Ontopic The 3D printing thread

gee

Blame It On The Gassa Nova
Sep 29, 2012
12,499
12,831
113
Halifax
Marklar
26,017.32₥
Smooth idler is probably your issue. It squishes the teeth as they go around it.

smooth idlers = for backs of belts
toothed idlers = for fronts of belts

But of course china don't get that shit right.
 

Jehannum

Eats bananas with the peel still on
Jul 24, 2013
28,803
28,269
113
Albuquerque, NM
Marklar
77,156.58₥
For shits and giggles, I tried out a printed toothed idler. It doesn't fit on the X gantry, would need a belt a few teeth longer.

I'm fadoodling my way through a benchy with it on the Y axis, though. Probably won't make any difference for me.
 

Mr. Asa

Extra Medium Tedium
Sep 27, 2012
43,590
16,479
113
Tampa-ish
Marklar
56,137.63₥
Steam
asastang
Wanted to design a planter for an airplant. I would think there would be enough inherent support in here for it to survive without supports, but I'm curious as to whether it would. Triangles start as a 3/4" to a side at the base then curve up to 3/8 where they meet in the center.

Capture32.PNG
 

Jehannum

Eats bananas with the peel still on
Jul 24, 2013
28,803
28,269
113
Albuquerque, NM
Marklar
77,156.58₥
I was thinking the same. I still am having stringing issues, but I think I have an idea why. Once the glass bed gets in I will be able to do a few benchies and see if I'm right.
you have retraction and z-hop enabled in cura? That takes care of most of the stringing and blobbing for me. The only other time I've had that happen was if the temperature was wrong (but that's usually accompanied by extruder popping).
 

Mr. Asa

Extra Medium Tedium
Sep 27, 2012
43,590
16,479
113
Tampa-ish
Marklar
56,137.63₥
Steam
asastang
I do. Up to 10mm retraction by now? 240°C? (230-250° range for this filament) The lower the temp, the less stringing, but at the bottom range I get delamination of the print.

I think the bed being warped causes some overextrusion on the first few layers and that causes a little bit of plastic to glob onto the nozzle. From there it gets just enough build up during prints to string between items.

My thoughts, at least.