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OpenBuilds ACRO Z Axis

Discussion in 'Laser Cutters' started by petethepig, May 31, 2019.

OpenBuilds ACRO Z Axis

OpenBuilds ACRO Z Axis

Discussion in 'Laser Cutters' started by petethepig, May 31, 2019.

Z-Axis for OpenBuilds ACRO system. It is sturdy enough to carry a small drill.

acro z-axis openbuilds drill
  1. petethepig

    petethepig New
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    petethepig published a new build:

    Read more about this build...
     
    #1 petethepig, May 31, 2019
    ToddW, Peter Van Der Walt, Scotty Orr and 1 other person like this.
  2. Scotty Orr

    Scotty Orr Journeyman
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    This is cool! I hope you can publish a few more photos (close-ups). Thanks!
     
    #2 Scotty Orr, May 31, 2019
  3. Mark Carew

    Mark Carew OpenBuilds Team
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    Ditto @petethepig looking forward to seeing more pics as well! Nice job
     
    #3 Mark Carew, May 31, 2019
  4. yogeshnd

    yogeshnd New
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    This is really awesome! I was just thinking of building the acro system, but was refraining as it doesn't have a Z axis.

    I'll be primarily using it to cut paper/cardboard with laser or a plotter cutting blade.

    Just curious, Do you think it can mill murals like these?? just works of art on foam or light wood maybe?

    Looking forward for updates!! Great job!
     
    #4 yogeshnd, May 31, 2019
  5. petethepig

    petethepig New
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    Hi @yogeshnd. I don't think it will be able to do murals like that unfortunately. In foam — sure, but I don't think it could handle wood.

    I don't have any experience with milling, but I always thought there must be a reason those machines are always just much bigger and heavier than a 3d printer or a laser.
     
    #5 petethepig, Jun 3, 2019
    yogeshnd likes this.
  6. petethepig

    petethepig New
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    Thank you guys, I updated the post with some pictures.
     
    #6 petethepig, Jun 3, 2019
    Scotty Orr likes this.
  7. Scotty Orr

    Scotty Orr Journeyman
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    Great job!! Thanks for the added detail!
     
    #7 Scotty Orr, Jun 3, 2019
  8. the_greek

    the_greek New
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    Hello. What type of spindle have you attached?
     
    #8 the_greek, Jun 26, 2019
  9. petethepig

    petethepig New
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    Hi, I'm currently using one of these brushless motors

    It's good enough for drilling small holes, but not good for milling.
     
    #9 petethepig, Jun 26, 2019
    the_greek likes this.
  10. syl

    syl New
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    Did you add a place to add an end stop for your z axis? Also how long did it take you to print out the 3d parts on your Prusa?
     
    #10 syl, Aug 2, 2019
  11. Todd Brous

    Todd Brous New
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    Beautiful design on the Z-axis!

    I love how you have the support for the drag train on the top of the Z motor. I need to do something like this. So smart!

    I noticed that there is a threaded rod inserted in the light-blue 3d printed plastic piece on top of the Z-motor. What is this used for?

    Does the lead screw rub away the red plastic at the bottom of the Z-axis?

    Thanks,
    -Todd
     
    #11 Todd Brous, Aug 9, 2019
  12. petethepig

    petethepig New
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    I'm not using any physical endstops, going with TMC 2130 drivers and their stallGuard feature. Speaking of printing, it took around 10 hours for the main part.
     
    #12 petethepig, Sep 29, 2019
  13. petethepig

    petethepig New
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    Thanks Todd!

    That threaded rod is used as a spool pin for cotton thread. I use it when I make string art.

    Speaking of lead screw and the plastic — it doesn't rub away the plastic, the hole is larger than the lead screw. But I do think putting a bearing there would be a good idea.
     
    #13 petethepig, Sep 29, 2019
  14. MatAff

    MatAff New
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    #14 MatAff, Sep 30, 2019
  15. petethepig

    petethepig New
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    #15 petethepig, Oct 1, 2019
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  16. DeltaCon

    DeltaCon New
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    I am thinking of converting this Z-Axis setup to my Stinger Laser. Biggest difference is it has a 40x40 X-Axis rail. I like how compact this setup is. Question though: You are using eccentric nuts on 3d-printed plates. How is that holding up long-term? I always thought that it ould nbot work because it will wear off. How is your experience?
     
    #16 DeltaCon, Apr 26, 2020
  17. DeltaCon

    DeltaCon New
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    Second question: You made STLs of the carriage and the gantry plate with and without supports, but despite the difference in filesize, I see exactly NO difference. How does this work?
     
    #17 DeltaCon, Apr 26, 2020
  18. petethepig

    petethepig New
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    That part has been working fine for me so far. Honestly, not sure what you mean by wear in this case. Are you worried the eccentric nuts will kinda rotate and move slightly over time? I haven't seen this happen with my set up. There are nylon nuts on the other side and they seem to be holding the whole thing in place well. This machine only has seen maybe around a 100 hours of work though, so your mileage may vary.

    Yeah, sorry it's not super clear, I answered a similar question on Thingiverse before: OpenBuilds ACRO Z Axis by petethepig
     
    #18 petethepig, Apr 26, 2020
  19. DimitriGeelen

    DimitriGeelen New
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    would be happy to be able to order it as a kit, now scrambling to get all parts together
     
    #19 DimitriGeelen, Aug 25, 2020
  20. julius64

    julius64 New
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    Hello!, Great job!! I would like to ask you if you have seen any difference in the V-Slot Linear Rails (if the Linear Rails have been distorted for example)??
     
    #20 julius64, Aug 29, 2020
  21. petethepig

    petethepig New
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    Hi, are you asking if they bent or deformed or something like that under load?

    No, with this build plastic starts flexing way before aluminum.
     
    #21 petethepig, Aug 29, 2020
    julius64 likes this.
  22. rhgrafix

    rhgrafix New
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    What is the wattage of the laser part and approx. price? Thanks and good job!
     
    #22 rhgrafix, Dec 14, 2020
  23. Alexander AG

    Alexander AG New
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    Hey. I have not found any STL files to align the profile. Can you post them?
     
    #23 Alexander AG, Dec 26, 2020
  24. Eric Lorenz

    Eric Lorenz New
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    Fantastic Design! Compact and super sturdy! Thanks so much!

    It would help if there would be a bit more documentation/directions of the assembly process. The what goes where is clear but because it's so compact when I built it I had to take out a few bolts again because I realized too late that another one needs to go in first. But I also didn't take any notes I could share, so I'm not complaining ;)

    Thanks again!
     
    #24 Eric Lorenz, Oct 26, 2024

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