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07-20-2020, 08:09 AM #8
40c bed temp is too cold.
for pla - 65c is optimal.
85c for abs
and 100-110c for pet-g
It's essentially the glass point of the material.
ie: that temp where it's still everso slightly flexible and hasn't cooled enough to shrink.
You need it hard - if it's too soft it'll collapse/squish and ruin subsequent layers.
If it's stringing excessively then you're printing too cool and - probably - your retraction settings are wrong.
I find that pla printss best betwen 200-215c - depending on speed, layer thickness and cooling duct efficiency.
Pet-g, hell I've seen everything from 220c on up to 255c - seems to depend entirely on who made it and who's using it. So trial and error there.
Abs - again I've seen everything from 220c on up to 260c. And again seems to depend on make, colour and whether or not you have a heated enclosure. The better the heated enclosure the higher you can get away with printing it. And the better your layer adhesion will be.
Printer will print perfect...
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