|Project by footprints||posted 12-22-2013 05:11 PM||1540 views||10 times favorited||4 comments|
This homemade face plate to hold bowls was made possible by a discovery at Home Depot. While digging around in the specialty hardware section (you know, the weird stuff they have in tiers of drawers) I discovered what they call an expandable nut. This is a 1/4-20 nut molded into a 13/16 long rubber sleeve. When you tighten it down, the rubber bulges out.
I band sawed a rough circle of melamine covered particle board and mounted it to the 4” diameter metal faceplate of my lathe and turned it true. Twelve 1/4” slots were routed through the faceplate and the expandable nuts threaded onto bolts. I bring the tail stock of the lathe up against the center of the bottom of the bowl to hold it in place while the bolts are tightened to hold the bowl. A large hose clamp goes around the circumference of the bolts to apply inward pressure and you are ready to turn the base of the bowl. It works very well.
Here is my first attempt at a segmented bowl from zebra wood and blood wood. I learned a lot, made quite a few mistakes and look forward to trying again soon. These types of really hard woods dull even the best turning tool quickly so I bought some tungsten carbide inserts (available from Harrison Industries and Amazon) and mounted them on some 1/2” steel square bar stock. They last forever and when they get dull you just rotate them to a new edge.
-- Ray, Phoenix, Maryland