Is one of them newfangled options for a plastic filament to feed to one's old FDM-type 3D printer. Sumdood on the U-Toobz was showcasing it a few weeks ago.
Anyway, I bought some to try out. Left a (lengthy) print running into the night, having dialed the extruder temperature up slightly, and the bed tempeature down considerably, from the settings I'd been using for ABS.
Come the morning? Print quality looks good. Like, way better than any results I'd seen with ABS or PLA. But, after several hours of sitting around in a cool garage after the printer shut down, the raft is hard and crunchy and not coming off worth anything - it just snaps off at the edge of where the product begins.
So I stuck it in the oven (on quite a low temperature, as ovens go) to soften a bit. Will try again later at removing the raft and supports.
Update: Warming it up to almost-too-hot-to-handle does help... until the object cools down. Let's face it: this stuff is crunchy, and ain't gonna peel nicely. But, with a small chisel? Comes off just fine.
Finish on the sides and such top as there is looks nice and slick and probably watertight, apart from the designed-in openings. Finish on the as-fabricated bottom (the face wherefrom the raft gets removed) is decidedly porous; this may be a function of the slicer settings. Anyway, there are ways of waterproofing such things; it's surprising what a lick of paint'll do. (The roof of the structure is fabricated on the bottom to save on support material and build time, so there is a porous surface in need of waterproofing. I should probably paint the whole thing anyway, as it's going to be sitting out in the sunshine.)
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