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Instructions:

STEP: Take one of 13 parts on page 2 and CAD them, add them to a Part Library, generate STL files if needed. 14th CAD is entire assembly. Assume that axis mount holes are lined up with midpoint of PVC

STEP 2 - Print and Prototype and Test.

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D3D PVC Mini Design Sprint

  1. D3D Mini PVC on the wiki building upon - [[3D Printer Manual]]
  2. 1 - generate corners, save into [[D3D Part Library]]
    1. [[D3D Mini PVC#Part Libary]]
  3. Design requirement - run a 6”x6” print bed (150mmx150mm)

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Part List for Part Library-

  1. Part 1 - Frame - 12x12x12 outside
    1. 2 - start assembling into a 12x12” cube with FreeCAD
    2. Corners - Part 2
    3. Tubes - Part 3
    4. [6] Axis Mounts - Part 4
  2. Axes Y - has to fit on axis mounts - Part 5 - Left Y
    • Part 6 - Right Y axis
  3. Axis X - based on the frame + Y axes - fit the X between Y axes - Part 7
  4. Axis Z - 1 (unlike bigger printer) - Same as Y axes
  5. Print Bed Holder - Part 8
  6. ⅛” platform - steel - goes on bed holder- Part 9
  7. Extruder - MK8 style, 3D printed, open source - Part 10, Part 11 - there are 2 3D printed parts; plus the overall extrudere assembly with mounting to carriage
  8. Part 12 - 7 A Power supply
    • Solder the power leads to the RAMPS

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9 - Arduino/RAMPS - Part 13

    • Search for existing CAD

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Big deal - holder for axes - concept design needed:

    • Mounted on PVC, so no drilling is needed for PVC
    • Modular Clamp/bolt design so it can be moved easy?
      • Base clamp clamshell module in one file
        • Size =
      • Additional parts or mods separate files
    • O.D. of ¾” PVC =

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Axis Mount Design

Requierements:

  • Mounting [[Universal Axis]]
  • Use [[3D Printer Workbench]]
  • ¾” PVC is used

Front view

Side view

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Axis Mount Design 2

Side view

¾” PVC

  1. Readily detachable from frame, using bolts
    1. 6mmx18mm or 30mm [[D3D BOM]]
  2. Bolt the axis piece to the Axis Mount - as if it were the frame (using the same bolts - 30 mm bolts)
  3. Such that you can take existing axes - from 14” frame 8x8” bed D3D - and mount them
  4. You can slide the attachment up or down on PVC to adjust height
  5. Some type of Clamp or Clam around the ¾” PVC
  6. Mounts on the OUTSIDE of the frame
    • Because allows a smaller frame for same print volume
    • Allows you to use ALL IDENTICAL rod length
  7. Do not use the nut catcher holes for the same reason as mounting axes on OUTSIDE of frame
  8. Sufficient to mount with 1 bolt hole
  9. Lowest part count, simplest design

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Axis Mount Design 3

¾” PVC

Side view of axis 3D printed piece

Frame membe for attaching

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Details of 3D Printed Piece Connection

There are 2 main ways to make attachments to the 3D Printed pieces:

  1. Through holes
  2. End nut catcher holes
    1. Do not use these

30 mm bolts

18 mm bolts

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Design Sprint - Friday 1-3 PM CST

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Cubic shaped frame with OSE Piping Workbench corner pieces - ¾” - 12” - for a 6x6” bed (n-6”)

Left y

Right y

X axis

Z axis

rod

rod

X axis

Bed Holder

Bed

Use D3D Circuit Mill CAD as starting point for measurements

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¾” PVC 1.315” diameter

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Experimental Clamp style variations

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Formulas for determining rod length and scaling frame based on part sizes.

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Travel distance = rod length - ~4.18”.

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Distance between mount holes = rod length - ~2.29”.

Assuming bolt holes are both through axis clamping bolt holes.

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