ASA overhangs
I'm having trouble printing bed arms in ASA. I'm running the "latest" RatRig toolhead with Orbiter 2 5 and can get my chamber up to 45C (so far) and overhangs appear terrible in an otherwise flawless print. Fans are at stock RR Generic Orca ASA speeds, any more and the whole thing warps. I tried bringing nozzle and bed temps down to 250/100, with little improvement
4 Replies
What are your fan speeds?
Best settings so far but still warping, nozzle 260 bed 110
warping right at the large opening for the magnet
posted without replying
So, in a chamber that's holding 45c, I'd try (and I'll give prusaslicer style settings, which I'm sure you can sort out)
0 fan for first two layers
20% fan speed by layer 8
No fan speed or layer speed variation: Stick with 20%, and set like all speeds to 50mms and bridging to 30mms. Bridging can be tested at 30% fan speed. Also, if you can bring down the bridge extrusion alone just a little more, that might help too.
Bed, iirc, try 100 first layer, 105 for following layers (I think). Filament was 250
Check your EM too. I run ASA down at like .92
And I'll usually print 2x ASA objects of the same height on different sides of the bed. Generally helps with ASA overall for me.
I used these settings to print some replacement parts for my MK4 w/ Polymaker ASA, and they turned out pretty good.
