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2012-03-17

Making Bridge (cont.)

Well I had to drill the holes for the bridge.
I don't have a drill press so I device a set up for drilling it.
Firstly, I glued up a slider which is just a wooden block with side fence edge to glide on a long straight wooden block
The bridge will be held by hand on this slide and slide to the dremel fitted with a 1.5mm drill bit.
Next I clamp 2 pieces of wood to hold the dremel.
The height can be adjust by closing the 2 pieces of wood or making them further apart.
The dremel are all clamped down and I slide in the bridge with markings on where to drill.
All went well for the 1st 6 holes
When I drill the other 12 holes for a 18 hold bridge.
I drill the 1st hole too low.
For the center 4 holes, I adjusted it higher but 6th string I drill it the same as the first to make it look normal.

Marking the 6 holes

The set up for drilling

Another view. The bridge is held by hand on the slider block

End view

Top view

Drilling in action

6 holes drilled OK.

12 more holes mistake on the 1st set

A MOP will be glued for the tie block.

Following that I began to saw the MOP to slightly oversize and I intend to sand / file the MOP to fit the tieblock.
I was thinking to either file it after gluing onto the tie block or file first then glue?
Which would be better?

Saw to size using a junior hacksaw

The MOP slightly oversize than the tie block.

After sanding / filing to size I began the gluing process.
I put a curve block of wood underneath and put a straight edge at between the tie block and the saddle block (My useful Al bar)
Then I apply the CA glue (super glue) and glue the MOP; 1st I held it down by hand then after it began to set, I clamp a block of wood to it.
After the glue set, I level the edges with the tie block by sanding and then use the micro mesh to polish the surface (12000 grit); it shine like a real pearl!
With this I am done with the bridge.
Next will be gluing the fingerboard and bridge onto the guitar itself.
I forgot to weigh how much is the bridge I'll remember to do that next time.

The gluing set-up

Apply the CA glue (superglue)

Glue the MOP and clamp a block to hold it.

After unclamping before leveling the edges

Polished MOP, hard to see the real beauty of in this picture but it looks very 3D in reality.

I have the chance to measure it it's about 22.4 g well still within my range.
Final weight of the bridge 22.4g

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