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that depends almost entirely on print temperature.
Print it at 220 - 235 and it's rigid and brittle.

240 and above and it starts to toughen up.

You still have to print it really slowly -...

yep.
actually so is abs.
Pretty much the first things I ever desinged and printed were sausage stuffer tubes in abs.
6 years later, still using them.
That was in the frustrating months before...

for some reason ralph is resurrecting all the old threads about food safe materials.
personally I think it's just to get his website link on the front page of the forum.

Not quite a spammer -...

actually the thicker the layer, the greater chance of it being watertight. Fewer layers = fewer chances for holes.

Print fairly slowly, no infill (important) and 0.3-0.4 layer thickness.

I...