Good morning Cole. I dont know if there is one right answer, depending on the quality of wood, (open grain vs closed, knots,and how it was cut, And Dont forget, if the wood is green or dried....) could make a difference. But having said that I normally leave 1/4" -1/2" for waist . (but that is just a general rule of thumb, for me.) If you want to be real frugal You could go much less, I mean if I use your example 3 1/2" square cut billet,You could make that square into a 3 1/2"round spindle in a prefect world, but I find that there will almost always be some error and you will find a small flat spot is you dont leave the room for the waist, (now if you can live with a small error, that fine, but if you cant? ...) I guess it depends on what you are looking to do and who is doing the work. I while back I was talking to Tim. (he was a machinist. and I am a pipe-fitter), we were talking about tolerances, He is use to working with in .001 ( or smaller.) and I told him a good pipefitter should work with in + or - 1/4". Now how do you find the common ground the tolerances are hugely different? For me Close is good, and for him Exact is a must. I hope this helps? ;-)
I have to get to work now. I hope you have a good day. C.A.G. ----- Original Message ----- From: "cole" <coleandrew...@gmail.com> To: legacy-ornamental-mills@googlegroups.com Sent: Friday, April 17, 2015 2:26:21 PM Subject: Waste When glueing up billets what is good rule of thumb to figure on waste? For example I want a round column of 3 in. Is 3 1/2 in square enough usually by the the time I turn it round? -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. Visit this group at http://groups.google.com/group/legacy-ornamental-mills. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Legacy Ornamental Mills" group. To unsubscribe from this group and stop receiving emails from it, send an email to legacy-ornamental-mills+unsubscr...@googlegroups.com. To post to this group, send email to legacy-ornamental-mills@googlegroups.com. Visit this group at http://groups.google.com/group/legacy-ornamental-mills. For more options, visit https://groups.google.com/d/optout.