completely unloaded, with any pressure at all they are smooth, so I did not want to chance taking them apart with the screw showing no issue. I oiled the shaft and put it all together, they are not hard to remove so worst case I will remove them later if there is any issue.

  14. #34
    Join Date
    Oct 2012
    Posts
    393

    Re: Emcoturn 120 retrofit

    Quote Originally Posted by CincyTJ View Post
    I looked at the screws and they did not have damage as shown in your excellent video. The notchiness seems to only be present if the screw is completely unloaded, with any pressure at all they are smooth, so I did not want to chance taking them apart with the screw showing no issue. I oiled the shaft and put it all together, they are not hard to remove so worst case I will remove them later if there is any issue.
    OK, ballscrews need to be greased, I do not know which type of grease , I used one for ball bearings . Oil is better then nothing but will drip from shaft . Keep good work, if you have any questions will try to help you.

  15. #35
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    Quote Originally Posted by zmajmr View Post
    OK, ballscrews need to be greased, I do not know which type of grease , I used one for ball bearings . Oil is better then nothing but will drip from shaft . Keep good work, if you have any questions will try to help you.
    from this (page 9) im going to get this superlube because I cant find any of the nye products listed and get this Amazon.com: Astro 101 Mini Grease Gun with Needle Nozzle: Home Improvement to deal with the flush grease fittings

  16. #36

  17. #37
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    thanx, I went and looked closer at the superlube and it is NLGI #2 rated. could have got some others cheaper but this one is on the way already.

  18. #38
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    got the toolerator 3000 pcba built but not tested. still need to get a 24vdc power supply and the turret reassembled
    Attached Thumbnails Attached Thumbnails IMAG3514.jpg   IMAG3516.jpg   IMAG3517.jpg  

  19. #39
    Join Date
    Apr 2007
    Posts
    68

    Re: Emcoturn 120 retrofit

    the Dell FX170 arrived today as well as the ball screw grease, 24vdc, 5vdc power supplies and the small rj45 BOB.
    Attached Thumbnails Attached Thumbnails IMAG3518s.jpg   IMAG3519s.jpg   IMAG3520s.jpg   IMAG3522s.jpg  

    IMAG3525s.jpg   IMAG3526s.jpg  

  20. #40
    Join Date
    Jun 2013
    Posts
    15

    Re: Emcoturn 120 retrofit

    Hello
    Good to see another Emco CNC lathe under restoration.
    Similar project here: I am working on a Machinekit retrofit for a 120P.
    Currently I am finalizing the control panel and the PLC software.
    Emco Turn 120P | F1OAT CNC experiments
    Frederic.
    http://cnc.f1oat.org/

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