Today, Alex and I were experimenting with 2 new types of 3D printed ball-holding jaw types for The Maker's Vise.

Let's start with what works:

Holding little metal ball bearings worked just beautifully! Very little pressure was needed to hold these balls securely in place. Even at full pressure, the plastic did not crunch-in at all! Everything works great.. Fantastic!

What didn't work:

This was my attempt at drilling though a Delrin ball with a hand drill. I drilled about halfway through the ball before the bit caught and started spinning it. The result was a ruined mess of melted plastic. Alex had warned me this wouldn't work.. and boy didn't it! Spectacular fail....

Edit: We have another idea to drill through balls that we'll test out in the future.