Lathe duplicator, · I've recently branched out and started to turn stuff. I'm still new at this and getting the same results each time is still hard for me. In my searches I came across a lathe duplicator. This sounds like an awesome add-on. I was thinking of making one. Can I use a ...Lathe duplicator, · I myself have had a 400mm (15¾") long single post tool rest custom made by Vicmarc, it complements the standard 305mm (12") rest that came with my lathe. That longer tool rest is now my standard go to rest for most of my spindle work and anything else it is sized for.