I
picked up some really nice mystery wood today at the local wood waste dump, so, inspired by Bob's post a while back, I decided to spend a couple hours this afternoon welding up a draw knife so I had an excuse to turn some handles out of the new wood. I came up with this:
I just used a scrap 6" piece of planer knife that I got from the mill. I pretty much have a lifetime's supply of planer/chipper knife and saw steel to work with. The handles are 5/16" Grade 8 bolts that have been cut down, and are set at 30° to the knife. I left the threads on the ends to help the epoxy hold in the wood.
I used 6013 rods, 5/32" diameter, just little wee guys. They can be difficult to control because they're so flexible, but they don't require much heat at all and I didn't want to bugger the tempering of the blade. I left the welds on the backside because they turned out pretty well, but I ground them down nice and smooth for appearances' sake on the topside.
Just a closeup of the wood handle. I wish the photo would show the depth in the grain. This stuff's just beautiful. It's not terribly hard though, but a few coats of Polyurethane will help that. So far I just rubbed some paraffin wax on it while it was on the lathe. I find that does a pretty good basic job on most things. I hold the backside of some emery cloth strip against it and burnish it, so it heats the wax up and melts it right into the pores of the wood. After a couple applications it'll hold a nice shine and feel finished, but not feel waxy or anything.
I have a question for my fellow toolmakers. Have you ever noticed that you tend to naturally make things to fit your own hands (or body etc.) without even taking the time to measure? For instance with these handles, I never made a pattern or anything, I just turned one out freehand, and then turned the other to match it. And they fit my grip perfectly - my thumb ends up ahead of the ridge, mostly on the brass ferrule. I dunno, maybe it's just me, but it seems to happen again and again.