Question

fff: design table
use the information below to answer the question.
bridges
the maximum bridging is 1 cm or approximately 2 times the width of a paper clip. this
is how far the nozzle can travel horizontally without any support.
holes
the minimum size for holes is 2 mm. a user can always drill a larger hole after printing
to get the exact size wanted.
clearances & pin diameter
the minimum axle size for moving parts is 2 mm. for pins, the minimum diameter is 3
mm. it is recommended to use an off - the - shelf pin instead of printing one.
cantilevered
with a cantilevered piece, do not go more than 3 mm.
in terms of fused filament fabrication (fff), what is the
minimum diameter for pins?
5 mm
3 mm
1 mm
4 mm

Explanation:

The "Clearances & Pin Diameter" section explicitly states the minimum diameter for pins in FFF is 3 mm.

Answer:

3 mm