I'm drawing up plans for a woodworking bench and have been debating different approaches for a tail or wagon vise. I really like the simplicity and smaller form factor of the Veritas Inset Vise, but my budget is limited and I can't justify dropping >$100 on an accessory gadget that could just as easily be replaced by two bench dogs and a pair of sliding wedges.
In my search for different affordable screw options I stumbled on some multi start screws used in 3D printers that might just do the job.
Questions:
1) Is the 8mm screw going to be strong enough?
2) How much weight/pressure can pillow bearings hold?
LINK: T8, 4 Start acme thread, 3D Printer Screw as tail vise
T8 4 start screw and nuts.jpg
If anyone has any experience using these or has an alternative budget option for thicker multi start screws/nuts please share.
-Jon