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Prusa i3 (Acrylic frame with OB rods)

Discussion in '3D printers' started by dddman, Feb 6, 2015.

Prusa i3 (Acrylic frame with OB rods)

Prusa i3 (Acrylic frame with OB rods)

Discussion in '3D printers' started by dddman, Feb 6, 2015.

The Prusa i3 (iteration 3) is the newest and most current 3D Printer design by RepRap Core Developer Prusajr (source: http://reprap.org/wiki/Prusa_i3)

prusa i3 3D printer wades extruder acrylic OB rods TR8
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  1. Mopar32985

    Mopar32985 Well-Known
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    #61 Mopar32985, Apr 2, 2015
  2. dddman

    dddman Journeyman
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    I don't really understand what part do you need... and your picture doesn't work
     
    #62 dddman, Apr 2, 2015
  3. OgreMills

    OgreMills New
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    Im sorry, I uploaded the picture again. Sorry to be a pain, this is my first build and I'm just trying to make sure I understand it all.
     
    #63 OgreMills, Apr 2, 2015
  4. Mopar32985

    Mopar32985 Well-Known
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    Yes thats a metal lead screw nut sorry your right. Thought you were talking about x motor mount
     
    #64 Mopar32985, Apr 2, 2015
  5. dddman

    dddman Journeyman
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    There's no problem! We are here to help. This part isn't printable, you can buy it from Robotdigg, but it's kind of a PITA to order, Robert and I already have some ordered and will sell it as soon as we get it
     
    #65 dddman, Apr 2, 2015
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  6. OgreMills

    OgreMills New
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    GREAT! Thanks so much. Let me know when I can get some!
     
    #66 OgreMills, Apr 2, 2015
  7. Mopar32985

    Mopar32985 Well-Known
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    Well I got as far as I can on my OBi3 until the rest of my parts come in should be in tomorrow(fingers crossed)
     

    Attached Files:

    #67 Mopar32985, Apr 2, 2015
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  8. dddman

    dddman Journeyman
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    You may prefer to invert your frame braces... the limit switches are designed to be places on the left. So, having your controller on the left will need less wiring.
     
    #68 dddman, Apr 2, 2015
  9. Mopar32985

    Mopar32985 Well-Known
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    i gotcha thanks for the input man!!
     
    #69 Mopar32985, Apr 2, 2015
  10. Mopar32985

    Mopar32985 Well-Known
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    #70 Mopar32985, Apr 2, 2015
    Last edited: Apr 2, 2015
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  11. OgreMills

    OgreMills New
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    Do those metal lead screw nuts come with the screws needed to attach it to the printed part?
     
    #71 OgreMills, Apr 3, 2015
  12. dddman

    dddman Journeyman
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    They are not in metal, they are Delrin, and Robert and I can provide you 6 of the needed screws :) Have a Torx screwdriver ready :)
     
    #72 dddman, Apr 3, 2015
  13. OgreMills

    OgreMills New
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    Cool, and they fit a M5 threaded rod? Just asking bc I'm kind of combining this OBi3 build with the Prusa i3 Rework.
     
    #73 OgreMills, Apr 3, 2015
  14. Robert Hummel

    Robert Hummel Custom Builder
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    It's for TR8 threaded rods from the OB store ;)
    BTW nut kits are in $25 shipped
    Contains two nuts and 6 hardware screws
    The ABS prints like a charm just can't get it to stick to the plate.
    I'm going to try bare glass and hairspray next ;)
     
    #74 Robert Hummel, Apr 3, 2015
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  15. Mopar32985

    Mopar32985 Well-Known
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    @Robert Hummel yes def need glass and hairspray i use Aqua Net Extra Super Hold. Also what screws are you using to hold in the leadscrew nuts only thing left on the list. Only thing that sucks is USPS is taking forever for my screws to come in they were supposed to be here on the first and no update on tracking form the suppler :(
     
    #75 Mopar32985, Apr 3, 2015
  16. OgreMills

    OgreMills New
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    I modified the OBi3 X idler and motor mount to take a 5mm nut. Those are what I ordered originally so that what I'll do this build with. Next time I'll beef them up to TR8's though.

    Thanks for all the info. This is a great site!
     
    #76 OgreMills, Apr 3, 2015
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  17. Robert Hummel

    Robert Hummel Custom Builder
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    They are plastic grub screws
    A fast way to get some, rip an on inkjet apart or you will have to find a supply and order.
    I have some but it may take a few days to get to ya
    image.jpg
     
    #77 Robert Hummel, Apr 3, 2015
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  18. Robert Hummel

    Robert Hummel Custom Builder
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    Just thought I would post a pic of my little girls latest print :D
    image.jpg
    .1 layer with PLA/PHA Colorfab
     
    #78 Robert Hummel, Apr 7, 2015
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  19. dddman

    dddman Journeyman
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    PLA/PHA is awesome :) But expensive :(
     
    #79 dddman, Apr 7, 2015
  20. Tweakie

    Tweakie OpenBuilds Team
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    Excellent Robert - I bet she is pleased with that. :thumbsup:

    Tweakie.
     
    #80 Tweakie, Apr 8, 2015
  21. dddman

    dddman Journeyman
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    PLA/PHA isn't ABS nor PLA, and ABS still sucks :p
     
    #81 dddman, Apr 8, 2015
  22. Robert Hummel

    Robert Hummel Custom Builder
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    Ribbing? Pic please :)
    I'm still green to the printer slang
     
    #82 Robert Hummel, Apr 8, 2015
  23. Robert Hummel

    Robert Hummel Custom Builder
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    Your over extruding, what are your estps
     
    #83 Robert Hummel, Apr 8, 2015
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  24. Kyo

    Kyo Veteran
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    Something I have not adjusted before either. Thanks! Went ahead and did that this afternoon. Mine was way out of whack. lol I am getting much smother sides now.
    ( top before, bottom after both abs )

    [​IMG]
     
    #84 Kyo, Apr 9, 2015
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  25. Robert Hummel

    Robert Hummel Custom Builder
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    All updated stls and DFX format for the opensource frame
    NOTE 8mm and 10mm Threaded rod is used for the Y axis
     

    Attached Files:

    #85 Robert Hummel, Apr 10, 2015
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  26. dddman

    dddman Journeyman
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    I suppose you still can use 3/8" rods?
     
    #86 dddman, Apr 10, 2015
  27. Robert Hummel

    Robert Hummel Custom Builder
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    I use 8mm and 10mm threaded rod now to fit the capped ends.
    Found a local supply :)
    I'm sure someone can change the hole size tonight after work to give the folks that don't have access to the metric goods a chance to still build it ;)
     
    #87 Robert Hummel, Apr 10, 2015
  28. Mopar32985

    Mopar32985 Well-Known
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    Is there anyway you guys could put up some pictures of your OBi3 so we can see how to assemble ours it would be a great help especially the back threaded rods thanks @Robert Hummel
     
    #88 Mopar32985, Apr 10, 2015
  29. Mopar32985

    Mopar32985 Well-Known
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    @Robert Hummel Also the slots in the back of your frame are 10mm but the rod used in the y corners are 8mm
     
    #89 Mopar32985, Apr 10, 2015
    Last edited: Apr 10, 2015
  30. dddman

    dddman Journeyman
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    Here we go
     

    Attached Files:

    #90 dddman, Apr 10, 2015
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