#Weird Artifacts when layers get small & fast

17 messages · Page 1 of 1 (latest)

flat zenith
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Strange issue I'm seeing with my new IDEX setup on VC4. Print quality could still be improved but is overall pretty decent, until nozzle swaps start occurring and layer times get very short. Things I've tired without any noticable change:

  • Adjusting temperature (ABS from 243 to 265)
  • Adjusting pressure advance all the way down to 0
  • Slowing down MASSIVELY (setting kliiper to 40% speed factor

Still all print look very very similar (some I stopped early but you get the idea). What else am I not thinking of that could be causing this that I can try to rule out?

IMG_1245.jpg IMG_1246.jpg
sour sinewBOT
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tacit yarrow
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How tight is the screw on your orbiter tension lever? I had a similar print result with a screw that was much too tight. That led to filament getting grinded slightly. Especially when doing small, fast moves.

The right tension for me is actually quite low, just maybe two full turns after the screw grabs onto the orbiter.

flat zenith
stiff inlet
flat zenith
# stiff inlet Do you have an update on that if that changed things? Curious to know if this co...

Sorry, yes. It unfortunately did not. Let's just say the possibility of un-idex'ing this thing is still definitely not outside the realm of possibility.

Even slowing printing down to ~100mm/s and 2k accel is still pretty awful. About the only thing I haven't tried yet is pulling the spools off of their holders inside the printer, and just putting them on some super smooth rollers to eliminate any form of resistance from the possibility list

stiff inlet
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I got told that the benchy is a hardcore scenario for idex - I'm seeing the same artifacts on my benchys. I wanted to print something else but sadly my endstop gave up so I can't test further

flat zenith
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It might be a harder test, but the prints I'm getting so far make it seem impossible, which it shouldn't be.... especially at very very slow speeds

flat zenith
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@stiff inlet here goes nothing lol cross your fingers could get messy 😂

IMG_1254.jpg
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Another benchy attempt, again at a (crazy slow) 100mm/s & 2k....trying to burn everything back to the ground and see if this thing is even capable of giving a reasonable quality print 😔

stiff inlet
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how are your is graphs looking?

tacit yarrow
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Do you have the same artifacting with other filament like pla? You could try that with a generic profile for pla.

flat zenith
flat zenith
# stiff inlet how are your is graphs looking?

Haven't even messed with IS yet but this is on my hopefully this weekend. Never felt like I could fully get the hybrid belts to the point where they a) weren't floppy and b) didn't makes my graphs look less than ideal on hybrid to begin with so I'm not holding out a ton of hope that they don't look rough on IDEX lol

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But I plan to look into that more this weekend...hopefully

tacit yarrow