Grafting feedscrew (Q from a new guy)

[EdK]

(04-29-2015, 10:54 PM)Dr Stan Wrote: Still does not sound right.  The spring pins could have been installed by an error at the factory.  IMHO I'd replace it with a very soft steel or even aluminum pin just to protect the more expensive parts of the lathe.

Not likely a factory error, more likely a design error.

How would one go about figuring out the correct diameter and material to use to replace the spring pins with shear pins?

Ed