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May 21, 2018 ...

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Topic: Nasa ratchet  (Read 117 times) previous topic - next topic

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Nasa ratchet
I wanted to give this a go. It's a complex piece as it has working internals and is printed as one piece. I'll be trying it again once I get some decent filament. 

Suprisingly the print is quiet reasonable, it just needed extra cooling which I couldn't do as the filament was reacting badly and clumping with the fan on. Unfortunately that meant that the layer separation  wasn't good enough to allow the mechanism to free up.
I also should have printed it at 100% infill as the connector piece deformed and nearly snapped when I tried to free up the mechanism. 

Here's the link to the stl file. You will need to reduce the size to about 90% to fit the hero, more if you want to use a brim or raft.
https://nasa3d.arc.nasa.gov/detail/wrench-mis