by HeroXero

The abdomen on the original thing was too huge for my 3d printer, so rather than shrinking it down, I split the abdomen in half using Tinkercad, and then spent many hours printing it, using glow-in-the-dark filament.

Print Settings

Printer Brand:                      

Dremel Digilab

Printer:                      

3D40

Rafts:                      

No

Supports:                      

Yes

Notes:

I tried printing the abdomen with no base, and it warped badly. Better to print it with a honking  thick base layer (5 thick or more). The thorax requires supports, but the abdomen halves don't. And I printed the legs with supports, though I probably could have gotten away without them.

I printed the abdomen and the thorax with 10% infill, but I thought the legs needed more. As it is, the leg joints are pretty loose, so they're don't provide any support at all. (Though they are flexible, the spider is only but so "posable," though I bet if I glued the leg joints, it would be fine.) I was able to fit the 4 sets of leg parts in one print. You need 8 legs, total.

All totalled, I think this print took about 29 hours. (ab1 and 2 were about 6h15m each; thorax was 7h; and the legs were 2x 4h45m.) And I used glow-in-the-dark filament.

How I Designed This

I pulled the original abdomen stl file into tinkercad, and turned it on its side, then I lowered it exactly halfway down through the workplane, and put a huge box shape in hole mode underneath the workplane, and combined the abdomen and the box, which left me with a precise right half of the abdomen. I'm pretty certain the hidden half of the abdomen was a mirror image of the half I had, but just to be on the safe side, I ungrouped the objects, rotated the abdomen shape 180 degrees and then joined the shapes back up again, generating the left half.