Slow down the speed of the head a bit. Or increase the extrusion a bit. May
need a little of both. What was your bed prep? I find that scrubbing glue stick
on the bed then wiping with a wet paper towel to leave an even film behind
works pretty good for PLA, and when the bed cools the print pops free.
On Tuesday, June 2, 2020, 3:57:07 PM MDT, Gene Heskett
<ghesk...@shentel.net> wrote:
I'm about 90% done with a 10 tooth XL, and not at all impressed by the
actual tooth profile as it has lots of voids. Supposed to have a top
flange, but its not gotten there yet. The bottom was supposed to be
about 10mm thick so the captured nut would have lots of meat around it,
but its not sitting flat on the bed, came loose in the first mm and the
hub section is way thin, guessing 6mm is all. Cuda had a profile for an
ender 3 pro, but this isn't showing me its optimum. Done. Looks like an
XL belt will fit, the flange looks usable. Had to dig out the nut
pocket as it had the first layer laydown across it, but I've no clue
where I might find a nut that small. Even the base hub is semi
transparent like the PLA feed was too slow to fill 100%, I can hold it
up in front of the monitor, shade it from the overhead lights and see
flashes of light coming thru between the strings in the nominally 6mm
thick base hub. I wouldn't call that more than 25% filled. And the
teeth are edgy enough to affect the service life of the belt.
So, redo it for a 10mm thick hub, and turn up the extruder feed to get
better fill? Or reduce the xy feed rate, giving the pla a better chance
to fill? Which stands the best chance to getting something usable on the
next pass? Then I need to make a bigger one, 28 or 32 teeth. To serve
as the Z drive on the Sheldon, first match the current tooth count just
to see if a 3NM motor is froggy enough.. Mainly because I have spare
belts for the existing rig. What I have obtained is a nema 34 to nema
23 adapter, and that won't change the belts tooth count since the motor
shaft won't move laterally.
Stay safe and well & thanks Chris.
Gene
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