Thingiverse
Automatic knife
door Shankman
139
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Makes
https://youtu.be/kANP4qNV07I
These should be printed in PLA for best results. PLA provides for rigidity
and a slippery surface that allows the blade to slide freely
top & bottom-2 perimeters 25% infill, 0.25mm layer
blade,catch and blade pin---3 perimeters 30% infill, 0.25mm layer
requires 3 short pieces of 3mm filament approx 15mm long
4 each M3 x 20 Socket head cap screw & nut.
not all rubber bands are created equal. the better ones to use
are the Plastibands, orthodontic elastics and EPDM ones. These types will
on the average last for about 30 cycles before breaking. The Plastibands
will stretch out before they break.They are good for about 20 cycles
before it comes time to replace them. The EPDM are the best, lasting
around 26-30 cycles before breaking.
5 piece design and should take 5-6 hours to print.
don't over tighten M3 screws.if too tight binding will occur
These should be printed in PLA for best results. PLA provides for rigidity
and a slippery surface that allows the blade to slide freely
top & bottom-2 perimeters 25% infill, 0.25mm layer
blade,catch and blade pin---3 perimeters 30% infill, 0.25mm layer
requires 3 short pieces of 3mm filament approx 15mm long
4 each M3 x 20 Socket head cap screw & nut.
not all rubber bands are created equal. the better ones to use
are the Plastibands, orthodontic elastics and EPDM ones. These types will
on the average last for about 30 cycles before breaking. The Plastibands
will stretch out before they break.They are good for about 20 cycles
before it comes time to replace them. The EPDM are the best, lasting
around 26-30 cycles before breaking.
5 piece design and should take 5-6 hours to print.
don't over tighten M3 screws.if too tight binding will occur
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