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  1. #1
    Was playing in fusion only took 40 mins but not sure how I'd drive the long axis, I think needs to be R&P but have no idea how to set up a dual pinion anti backlash setup. The other choice 2* 2.7m 2510 ballscrew's with rotating ballnut's as at the length it's going to be a skipping rope if I try and rotate the screw.

    Does anyone know how I invert the axis in linuxcnc? Using the beta dual ballscrew on the Y so need to edit the hal or .ini to do it as the wizard doesn't support dual motors.
    Click image for larger version. 

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    Alright Fusion buffs when I copy an object how do I break the association so my edits to the new object do not effect the original?
    Last edited by Desertboy; 16-12-2017 at 03:33 AM.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  2. #2
    Man, do i need to brush up on Fusion, 40 minutes? would have taken me a week :) Thats if i could figure out where to start

  3. #3
    Does anyone know how I invert the axis in linuxcnc? Using the beta dual ballscrew on the Y so need to edit the hal or .ini to do it as the wizard doesn't support dual motors.
    Dave

    For twin screws you need Linuxcnc V 2.8 master if you want independent homing. I you want to reverse on of the motors then you can just swap the phases around on the motor.

    What version are you using?
    ..Clive
    The more you know, The better you know, How little you know

  4. #4
    Quote Originally Posted by Clive S View Post
    Dave

    For twin screws you need Linuxcnc V 2.8 master if you want independent homing. I you want to reverse on of the motors then you can just swap the phases around on the motor.

    What version are you using?
    It's not Dave it's me ;) I'm using the beta I've enabled the master repositories so should be bang up to date, it's does read 2.8 something on boot.

    I was hoping it was just an option in the ini to invert them you can do it from the stepconf but that's no good for setting up dual ballscrews.

    I guess swap the wires around will be the easiest solution.

    My brother asked me what I want for Xmas was going to ask for a 3nm nema 23 which I'll fit to the gantry and swap the 2nm from the gantry to the Z.
    Last edited by Desertboy; 16-12-2017 at 02:16 PM.
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  5. #5
    It's not Dave it's me ;) I'm using the beta I've enabled the master repositories so should be bang up to date, it's does read 2.8 something on boot.

    I was hoping it was just an option in the ini to invert them you can do it from the stepconf but that's no good for setting up dual ballscrews.

    I guess swap the wires around will be the easiest solution.
    Sorry Me Can you post your ini and hal files and I will take a look, you can invert them in hal. I am In Spain again but back on Tuesday but I might be able to do it from here.
    ..Clive
    The more you know, The better you know, How little you know

  6. The Following User Says Thank You to Clive S For This Useful Post:


  7. #6
    Quote Originally Posted by Clive S View Post
    Sorry Me Can you post your ini and hal files and I will take a look, you can invert them in hal. I am In Spain again but back on Tuesday but I might be able to do it from here.
    Enjoy the sangria & sunshine ;)
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  8. #7
    Got my MDF bed on now I need to make it a vac bed ;)

    I used an 18mm sheet
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  9. #8
    Quote Originally Posted by Desertboy View Post
    Got my MDF bed on now I need to make it a vac bed ;)

    I used an 18mm sheet
    Pics or it didnt happen :D

    Skickat från min SM-G955F via Tapatalk

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