Welcome to Our Community

Unlock hidden features. Sign Up for Free Today!

3D PrintBot 500x500x500

Discussion in '3D printers' started by antonyking, Feb 3, 2017.

  1. antonyking

    antonyking Well-Known
    Builder

    Joined:
    Aug 27, 2016
    Messages:
    28
    Likes Received:
    8
    snokid likes this.
  2. MaryD

    MaryD OpenBuilds Team
    Staff Member Moderator Builder

    Joined:
    Apr 13, 2016
    Messages:
    330
    Likes Received:
    307
    Looking forward to watching your creativity unfold on this machine.
     
  3. evilc66

    evilc66 Master
    Builder

    Joined:
    Jan 9, 2015
    Messages:
    340
    Likes Received:
    114
    This one should be good :)
     
  4. snokid

    snokid Veteran
    Staff Member Moderator Builder

    Joined:
    Oct 11, 2014
    Messages:
    330
    Likes Received:
    98
    should be cool!!!
     
  5. antonyking

    antonyking Well-Known
    Builder

    Joined:
    Aug 27, 2016
    Messages:
    28
    Likes Received:
    8
    Thanks Guys the build is a little slow ATM while parts dribble in. I hope to get into it full on over the next few weeks.

    I have decided on a few of the electronics and I have 3x Nema 23 0.9deg(400 steps/rev) 127.5oz.in arriving tomorrow. I am going to start with a MKS Gen v1.4 board and drive the Nema 23's with TB6560 Drivers The Nema 17's on the X axis and extruder will have DRV8825 drivers.
     
    MaryD likes this.
  6. crazerico

    crazerico Well-Known
    Builder

    Joined:
    Jan 26, 2017
    Messages:
    15
    Likes Received:
    4
    any updates?
     
  7. antonyking

    antonyking Well-Known
    Builder

    Joined:
    Aug 27, 2016
    Messages:
    28
    Likes Received:
    8
    Everything I have done to date, as in yesterday has been added to the build page. Hmm maybe I should do it here?

    Anyway the build is mocked up with the 3D printed test plates while await for the aluminum plates to be machined.

    [​IMG]

    I am printing off some temp 3d parts to make a simple "one motor to belt drive 2 leadscrews" idea as a test and because I only have one TB6560 driver for the Z at this time. Plus it would be interesting to see it go.

    I will start wiring the motors. One good thing about the MKS Gen 1.4 is that it has pins for external drivers already and I don't have to make up a way to pin into the normal Driver socket.
     
  8. antonyking

    antonyking Well-Known
    Builder

    Joined:
    Aug 27, 2016
    Messages:
    28
    Likes Received:
    8
    The wiring has been a snack to sort out but I didn't think about the length of all the wires. So I will have to go to JayCar and buy some meters of wire.

    The MKS board makes like so easy with it's layout.

    IMG20170226112405.jpg

    I setup the board with Marlin 1.1.0-RC8 which is what I am running in the below short movie of the homing. I also did a firmware setup of the Stable 1.0.2-2 as a backup.

    The advantages of the new firmware makes it all work very nicely, so it would be great if there was an official release of 1.1 soon. One of the new features is the BLtouch is now a one comment line in the new firmware with new Mesh Autoleveling. You can see I have a Geeetech 3DTouch which a BLTouch ripoff and I have one setup on my LulzBot Custom and they do work very well.

    The first run.

     
  9. antonyking

    antonyking Well-Known
    Builder

    Joined:
    Aug 27, 2016
    Messages:
    28
    Likes Received:
    8
    After many small issues like duff touch sensor x2 that seems to have an weird fault causing it to go into alarm sometimes and sometimes working. I have a new one coming.

    I replaced the Y axis linear drive and replaced with a belt setup. Instantly I got better Y axis. In my discovery though I fount the TB6560 drivers may be part of the issue and that was after I had to return 2 which had the switches fall apart. I replaced the Y axis with a Nema 23 0.9deg motor same as the 2x Z axis and I am driving it from the MKS Geb 1.4 with DRV8825 drivers.

    I had a eureka moment when trying to get the TB6560 drivers to run the Z axis smooth when I realised the motors are low power, they are 12v but only 0.38A and given the 8825 are 2.2A I figure I'd give it a go... bugger me not only do they driver the Nema 23's smoother they will do it at 1/32 step.

    Where I was missing steps with the TB6560 I can push the speed till I start jumping teeth on the belt. I have a 10mm wide GT2 belt and pulleys coming but I may have to got to GT3 belt for the Y axis just to help cope with the mass.

    IMG20170307113456.jpg IMG20170307113504.jpg IMG20170307113533.jpg
     
    Jacques D likes this.
  10. Jacques D

    Jacques D Well-Known
    Builder

    Joined:
    Oct 9, 2016
    Messages:
    18
    Likes Received:
    1
    Very nice build !
     
  11. evilc66

    evilc66 Master
    Builder

    Joined:
    Jan 9, 2015
    Messages:
    340
    Likes Received:
    114
    Looking good. How's the ringing on the part now that you have gone to belts?
     
  12. Anthony Bolgar

    Builder

    Joined:
    Jan 14, 2016
    Messages:
    184
    Likes Received:
    100
    I really like your Vslot "nail" Do you have an stl file of it you are willing to share?
     
  13. antonyking

    antonyking Well-Known
    Builder

    Joined:
    Aug 27, 2016
    Messages:
    28
    Likes Received:
    8
  14. antonyking

    antonyking Well-Known
    Builder

    Joined:
    Aug 27, 2016
    Messages:
    28
    Likes Received:
    8
    On the calibration cube it's not as bad as I expected. I will see if I can get a pic.

    I had a situation where it would just miss a few steps at the very top of the calibration print, so I thought it was temp related with either the drivers or motors but I did a random longer print of a hinge part and it didn't miss a beat.

    I am printing with a 0.4 nozzle which would be way to small if you where to utilize the size of the printer... so I need to get the volcano setup with something like a 0.8 nozzle to see what it's like for what it would be used for.
     
  15. Anthony Bolgar

    Builder

    Joined:
    Jan 14, 2016
    Messages:
    184
    Likes Received:
    100
    Thanks for the stl file. Much appreciated.
     
    antonyking likes this.
  16. Val Cocora

    Val Cocora Veteran
    Builder

    Joined:
    May 19, 2014
    Messages:
    172
    Likes Received:
    27
    i know i posted this elsewhere, but just for good measure.
    try using pir foam, 'sink' the extruder 0.5 mm into it and start printing.
    no more precision leveling required (foam is very forgiving) and also no more heating and all electronics related.

     
  17. antonyking

    antonyking Well-Known
    Builder

    Joined:
    Aug 27, 2016
    Messages:
    28
    Likes Received:
    8
    Ok thanks I might try this.
     

Share This Page

  • About Us

    The OpenBuilds Team is dedicated helping you to Dream it - Build it - Share it! Collaborate on our forums and be sure to visit the Part Store for all your Building needs!
  • Like us on Facebook

  • Support Open Source FairShare Program!

    OpenBuilds FairShare Give Back Program provide resources to Open Source projects, developers and schools around the world. Invest in your future by helping others develop theirs!

    Donate to FairShare!