SIDE CUPPING!!!! Oh, no!!!

OKAY. . .my first real mishap on this guitar . . . After I took the first side out of the bender, what I discovered was that about 3 inches of the lower bout end of the side had cupped. I think it was not able to contact the heating blanket fully, and the moisture made the wood cup. It was too big of a cupping to just press it back to shape.

After thinking about it a while, I decided to try using the heating blanket, with the side clamped in the body mold, to make it conform to the mold. I wrapped the wood with some dampened Kraft paper and foil, laid the heating blanket on the inner side, and clamped it against the mold, with another clamping caul for the portion sticking up above the mold. Then I turned on the heating blanket and cycled it on and off a couple of times.

It seems to have worked! When I removed the heating blanket, after it had cooled completely down, I saw that the cupping was gone. I'm leaving it in the mold till tomorrow, just to make sure it really sets.


While the second side was in the bender, I used the time to make some spreaders for the mold. I found I had an old one that would work for the upper bout. I ended up making one for the waist and one for the lower bout.

I also scrounged around to see if I had any of my old clamping cauls for gluing up the bridge and the fingerboard extension. (I wanted to make sure I didn't forget to make these before I closed up the soundbox! I did that once and had to make the cauls just going by the blueprint, hoping it would fit properly in the end!) I did find them, and cut them down a bit, to make it easier to get them in and out of the small soundhole of this guitar.




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  1. Planning
  2. A Little Change in Plans...
  3. Back Braces
  4. Carving the Back Braces & Cutting the Top Braces
  5. The Rosette / Tapering the Fingerboard
  6. Bracing the Top
  7. Carving the Braces / Gluing the Soundhole Braces & Bridge Plate
  8. The Finished Top and Back!!! / Cutting and Bending the Sides
  9. Fixing Cupped Sides / Making Spreaders & Clamping Cauls
  10. Neck and Tail Blocks
  11. Sanding the Radius into the Sides / Gluing the Kerfing Strips / Side Reinforcements
  12. Fitting & Gluing the Back
  13. Fitting & Gluing the Top
  14. We Have a Soundbox Now!!!
  15. Bending and Routing for Bindings
  16. Gluing the End Wedge & Bindings
  17. Scraping the Bindings
  18. Beginning the Neck
  19. The Neck, Continued!!!
  20. The Neck, Day 3
  21. Peghead, Tuners, Dots, & Frets!!
  22. Peghead Inlay
  23. Backstrap & Gluing the Fingerboard
  24. Carving the Neck / A "Duh!" Moment / Side Dots / Preparing for Finish
  25. Pore-Filling and Sealing
  26. Spraying the Top Coats
  27. Finishing the Finish / Gluing on the Neck
  28. Gluing on the Bridge
  29. Set-Up / It's All Done!




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