Daily Archives: October 2, 2007

Experimentation with Needle Arms

In another attempt to reduce needle vibration in the longer needle arms, we are experimenting with tubing made from material other than metals. Today I constructed two new needle arms; one from acrylic and one from epoxy tubing. We hope that the dampening properties of plastics may reduce vibration at […]

Picokeystoning practice

We’ve been practicing picokeystoning with a very long arm that Dave made.  Although it works, the cuts are rougher than we’d like because of vibration. The vibration has never been a problem with short arms, but very small vibrations on the needle are probably amplified because they are out on this […]