PETG question
Posted: Tue Jul 31, 2018 5:56 am
I decided to try out PETG over the weekend and basically spent the entire time playing around with settings to try to get the perfect print. Thanks to Jules guide , I had a good head start. I ran into a few problems though that I have yet to figure out. I was hoping somebody here would be able to identify where my prints are going wrong.
Note that I'm printing on an M2 with dual extruders using esun's solid grey PETG and slicing with S3D. I just upgraded to the dual so this filament is the only one that has been through this nozzle.
The first problem arose after printing the extrusion calibration cube. I was all set with a wall thickness of 0.45mm to match the extrusion width settings in S3D. From there, I printed the cube again, only this time with top/bottom layers, infill, and 3 perimeters. The two outer perimeters were only attached to the rest of the print at the corners. I found I had to drastically increase the extrusion width (from 0.86 to nearly 1.0) to start seeing the perimeters bond to the print. This doesn't sound like a good solution though. Any ideas?
The second problem can be seen in the picture below. I have small gaps in certain areas between layers. I've been playing around with print speeds, temperature, and cooling but I've had no luck. I'm wondering if this may be retraction related? Or a symptom of only having a single perimeter?
Note that I'm printing on an M2 with dual extruders using esun's solid grey PETG and slicing with S3D. I just upgraded to the dual so this filament is the only one that has been through this nozzle.
The first problem arose after printing the extrusion calibration cube. I was all set with a wall thickness of 0.45mm to match the extrusion width settings in S3D. From there, I printed the cube again, only this time with top/bottom layers, infill, and 3 perimeters. The two outer perimeters were only attached to the rest of the print at the corners. I found I had to drastically increase the extrusion width (from 0.86 to nearly 1.0) to start seeing the perimeters bond to the print. This doesn't sound like a good solution though. Any ideas?
The second problem can be seen in the picture below. I have small gaps in certain areas between layers. I've been playing around with print speeds, temperature, and cooling but I've had no luck. I'm wondering if this may be retraction related? Or a symptom of only having a single perimeter?