Go to homepage
1 / 9
Jul 2015
3 months later

This thread is a few months old already but I wanted to document my recent experiences with ABS on the Zmorph. I’m printing 1.75mm Hatchbox ABS purchased through Anazon, using the 245C / 100C temperatures (nozzle / bed). My best prints have used rafts on glass. When I remove the raft, I find that calibrating the glass flatness and optimizing the filament extrusion speed is critical to getting parts that don’t warp as much. Also - any parts with cross sections thicker than 1.5 cm with thin aspect ratios (long and thin and thick) will warp no matter what, even if I crank up the bed temperature. I can usually tell by the opacity of the printed layers of warping will occur. Layers that are translucent usually do not warp - if I see the plastic going cloudy I know the part will be twisting up off the glass soon.

My answer to ABS’s persnickety properties? I switched to PETG. The same troublesome parts in ABS print like a dream in PETG (poly(ethylene terephthalate) - glycol modified) - with no warping that I can see so far. I’m running at same conditions as ABS and I can print directly on glass with no tape, kapton or ABS juice. PETG has the toughness of nylon with the ease of printing PLA. Give it a try and you may leave ABS behind.