I had a problem with my insert for a new Supernova2 chuck on a 5 month 1624 . The insert would not seat against the headstock spindle. After going astray and trying it on a couple of other Novas on which it did work Tim Geist at Teknatool led me through the process while on a few phone calls. It was nothing more than a burr on the hole for the set screw. It worked on the other Novas just due to a difference in the machining, probably a few thousandths.
Thanks to Tim Geist for walking me through the analysis.
Thanks to Tim Geist for walking me through the analysis.