Reply To: BrundleFab (sugar printer)

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The fuser system is working now – and no fires yet! But WOW do halogens get hot!

… but now I have piston troubles.

Varying humidity (humidity really puts the ‘multi-dimension’ in MDF!) and sugar migration into the piston seams has locked up my NEMA 17 based pistons.

I can disconnect the motor and move the pistons by hand, but this will not do for a real build.

I’m considering either going the NEMA 23 route (with bigger motors will also come bigger drivers, and more electronics rework), or trying some loose-fit seal ideas I have.

Any experience here with piston success/failure modes?