Michael Darnton Moderator
Joined: 23 Mar 2007 Posts: 1286 Location: Chicago
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Posted: Fri Jan 11, 2013 12:22 pm Post subject: |
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The general procedure is to make a plaster cast of the back for support in cutting and gluing, using, for instance, saran wrap as a protective barrier, building a wall to hold the plaster, and being sure to reinforce the plaster and put on a wood backing for clamping, while it's still wet. You will/may have to adjust the plaster after it's dry if there's a step or distortion at or near the crack, by scraping, filling, scraping and filling, until it's right. That's the short form description of making casts.
Then you clamp in the back, carve out the old patch, clean and glue the crack, and fit a new patch.
For the crack, after you glue it and it's dry, then cover it with one layer of paper packing tape to hold it together while you fit the patch. Afterwards the tape is easy to soak off.
This is not a real easy job, and I've given a very sketchy and simplified description of the process. _________________ new blog at my site! http://darntonviolins.com/blog
my work sites: http://darntonviolins.com and http://darntonhersh.com |
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