3D College — 3D Printing Guides, Tips & Industry News
Twist Instead of Push: Worm Drives, Helical Gears and the...
3D printed worm drives and helical gears: how to pick a ratio, handle axial thrust, avoid the wrong hand, and print at an angle so the teeth survive load.
Broken in a Way Only Plastics Break: A Field Guide...
A broken 3D printed part is a record of how it died. Learn to read the break face, separate design from process causes, and run tests that actually settle the question.
Clicks, Paws and Springs: 3D Printing a Mechanism That Steps,...
How to 3D print ratchets, pawls, detents and spring-loaded mechanisms that hold their position: tooth geometry, root stress, spring rate, energy storage and what fails silently.
Gauges, Jigs and Holders: 3D Printing the Shop Tooling That...
Print the tooling, not just the parts. How 3D printed gauges, jigs, fixtures and holders cut setup time, catch errors early and make every batch come out the same.
Vacuum, Bellows and Blow: Designing 3D Printed Pneumatic Parts That...
What changes when air is the payload instead of a load: material permeation, cup lip geometry, bellows stroke limits, valve seating, duct pressure drop, and how to test a printed pneumatic part in twenty minutes without instrumentation.