Page 4 of 6 FirstFirst ... 23456 LastLast
  1. #31
    Wish me luck boys!
    It's coming along nicely Mike keep up the good work looks like you will have a nice machine
    ..Clive
    The more you know, The better you know, How little you know

  2. #32
    Thanks Clive for your kind comments.

    I've uploaded a YouTube video here showing the gantry moving in all axes at a magnificent speed of 1 metre/min!

    Now that I've worked out how soft limits and emulated home switches work, I'll post a video of it working with a piece of real G-Code doing air cuts at this stage.

  3. The Following User Says Thank You to MikeyC38 For This Useful Post:


  4. #33
    Hi, I have a quick question how are you finding having one Y axis with the cut quality you are getting, i am at the stage now where i am thinking for the first machine i will keep it at one for now, so i don't need to worry about belts driving two ballscrews etc. If you had your time again would you use Two steppers / or belts or do you find having a single Y axis drive centered is working for you?

    Kind Regards
    Sherpa

  5. #34
    Quote Originally Posted by Sherpa View Post
    Hi, I have a quick question how are you finding having one Y axis with the cut quality you are getting, i am at the stage now where i am thinking for the first machine i will keep it at one for now, so i don't need to worry about belts driving two ballscrews etc. If you had your time again would you use Two steppers / or belts or do you find having a single Y axis drive centered is working for you?

    Kind Regards
    Sherpa
    It all depends what you want to cut with the machine and how wide it is how it is built etc.. There are pro's and con's using one or two motors that has been debated many times on here.
    ..Clive
    The more you know, The better you know, How little you know

  6. #35
    Quote Originally Posted by Sherpa View Post
    Hi, I have a quick question how are you finding having one Y axis with the cut quality you are getting, i am at the stage now where i am thinking for the first machine i will keep it at one for now, so i don't need to worry about belts driving two ballscrews etc. If you had your time again would you use Two steppers / or belts or do you find having a single Y axis drive centered is working for you?

    Kind Regards
    Sherpa
    Which to use or how well one works over the other moslty depends on the width of machine and like Clive mentions what your cutting.
    The cut off point for me is anything wider than 600mm cut will bennifit from twin screws/belts. 600-400mm is open to usage to which is best. Less >=400 then single screw is fine unless mostly cutting Non ferrous metals then I'd go twin every time.

  7. The Following 3 Users Say Thank You to JAZZCNC For This Useful Post:


  8. #36
    Quote Originally Posted by Sherpa View Post
    Hi, I have a quick question how are you finding having one Y axis with the cut quality you are getting, i am at the stage now where i am thinking for the first machine i will keep it at one for now, so i don't need to worry about belts driving two ballscrews etc. If you had your time again would you use Two steppers / or belts or do you find having a single Y axis drive centered is working for you?

    Kind Regards
    Sherpa
    Hi Sherpa
    I don't know about the cut quality yet -still fiddling with basic calibration and wanting to fit Jazzcnc's relay based e-stop system before really "going" for it. There may be some racking issues but if I cut in the centre of the board, this should reduce it. I guess if (or most probably when!) I do this again , then twin 1610 ballscrews, belt driven (avoids problem of twin steppers de-synchronising but I don't want to start a flame war here!!!) 68v stepper drivers and a different design for the gantry and precision profiled rails. But I'll wait and see how I get on with this one. It's taken me long enough to get to this stage!!!

    I have to admit I'm impressed with the current stiffness of the gantry but cutting will be the true test.

    Regards
    Mike
    Last edited by MikeyC38; 05-10-2016 at 09:28 PM.

  9. #37
    Quote Originally Posted by MikeyC38 View Post
    Thanks Clive for your kind comments.

    I've uploaded a YouTube video here showing the gantry moving in all axes at a magnificent speed of 1 metre/min!

    Now that I've worked out how soft limits and emulated home switches work, I'll post a video of it working with a piece of real G-Code doing air cuts at this stage.
    I've uploaded another YouTube video here running g-code for the first time. Programmed random rapid movements in the XY plane of up to 4500 mm/min. Now got the cable chains installed but had to unsolder all the stepper motor connections to fit the cable chain! doh!

  10. The Following User Says Thank You to MikeyC38 For This Useful Post:


  11. #38
    Almost there Mike sounds nice as well, keep up the good work.
    ..Clive
    The more you know, The better you know, How little you know

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


  13. #39
    Have some more footage posted on YouTube here

    Have temporarily given up trying to get my proximity switches to work :-( so using soft limits for now.

    Question: I now have to tram the spindle head. I have a dial micrometer and a sheet of 10mm plate glass. Do I need to level the glass in absolute terms, then tram against the glass or just tram against the glass so that the spindle is correctly aligned relative to the glass?

    Advice appreciated.

    Thanks
    Mike

  14. #40
    Lee Roberts's Avatar
    Lives in Wigan, United Kingdom. Current Activity: Viewing Moderator Control Panel Has been a member for 9-10 years. Has a total post count of 2,545. Received thanks 161 times, giving thanks to others 652 times. Made a monetary donation to the upkeep of the community. Referred 10 members to the community.
    That one:

    Quote Originally Posted by MikeyC38 View Post
    or just tram against the glass so that the spindle is correctly aligned relative to the glass?
    Looking forward to seeing how this machine performs Mike, it's very similar to mine.
    .Me

Page 4 of 6 FirstFirst ... 23456 LastLast

Similar Threads

  1. BUILD LOG: 8x4 router build. Steel base & Aluminium gantry gantry
    By D-man in forum DIY Router Build Logs
    Replies: 54
    Last Post: 29-11-2014, 08:48 PM
  2. Setup for squaring twin X-axis gantry
    By routercnc in forum Gantry/Router Machines & Building
    Replies: 20
    Last Post: 26-03-2014, 11:13 PM
  3. BUILD LOG: New build - fixed gantry mill using extruded profile
    By toolchimp in forum DIY Router Build Logs
    Replies: 3
    Last Post: 09-11-2012, 04:10 PM
  4. NEW MEMBER: New Member build finally started in Oxfordshire
    By pjchick in forum New Member Introductions
    Replies: 1
    Last Post: 26-11-2010, 04:02 PM
  5. BUILD LOG: Flying Gantry Build Diary
    By geoff.sim in forum DIY Router Build Logs
    Replies: 8
    Last Post: 29-05-2008, 02:53 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •