PLA Cube Gears for Replicator 2
by whpthomas, published
So I set about trying to design some alternative pins for PLA. My first attempt was to make flexible end tabs, but while this worked, the cube gear axle is too short to support this approach. In the next attempt, I altered the internal structure of the tip of the pin to make it more flexible for PLA and redesigned the protrusions.
These new pins were designed using an ACIS solid in Shark FX (sfx file included) so will behave well with Makerware, ReplicatorG and skeinforge. They snap into place with moderate force and rotate freely.
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Love this!!! Printed mine in RED PLA and all of the pieces just snapped together. No other finishing required at all. Done on a MendelMax 1.5
Can you add the gear files not all on one plate so I can print each item separately. I would like to print each part a different color.
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If you have already made Emmett's Screwless Cube Gears, then these pins are a drop in replacement. Simply download and print PLA-gear-cube-pins.stl file - that's all you need.
If you are using Makerware I would recommend at least a 0.2mm layer height, 3 shells and 15% infill. In ReplicatorG I am doing the same, but using the skin module to achieve a 0.1 mm outer surface finish.
CUBE GEAR PLATES
If you want to make the PLA cube gears from scratch, simply download and print the two plates: PLA-gear-cube-plate1.stl and PLA-gear-cube-plate2.stl. The first plate includes my snap off ear raft print aids, to increase the surface area of the small gears to prevent them from breaking loose during printing.
Again, if you are using Makerware I would recommend at least a 0.2mm layer height, 3 shells and 15% infill. In ReplicatorG I am doing the same, but using the skin module to achieve a 0.1 mm outer surface finish.
BTW: The print in the photo was made with Makerware (default medium settings) and printed on my Replicator 2 the first day after it arrived - the original pins broke, hence the new PLA design.
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