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DrLex

Mini M3 hex key wrench

by DrLex Dec 11, 2016
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Printed in PLA and it was less than impressive :) Will try with PC+

Also it was very loose fit. Any scaling suggestion?

Well if it is too loose, try scaling it down to 98% or even less. I have noticed that the actual outer size of M3 nuts tends to vary between manufacturers. I guess not all Chinese factories take standardisation equally seriously.
And of course this is not meant for heavy duty work, even a polycarbonate print will not be nearly as strong as a metal wrench…