|Forum topic by poospleasures||posted 10-29-2014 11:35 PM||1061 views||2 times favorited||10 replies|
10-29-2014 11:35 PM
I have a set of flat jaws which will hold 8 inch bowls for finishing the bottom which work well. A few months ago found myself wanting to do some larger plates and bowls. Did not want to wait, or to pay the price for flat jaw extensions. I have some heavy aluminum alloy road signs given to me by our state hwy road crews. These are very rigid and strong and easy worked with bi metal tools. Used this material for my extensions and several other jigs and stuff.
You need to be pretty accurate for all the hole drilling required. You can use the rubber retainers from the original jaws or the ones like mine which came from lowes. They are tapered hard rubber stoppers which have 6mm holes drilled thru. They hold many times better than the ones that come with the jaws. Next pic shows the back and ugly side of the extensions.
I wanted to use them a while before showing them to you all. These pics show the 6th bowl they were used for. I always start by using tailstock support until I,m assured bowl is holding well with no wabble.
This is after some finishing and without the tailstock support and knowing it is holding well.
I usually start at about 200 rpm and increase on up to about 500. This one shows spinning at 500.
Hope I didn’t leave out anything. Thanks to everyone for looking. Always interested in questions and comments.
-- I,ve had amnesia for as long as I can remember. Vernon