Summary
A simple spider, perfect for hanging in a web this halloween!
I used OpenSCad to model this, and the scad file is included if you wish to customize at all.
You can print this all in one go if you'd like. Or, if your printer is capable of printing TPU, you can insert a filament change command at Layer 100 (and a ChangeAtZ command in Cura to adjust the print settings since TPU is more difficult to print).
Using TPU on the tops of the leg joints allow the legs to bend slightly while still being stiff.
Just be careful though since TPU and PLA don't always bond super well to each other!
Print Settings
Printer:
Profoge 3
Rafts:
No
Supports:
No
Resolution:
0.2mm
Infill:
25%
Notes:
There's an experimental feature in Cura called Fuzzy Skin. I enabled it on this print to make the spider looks less "cute" and a little more like a real tarantula. Fuzzy Skin makes it look slightly hairy.
Also, I used a brim to make sure that the legs don't fall over when printing since the outer leg doesn't connect to the main body until close to the end of the print. I set the Brim Width to 8mm (16 lines) with a Brim Distance of 0.1mm.
(Printing with a raft would have the same effect, though be careful you don't break the legs when pulling the raft off!)
How I Designed This
I used OpenSCad to design this model. I'm not much of a 3D modeler, and OpenSCad is very useful for modeling things using mathematics.
Anytime I model something with OpenSCad, I try to write the code in a way that anyone else could come in and modify it without having to know OpenSCad super well. This means using lots of constant variables when possible so that all you have to do is change one number and the whole model updates.
This model took me about 30 minutes to render once completed since I set the number of fragments to a high value to ensure a high quality stl model for 3D printing.
The first iteration of this had completely rounded tips on each leg touching the print bed and I had a ton of issues with the legs falling over (even when using a brim), so I adjusted the model so that there would be a slightly flat spot on the bottom of each leg which would give a little better adhesion to the bed, which worked perfectly!

Picture of the un-rendered model and some code in OpenSCad
태그
모델 소스
