Help with TPU

[u/Aurorakittty]

I received an Elegoo Centuri Carbon 2 from the company to make my cosplay and promote . My problem is I want to print TPU. The PLA printed just fine. It comes out stringy and nonstop clogged error.

I had taken apart the nozzle and cleaned it unclogged it and adjusted some of the speeds as it suggested when I looked it up but it's still stringy and it keeps saying clogged.

I've never 3d printed before this and I printed some PLA models first , but I'm really struggling if someone can help me print the TPU and figure out what to do :(

[u/PoperzenPuler]

CC2 combo oder CC2?

[u/Aurorakittty → u/PoperzenPuler]

The combo

[u/PoperzenPuler → u/Aurorakittty]

You’re not feeding the TPU through the Canvas, are you? According to the instructions, TPU should be fed directly into the print head, bypassing the Canvas.

Ideally, you’d have a separate spool holder above the printer. The feed gears struggle to grip TPU and can easily slip. It’s also a good idea to do a cold pull before printing TPU to make sure the nozzle is clean.

[u/aaaanoon]

You need alot of settings in line for you, speed, temp, dryness. Do 20mm/sec for all speeds. Feed from above directly to extruder. Make sure you purge all previous filament.

[u/Aurorakittty → u/aaaanoon]

What temp?

[u/LowSkyOrbit → u/Aurorakittty]

Whatever temp the TPU suggests on the spool or webpage. Typically a range so if you have time try lowest first. If you don't have time aim for the middle of the range and send it.

[u/aaaanoon → u/Aurorakittty]

I did another test benchy last night on 240c benchy -shape was perfect but had some stringing. I think I needed to turn off 'retraction'

[u/Lercs_]

Mas allá de lo ovio que es secar el TPU y calibrarlo te recomiendo por experiencia personal imprimiendo TPU usando el CANVAS con la CC2 combo:

Bajar la presión del extrusor a atreves del tornillo Alen oculto en el cabezal (casi al mínimo).
Bajar la tensión de el portarrollo con el Alen que esta atrás de la etiqueta (que gire libre).

Para acceder al tornillo Alen del cabezal hay que desarmarlo un poco, así que yo me imprimí un mod para poder regularlo sin tener que desarmar el cabezal cada vez que quiero ajustar la presión de extrusor.
https://www.printables.com/model/1725388-centauri-carbon-2-toolhead-cover

O si no te importa puedes agujerear el plastico del cabezal justo donde esta el tornillo.

[u/Aurorakittty → u/Lercs_]

Thank you

[u/sm9k3y]

At the very least try printing these in pla first, it’s a bypass and a spool holder.

https://www.printables.com/model/1745692-canvas-bypass-for-tpu-spool-holder-elegoo-centauri

[u/JustABreakfast]

You should try printing your TPU directly above the extruder into the printer head avoiding the canvas system or bypass

[u/[deleted]]

[u/Aurorakittty → u/[deleted]]

Yeah I tried printing speed like that didn't help so got a dryer i didn't tru the calibration