Polymaker PolyMide PA612-CF Black, 1.75 mm (500 g)

My favourite filament for functional parts that have to be strong

Rated with 5 out of 5 stars.

This filament is amazing!
It´s not very easy to print, you always risk warping if you don´t have perfect bed adhesion. You almost have to use 3DLac or similar adhesion promoters on PEI sheets and probably even on other build surfaces. If you have an open print chamber the warping will be bad too, a heated chamber is a plus for bigger parts, but mostly you can probably get away with a normal enclosed chamber and some preheating through your bed. The parts tend to warp even when you take them out too soon after printing, bett leave them cool slowly in the closed chamber..
But man, once you dial it in and get good at deisgning and printing this stuff it is a beast.. Extremely rigid, extremely good layer bonding and based on the part you print this is almost impossible to break without using heavy tools an brute force..
a square 40x20mm and only 1mm thick is extremely difficult to break by hand and while i´m not a bodybuilder i´m not a weak man either.
Functional and mechanically stressed stuff is it´s territory, it´s estetically pleasing (typical semirough and matte finish, blends in lyer lines very well) but definitely not ideal for esthetic stuff, it´s pricy too, but if you need that type of strenght it´s worth every cent..
Now i understand while some people reffer to it as an aluminium cnc subsitute.

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