I'm printing parts for a HEVO (HyperCube Evolution CoreXY), using Colorfabb XT filament. After several successful prints. I'm having a lot of failed prints. They start off pretty well but after ~15 layers the filament starts to string and blob.
Model: RepRap i3 Extruder: E3D 1.75 all metal hotend. Nozzle: .4 Print temp: 260°C (max. recommended).
Steps I took to troubleshoot
- First I thought my nozzle was clogged. But it's not I can push the filament by hand without issues.
- Lowered the speed to 35 mm/s.
- Disabled retraction / disabled part cooling.
- increased the max temp with 10 % to ensure the filament flow
Printed parts that fail:
UPDATE 26/07 Dit a few more prints with PETG to eliminate the moisture problem. Same results.