Problem encountered while printing with PETG, HELP needed!
Hi everyone, I have a quick question toward my PRUSA i3 Mk3. So, I was printing with PETG earlier, and the first layer printing was as shown in the picture attached. I was thinking the nozzle is too close to the sheet, so I ran a 1st layer calibration, but the result does not look fairly good though. Then, when I took a look of the nozzle, there was little filament segments extruded from the nozzle even before the printing starts. As I kept the nozzle temp high (250), there was stringy filament kept coming out of the nozzle. After I unload it, it looks like what the picture shows. I am wondering what's going on? Is the nozzle clogged? How should I fix it? Please help me, thanks!
RE: Problem encountered while printing with PETG, HELP needed!
I do allot of printing with PETG. I do find a little bit of oozing when I first load the filament but now what you are seeing. PETG will absorb moisture so it could be a moisture in the filament issue. It does look like your Z height is wrong. What do you measure for the thickness of your Z calibration print? I measure mine. 250 degrees may be to hot for your PETG. I have a brand where the manufacturers specs top out at 240 degrees. Even with a steel nozzle, I don't go above 240 with any of my PETG after temp tower tests.
Also, check your extruder gear teeth for clogging and tension.
On a side note, I had run into an issue with a print the other day with missing points in the first layer. Turned out that the spool was sticking on the holder spindle.