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Re: New project - Terz-shaped 00-12

Posted: Wed Apr 08, 2015 12:37 pm
by Dave Bagwill
Sure and I have done that a number of times, in fact that's how Brian Burns taught me to do it. If you want to do both sides at once, however, you do need two forms at least 4 1/2" wide, that's a lot of 3/4" mdf. This way I have one form, but use all those clamps. Either way it is very easy.

Re: New project - Terz-shaped 00-12

Posted: Wed Apr 08, 2015 2:51 pm
by ken cierp
Here's a mold/form design I had thought about selling -- too labor intense for our shop but really nice and solid. Can be covered with metal furnace tape to use with a heat blanket. The construction trick is the special super bendable plywood I purchased from the east coast.

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Re: New project - Terz-shaped 00-12

Posted: Wed Apr 08, 2015 3:12 pm
by Dave Bagwill
Excellent. That would work very nicely with a vacuum set up as well.

Re: New project - Terz-shaped 00-12

Posted: Wed Apr 08, 2015 9:40 pm
by John Parchem
The hollow "solid mold" looks like a very good idea.

Re: New project - Terz-shaped 00-12

Posted: Sat Apr 11, 2015 1:30 pm
by ken cierp
I did have to pre-bend the plywood just a little to get it to conform to the waist curve, they sell another product called Wacky wood that is not as flexible.

Re: New project - Terz-shaped 00-12

Posted: Sat Apr 11, 2015 2:02 pm
by Dave Bagwill
Somewhere on the forum I posted a pic of a mold I made using bendable plywood. I need to get some more.

Re: New project - Terz-shaped 00-12

Posted: Thu Apr 16, 2015 9:05 pm
by Dave Bagwill
Along with the sitka/maple "Terz", I decided to use some odds/ends to try another shape, and came up with a 001/2-14. It has the same lower bout as a 000, but is curvier than a 00, and what the hey why not do a cutaway? The sides were donated to me as they cracked when someone was trying a new shape; the top is just an oddball that I had ordered, that got here with a number of problems, some of which I can eliminate through judicious trimming down to size, and one problem - the soundhole area - I could reinforce and I think it will work.
I think I'll try the Dolphin + 1/2 bracing scheme.
Anyway it will be a fun diversion as I devote most of my time to the Terz.