This is a small hunk of pear crotch with a large crack and exposed bark. The green wood was rough turned in July, it has dried enough for a final turning.
Totally size was about 7" or so. Finished with shellac
https://www.youtube.com/watch?v=LgW85wSCxTI
Hi Peter,
Thanks for making the video...!
Yes, I agree, I've seen lots of system to finish the bowls base/feet but I don't recall to have seen that one before (I may be wrong, as I forget things quite fast...
), it seems to work great and a lot steadier/safe than most other jigs, I don't know if you are the inventor or not but I'm sure, you can clarify that to us, huh...???:wink:
There is one aspect/detail that I would like to bring members attention to, if you are going to "copy" this jig design and that is, I see that Peter has done his out of plywood, and while it is a great material to do jigs with, there is one problem that you should be aware of and void and that is, when you are cutting the groove on the back of the jig to attach to the lathe chuck, void using the "contraction" method and use the "expansion" method instead, why...??? because in the contraction mode (the jaws close into the spigot/protrusion of the plywood, to grab the jig...!) regardless if you use a 50mm or 75mm jaws, the jig can "snap off" at the jig end, this is due to the contraction and torsion forces if you have a catch, its the way plywood is constructed that allow this to happen while, if you use the "expansion" mode/method, the plywood is a lot stronger and will be a lot safer, I know this because I done lots of jigs using plywood and the contraction mode to attach to the chuck, has failed in almost all of then, it may not happen straight away, as a lot will depend of the jig size, the size and weight of the pieces attached to it, lathe speed and how bad that catch is.
Another thing to remember is, the expansion mode require a certain amount of plywood be left on the jig's outer edge, too thin of an edge and the jaws will rip the plywood apart...!
Cheers
George
