Learn how to build your own Tenor Ukulele!  
School for Ukulele making

Tool Tips:

-Getting started

-PVC Clamp

-Gobar

-PVC Gobar

-Gobar Deck

-Sandpaper Cutter

-Sanding Block

-Fret File

-Bending Jig

Contact info:

phone/fax:
(808) 847-1541
718 Puuhale Rd.
Honolulu, HI
96819



Bending Jig
This simple jig is perfect for bending sides with a Heatblanket. The jig shown here is an example only! Measurements and shape will depend on the ukulele you're making. Remember, you can create a form in any shape or size desired. This is the basic idea.

Bending Jig  


Bending Jig Components
Materials:
1 sheet 25" x 21" x 3/4" birch ply (this jig will be getting wet so stay away from Particle board or MDF)

1 strip 5" x 24" sheet metal

5 each: 1" diameter dowels, 9" long

1 each: 3" diameter dowel, 9" long

6 each: 3/8" x 9" all thread rods

6 each: 3/8" wing-nuts

6 each: 3/8" nuts

6 each: 3/8" washers



Bending Jig  


Steps:
1. Transfer the ukulele shape to your ply and cut your pieces.

2. Mark the sides before drilling holes for your 1" dowels. Place the holes 2-3" away from the edge of the board. We want one at the upper bout of the form, one directly below the waist, and one at the lower bout of the form.

3. Mark both sides exactly the same! The dowels have to go through your form, so the holes must be aligned. Drill the holes when ready.

4. Assemble the box using glue, nails, screws or all of the above. The base of your form is oversized so you can easily clamp it to your worksurface.

5. Nail sheet metal down over the top of the form.

6. Drill 3/8" holes about 1" from the ends of your dowels. Put the dowels through the holes in your form. Use the all thread rod to hold down the other dowel.



Bending Jig  


Bending Jig:

Note the slotted dowel used for the waist. You'll need to slot all the hold-down dowels so they can slip easily into place.

After bending you can easily slip the dowels out of the way to retrive your piece.






Bending Jig  


Bending Jig:

Another view of our completed Bending jig....






Bending Jig  


Bending Jig Inside View:

This shows how the hold-down dowels run all the way through our form. Using dowels lets us rotate the hold-down bars slightly. This is a nice added feature allowing us to gradually work the side down onto the form.




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