|Project by poopiekat||posted 02-02-2010 05:12 PM||7251 views||3 times favorited||9 comments|
Just thought I’d take a moment to show a detail of an upcoming project. I’ve experimented in the past with aluminum machining with the use of a router and solide carbide bits, and generally got good results. This week, I had a machining problem regarding a spindle with a non-standard size, and tried out this method of machining to correct it.
I had earlier purchased a self-centering scroll chuck and mounted it to my Delta/Beaver woodworking lathe. I then bought an X-Y vise fixture with dovetail ways, and adapted it to the lathe bed. A package of cheezy Taiwan cutting bits, and away we go! I once cut ring grooves on aluminum pistons this way, but never did cold steel before!
In the pictures you’ll see the lathe, self-centering chuck, X-Y feed, and a steel hub which I am re-boring from 1/2 inch to 14 MM, approximately .556”. This will be fitted to the input shaft of a 90-degree mitre gearbox.
Anyway, the machining went off without any problems at all! Frequent applications of cutting oil, and constant measuring with my digital caliper and I wound up with a nicely turned press-fit between the hub and shaft.
Stay tuned for an update, this is all part of my current project I’m building. That is, a scratch-built lathe fixture which will do decorative helical cuts, spiral turnings and barley twists on newell posts, furniture legs and pedestals. I’m collecting pics as I go. I will do a complete overview here, once it all comes together.
Who’d ever thought that metal machining on a woodworking lathe was possible? Thanks for reading! Update: I added 3 more pics, first a shot of the relic lathe from which I will use the tailstock and bed. Next, a picture of a miter gearbox with the non-standard shaft sizes. There is nothing I could buy to fit those shafts, hence this little machining project featured here. 5th pic is one of two extruded aluminum ways, which will provide linear motion for the router. the gearbox will convert rotary motion from the lathe spindle to lateral power for a chain-driven mount for the router. The 6th pic shows a rudimentary mock-up of how the router will sit on the rails, attached to the trolleys. These rails are from some sort of nordic-trak exerciser, gawwd I hate to throw stuff away!.
-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!