Hi, I have tested “nGen” filament by ColorFabb.
This is co-polyesters filament and elevated temperature resistance 85c. This is my point of advantage.
Http://nGen.colorfabb.com/what
Test print setting as followed
Just set temp 220c
And speed 65.
With BuildTak and hair splay.
it seems temp setting is key for printing.
I have tried 230c first but 220c is better for my printer.
Small but 10-15mm long bridge comes clear.
It’s acceptable finish for me.