An alternative, non threaded crank and worm for the $3.47 3D Scanner

thingiverse

I was having trouble fine-tuning the crank assembly for my $3.47 3D Scanner that datac designed, so I headed into Blender and created a square joint because my threads were printing out too large for the crank to connect securely with the worm gear. To strengthen my print, I boosted the infill to 40%, making it more solid. You may need to shave the crank's square portion to fit snugly into the worm's slot; I did just that and was able to get it working great. I give all credit to datac for their hard work on this project, as my contribution was merely 5 minutes of arranging shapes in Blender. I forgot to mention that I'm still a beginner with 3D printing, so I'm confident that others will discover an easier way to make this work. For anyone struggling to get this print right, I hope this tip is helpful. If I inadvertently broke any rules, please let me know and I'll remove this post. Edit: It's probably wise to have some kind of adhesive on hand to keep the worm and crank securely fastened together.