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Karl Lew edited this page Nov 15, 2013 · 5 revisions

X-axis frame for FirePick I (415x625mm) ...

Function

This is the frame for the smallest extensible FirePick base. You can create smaller machines for smaller work areas, but the smaller machines may not be able to have dual gantries, etc. The width of 415mm permits X-travel of about 94mm with a dual gantry. The length of 625mm accommodates two independent X-axis stages (component tray, PCB tray) with a dual-spindle head. The base provides a fixed, stable platform for electronics, drive assemblies and fixed Y-gantries. The base is joined with lap joints, and can therefore be enlarged to custom width and length. Pictured, above, is the FirePick reference build that shows how larger extensions can be fitted and tested to determine overall desired base size (excess width and length can be trimmed later with a hacksaw).

Bill of Materials

@Required

Assembly

If you wish, you can ignore these instructions, but you'll probably just waste a lot of time discovering that you forgot to do stuff:

  1. Apply copper foil to aluminum extrusions
  2. On a flat surface, lay down the short extrusions for the top/bottom edges of the base
  3. On top of the short extrusions, lay down the long extrusions for the left/right edges of the base
  4. Use 2 X523 brackets to secure the bottom/left corner. Tighten joint gradually, while constantly verifying that joint is exactly 90 degrees.
  5. Use 2 X523 brackets to secure the bottom/right corner. Tighten and verify.
  6. Insert 4 X50K extrusion nuts on the inside track of the left extrusion, orienting the round flange towards the extrusion. You will need these later for the MakerSlide extrusions.
  7. Insert 8 X50K extrusion nuts on the inside track of the right extrusion. You will need these later for stepper brackets and MakerSlide extrusions.
  8. Use 2 X523 brackets to secure the top/left corner. Tighten and verify.
  9. Use 2 X523 brackets to secure the top/right corner. Tighten and verify using a tape measure to ensure that top/bottom extrusions are parallel.
  10. Use 2 X523 brackets to secure a short MakerSlide extrusion 76mm from the bottom extrusion, and attach the brackets to the bottom-most available nut that you inserted previously. Attach one bracket per track (see picture). Do not use four brackets. Tighten and use tape measure to verify that MakerSlide is parallel with bottom extrusion.
  11. On the right extrusion, slide two of the loose extrusion nuts into the space between the MakerSlides. You'll need them for the stepper motor bracket.
  12. Use 2 X523 brackets to secure a short MakerSlide extrusion 267mm from the bottom extrusion, and attach the brackets to the bottom-most available nut that you inserted previously. Attach one bracket per track (see picture). Do not use four brackets. Tighten and use tape measure to verify that MakerSlide is parallel with bottom extrusion.
  13. Apply four blobs of modelling clay, one to each corner. These blobs will flatten and form a stable, self-leveling base that also dampens vibrations. Remarkable technology, that modelling clay.
  14. Flip base over. It was upside-down.
  15. Press down gently to set the modelling clay.
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