Welcome to Our Community

Unlock hidden features. Sign Up for Free Today!

CoreXY cubish?

Discussion in '3D printers' started by Max Tepermeister, Jul 25, 2016.

  1. Max Tepermeister

    Max Tepermeister Well-Known
    Builder

    Joined:
    Aug 3, 2015
    Messages:
    5
    Likes Received:
    6
    Max Tepermeister published a new build:

    Read more about this build...
     
  2. tay0825

    tay0825 New
    Builder

    Joined:
    Apr 11, 2016
    Messages:
    1
    Likes Received:
    0
    I would be interested in seeing a model of your build. Inventor if possible.
     
  3. Max Tepermeister

    Max Tepermeister Well-Known
    Builder

    Joined:
    Aug 3, 2015
    Messages:
    5
    Likes Received:
    6
    I can export the model to inventor. I don't know how well/if the constraints will carry over. In Creo, everything moves correctly. The model is changing a lot though, so it won't be current for very long. I'll post the files in a few minutes. I'll also try and get some pictures up of my current progress.

    EDIT: I realized that the inventor I could export to wasn't autodesk inventor, but something else. I added zip files of the creo files as well as a zip of a STEP assembly that contains everything.
     
    #3 Max Tepermeister, Aug 2, 2016
    Last edited: Aug 2, 2016
  4. Max Tepermeister

    Max Tepermeister Well-Known
    Builder

    Joined:
    Aug 3, 2015
    Messages:
    5
    Likes Received:
    6
    Okay. Finally took some pictures of the printer and rendered the latest revision of the CAD overnight. (The old render was from a couple of weeks ago.) The images show the whole printer as well as some details on the electronics wiring that I've done so far. I spent a long time thinking about and wiring the 120VAC side of the power supply to be as safe as possible. In the image that shows the z-belts, you can just make out the rear idler skewed up at an unnatural angle. I need to reprint that rear bracket stronger.

    Another issue that I'm having is with the z axis pulleys on the leadscrews. The pulleys come with a 5mm hole that I drilled out to 6mm in order to fit them onto the leadscrews. (6mm is the smallest smooth end that you can get on an 8mm leadscrew from misumi). 2 of them are OK, but the third was drilled at an angle and introduces a lot of wobble and inconsistent tension in the belt. When I have access to a lathe, I'm going to try turning the hole down on that instead.

    Enough talking. Pictures!
    [​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG][​IMG]

    Sorry about the quality of the photos. My phone camera isn't the best.

    The next thing that I'm going to be working on is the heated bed. I just got the aluminum heat spreader and borosylicate glass from mcmaster today. My plan is to glue the 11.5x11.5 inch heating pad to the bottom of the 12x12 inch heat spreader. I would then drill and countersink holes around the 1/4 inch border of the spreader and attach it to the mdf using standoffs. (8? 1 at each corner and each side middle maybe). The glass would be clipped to the aluminum with part of the clip over the glass and the other part under the aluminum. (the standoffs are just long enough to allow this).

    I'm struggling a bit to ensure the lead screws are completely vertical as my mdf bed was cut and drilled by hand. I don't have access to a cnc machine or laser cutter, but I was considering ordering a perfectly cut bed. All of my hand drilled holes are a tiny bit off and the error adds up. I compensated by drilling oversize holes, but I can't go much larger as they would break through part of the mdf. If that doesn't make sense, I'll try to get a picture showing it.

    I would love to hear anyone's comments, idea's or suggestions!!
    ~Max
     
    #4 Max Tepermeister, Aug 4, 2016
    Last edited: Aug 28, 2016
    VooDoo and Kyo like this.
  5. Max Tepermeister

    Max Tepermeister Well-Known
    Builder

    Joined:
    Aug 3, 2015
    Messages:
    5
    Likes Received:
    6
    Here are some pictures of the bed mockup. I was just trying to get a feel for how everything fits together.

    [​IMG] [​IMG] [​IMG]

    It's late, so I'll talk more about what I did when I have time. Thanks for looking!
    ~Max
     
    #5 Max Tepermeister, Aug 8, 2016
    Last edited: Aug 28, 2016
    VooDoo likes 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!