Prusa upgraded to duet, weird extrusion

[droftarts]

@Murloc992 100th post! This is surprising. Sorry, we usually get these sorted a bit quicker. I don’t know much about oscilloscope readings, so can’t help there. But hopefully someone will! We'll get it sorted!

Ian

[Murloc992]

@droftarts In fact, the faster I print, the less artifacts I get. 15mm/s perimeter speed was in the previous pictures. 30mm/s perimeters give me less artifacts, 45mm/s feels like they don't really exist, 60mm/s erases them completely.

"Just don't print small things until you have 24V"?

[DocTrucker]

@Murloc992 those are some conservative speeds. Seen a track width of 0.45 mentioned. Are you running a normal 0.4mm nozzle? Layer thickness? E3D V6 with 0.4mm nozzle passing PLA at 210-230C can do 100mm/sec at 0.25mm layers and 0.48 track width.

Big thread, excuse me if those questions have been covered.

[Murloc992]

@DocTrucker said in Prusa upgraded to duet, weird extrusion:

@Murloc992 those are some conservative speeds. Seen a track width of 0.45 mentioned. Are you running a normal 0.4mm nozzle? Layer thickness? E3D V6 with 0.4mm nozzle passing PLA at 210-230C can do 100mm/sec at 0.25mm layers and 0.48 track width.

Big thread, excuse me if those questions have been covered.

Usually I print at 60-100mm/s using PETG. My hotend is genuine E3DV6 with 0.45 extrusion width. Right now I am experimenting with 200% speed modifier applied to my profile. The printer is literally flying and I can't see anything wrong with the print right now. 27 minute print seems to be completed in just 16.

[DocTrucker]

@Murloc992 what layer thickness are you using?

[Murloc992]

@DocTrucker said in Prusa upgraded to duet, weird extrusion:

@Murloc992 what layer thickness are you using?

0.2, tried 0.10, 0.16 and 0.24.

I just printed a part with ABS..

and..

there's almost no extruder artifacts..??? (except for printing ABS in open air, getting drooping on overhangs, etc.)

Maybe there are some vibrations, but no apparent diagonals.. Maybe a TINY bit of irregular extrusion..

Is it the filament I use, the PETG I mean..?

What..

So lost..

[DocTrucker]

PETG can run hotter than 210 with my machine but 230C on mine may well be similar to 210C on yours. That said my part quality isn't A1 either. Assume you're running minimal part cooling on anything other than overhangs? ABS is supposed to flow better than even PLA, but it stinks and irritates my throat so not tried it on my home machines.

[Murloc992]

@DocTrucker said in Prusa upgraded to duet, weird extrusion:

PETG can run hotter than 210 with my machine but 230C on mine may well be similar to 210C on yours. That said my part quality isn't A1 either. Assume you're running minimal part cooling on anything other than overhangs? ABS is supposed to flow better than even PLA, but it stinks and irritates my throat so not tried it on my home machines.

I print PETG at 250'C as per manufacturer.

There was no sufficient cooling and I think my bed thermistor setting is crap.

90'C bed results in a 102'C reading on my FLIR.

[DocTrucker]

@Murloc992 sorry, muddled two threads into one there. 210C was from a different thread.

[Murloc992]

ABS, a bit better cooling.

So it must be filament then?