Bad Purge tower
I'm currently trying to print petg with soluble support but purge tower is always breaking.
like this:
is there anything I can do about this?
Re: Bad Purge tower
Hello,
what soluble material are you using?
We have not found a soluble material to work with PETG yet.
Re: Bad Purge tower
It is a pretty cheap one
https://www.amazon.de/gp/aw/d/B0742GZCFS/ref=oh_aui_i_d_old_o4_img?ie=UTF8&psc=1
Re: Bad Purge tower
I have actually discovered that increasing the temperature solves this problem but then the soluble material sometimes block's the petg at the collor change
Re: Bad Purge tower
I think what you are being told is that there is too large a temperature difference with PVA + PET.
PVA needs to be printed at the lower end of the temperature range (190) and there is insufficient time for a temperature change.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Bad Purge tower
So I'd need plastik with lower print
temperature to print with PVA? or should I only decrease the print
temperature of the PVA and the speed for the purge tower(wich speed setting affects the tower?)
so it hopefully doesn't get destoyed?
Re: Bad Purge tower
From the earliest mention of the MMU by Josef, it was made clear that it was only possible to use filaments with similar print temperatures.
PVA will print OK at 190 to 195 degrees and PLA at 200 to 205 degrees.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Bad Purge tower
Thanks for the help. I'll try to print the model with PVA and PLA
PS. I have got an idea on how to print with materials with different temperatures: instead of directly switching from PVA to petg you could use another material in between for example PLA. This would mean first going from PVA to PLA and then from PLA to PETG.