Penny Ballista with Filabot Recycled ABS


download I’m about halfway through the demo spool that Filabot shipped out to me a few weeks ago so I could test their ABS recycling program.

The spool’s given up all pretense of maintaining its orange color and has now faded completely to ABS Natural. This is intentional on Filabot’s part because they’ve sent me what they call an extruder purge– basically a spool created while cleaning a color out of the Filabot.

Earlier I speculated that the recycled ABS was more brittle than other ABSes, but I found that to be a quirk of a short stretch of the filament. I did get a little more powdering and snapped filaments than usual for a while, but a few meters into the spool the problem went away.

This type of problem is consistent with other rolls of ABS I’ve used in the past and as far as I’m concerned it’s just part of hobbyist 3D printing. All ABSes are not created equal and there’s going to be some gremlins along the way.

This ballista will easily launch a U.S. penny across the room using a single rubber band, and I’ll betcha it’ll crack your fancy triple-pane thermal windows or ding your stainless steel fridge. Be careful with this thing and don’t shoot the cat.

Flagrant stagecraft alert: There’s a twist tie holding the nock in firing position for the photo.

What do you think?