davewhite
Luthier / Guitar Maker
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Aemulor et ambitiosior
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Post by davewhite on Jul 22, 2016 9:01:45 GMT
The 3mm wide saddle slot is routed in the Hormigo bridge blank with this jig: Another 3mm slot is routed at the front edge of the tie block. A piece of Anjan is then glued into this slot. This hard wood cap will stop the strings digging in to the tail block: A piece of Anjan is thicknessed, marked for the 12 string holes and drilled with a 2mm brad point bit. This will be the template for drilling the tie block string holes and act as the back edge cap: The Anjan template is glued onto the bridge tie block and the string holes drilled through with the 2mm brad point bit: A 3mm wide slot is then routed out just in front of the Anjan insert: The two wings are then rough cut and the bridge is shaped and ramped: The bridge is carefully positioned on the top and masking tape used to form a “nest”. Two 2mm holes are drilled in the saddle slot through the top so that parts of cocktail sticks can be super glued in to hold the bridge in the correct position whilst gluing:
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francis
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My main instrument is: Whatever I'm building...
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Post by francis on Jul 22, 2016 12:22:49 GMT
Really liking this thread
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R the F
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My main instrument is: bandsaw
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Post by R the F on Jul 22, 2016 21:39:05 GMT
I'm afraid you lost me with the sequence of events leading to the completed bridge but I'm impressed by the end result. Twelve holes for 4 strings... that's three for each; they have a merry old time, don't they? Are there any rules of thumb for the size you make the bridge because it's obviously huge in proportion to the size of the soundboard?
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ocarolan
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Post by ocarolan on Jul 22, 2016 22:02:21 GMT
Buachaill Beag is presumably Davespeak for big bridge....
K
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davewhite
Luthier / Guitar Maker
Luthier
Aemulor et ambitiosior
Posts: 3,548
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Post by davewhite on Jul 24, 2016 9:10:24 GMT
Buachaill Beag is presumably Davespeak for big bridge.... K Does my bridge look big on this? Normally on ukes I have the strings secured to the underside of the bridge via a bead and a knot and this is fine if I know who I'm making the uke for and they are happy with that arrangement but with the uncertainty of ownership I opted for something less elegant that makes string changes easier. Also I had just had fun making an 18 hole bridge for my flamenco guitar "El Xiprer" so made a 12 hole version. You know what they say - "A big bridge means a big . . . " Next the pores in the Hormigo are filled using egg white. Small pieces of 240 grit sandpaper are dipped in egg white and rubbed on the body creating a slurry of Hormigo and egg white that is pushed into the pores - the albumin in the egg white acts as a binder. When dry the body is sanded with 240 grit paper: The back and sides will have a pre-catalysed lacquer finish and this is sprayed on. The top will be finished later with Liberon finishing oil: The neck is sprayed too: The bridge is then glued on using hot hide glue: Here’s the final result after the top has been finished with Liberon finishing oil and the tuners, nut, saddle and strings have been fitted and the playing action set up:
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francis
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My main instrument is: Whatever I'm building...
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Post by francis on Jul 24, 2016 15:00:28 GMT
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Post by lavaman on Jul 24, 2016 15:58:17 GMT
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Post by johnhale on Jul 24, 2016 19:09:38 GMT
Lovely job Dave
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R the F
Luthier / Guitar Maker
Posts: 1,135
My main instrument is: bandsaw
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Post by R the F on Jul 24, 2016 20:32:45 GMT
I don't know much about them but this one looks delightful.
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leoroberts
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My main instrument is: probably needing new strings
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Post by leoroberts on Jul 24, 2016 20:37:15 GMT
Yup. That's a proper good looker is that... *checks sofa and wallet for spare fivers"
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