Glass-Filled ABS prints at about 260 °C with a 100 °C bed and 0% part cooling. Usable range 245–275 °C nozzle, 90–110 °C bed. Needs an enclosure.
ABS-GFGF ABSGlass Fibre ABSGlass Fiber ABS
Starting settings
Nozzle
245–275 °C (start 260)
Bed
90–110 °C (start 100)
Part fan
0–20% (start 0%)
Wall speed
25–45 mm/s
Max volumetric flow
9 mm³/s
Shrinkage
0.4%
Softens at
105 °C
Enclosure
Required
Nozzle size
0.4 mm or larger — 0.6 mm recommended
Nozzle material
Hardened steel required — this is abrasive
Drying
70 °C for 4 h
Speed
A little slower than plain ABS, 25–45 mm/s. Chamber temperature still matters more than feed rate.
Bed surface
Smooth PEI at 100 °C inside an enclosure.
Nozzle
Hardened steel, 0.6 mm preferred.
What bites people
The reason to buy this over plain ABS is WARPING. Glass fill cuts shrinkage from roughly 0.8% to nearer 0.4%, which is the difference between a large part lifting and a large part staying down.
Still needs an enclosure. Filled ABS warps less, not none, and the fill does nothing about layer splitting in a cold draught.
Hardened steel nozzle required.
Stiffer and more heat resistant than plain ABS, and noticeably more brittle in thin walls.
Safety
Same styrene-family emissions as ABS. Ventilate to outside air or filter properly.
Abrasive — hardened nozzle required.
Do not sand without a mask. Glass fibre dust is a respiratory irritant.