Uneven extrusion on thin wall
I'm trying to create punchable holes for an electronics box by having round areas in the box of only 0.4mm thickness. While the thicker walls print just fine, these thin walls have extrusion issues as you can see in the attached image. What could be causing these issues?
The material is PETG and I'm using Orbiter 1.5 together with A Dragon HF hotend
I've printed 0.4mm walls in vase mode which are fine, the issue seems to be when I have different wall thickness. I've tuned pressure advance as well a retract which were the first things that came to my mind as causes
3 Replies
What size nozzle are you using?
stormy-gold•2y ago
I was using this one 0.4mm version of Trianglelab T-V6 Plated Copper Nozzle Durable Non-stick High Performance For 3D Printers M6 Thread For V6 Dragon Hotend
https://a.aliexpress.com/_mrK2aOM
I'd try a few things... First, maybe switch to pla until you get good results... I find petg to be a very finicky material in terms of dialing in good settimgs... Seems to have a very narrow window in which you get good prints... I'd also consider changing the width of your knockout to exactly match the line width that your profile is set up with... See if either of those things help... With respect to petg, looks like your profile could use some general tuning in extrusion mult, PA, and layer stop/start adjustments
If you can get it to print well in PLA, then we can try petg...