I’m having very bad time tryng to print PETG, primaSELECT PETG Solid Silver.
I have tried thier temperatures, among with lower settings, prusa settings, increase extruding rate to 1.11 based on my calcs, change retraction but nothing helped, problems at any settings i try!
Print well with Prusa PETG and Moebyus PETG without any problem but this primaselect is a pain.
Also create a lot of strings.
I’m using latest Slic3r Prusa Edition with MK2S stock
Thank you, i raise to 0.300 instead of 0.200 and solved my problem.
Still model come with imperfections
Bottom layer come all good, no imperfection
With this setting i got a bit less of strings, still not that less.
Also surface is not clean as other filaments, a tiny dot of filament is left on top layer but that can be easly cleaned, no more than 20 dots.
And last it left some scars on model
Seens this PETG melt at lower temps, i’m using the max recommened 230-235 but it works at 190. Can this be a problem in terms of resistance?
I print this without setting overextrude overall, my calcs give 1.11% rate but i print a test model and come worse than 1%. Also in octoprint i use to extrude 100mm at 111 rate and it stop exactly at same position if i use prusa lcd controls to extrude 100mm. Can’t understand this, if flow rate is 0.11% more why it stops exactly at same height?
Most PETG that I have seen has a temp range of 230-250. If this extrudes at 190 I would be somewhat suspicious of it. That is really low.
In general PETG is probably going to want a slight under extrusion.
As far as extrusion I would use the Prusa default and only adjust a little from there. You will want to calibrate the extruder at some point. You will need to go to the Prusa forum or google on how to do it for that machine.
You can work with the retraction settings for the stringing. Some filament brands are worse than others.
Print speed will also play a factor. Overall I used the default PET settings in Slic3r PE for PETG then adjust a little to fine tune and it has worked good.
I do not use Octoprint but if you are just telling it to extrude X amount then that is all it is doing so whether it is from the control panel or Octoprint it is the same.
I think the flow rate doesn’t matter there. You are just telling it to move 100mm of filament or what it thinks is 100mm.
Bed temp: 35-60ºc (On website they say heatbed no required)
I have to say that i test low temp, like 200 and 210, but it comes a little weak and tends to not stick well.
Prusa PET profile works well for this, i have cloned the profile and change temperature to 230-235 and bed to 50-55. Since this print with lower bed temperature is good, bed take a lot of time to heat up at high temperatures and also spare electricity
About retraction i tried many different settings and run a test model that i found on thingverse, didn’t help.
But i will keep testing, it must have an optimal setting
Can this be any kind of easy to print PETG?
I just buy this because its accessible in europe, i can’t find eSun PETG inside europe.
Bad experience too here with PrimaSelect PETG, even exactly the same color … Looks best at 220-225C (fan Off), retract 1.2@20 gives almost no stringing, but the resulting things even not looking that bad are super fragile - no, they do not delaminate, they broke with bare hands …
My problem was calibration, since my bed are distorced, i have to modify firmware to support 9 point manual calibration, it solve my problem. I found this filament to be strong, do you use a heatbed? Please see my review on thing verse, you have a temp tower
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