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| Help with Archtop tail piece http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=29714 |
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| Author: | peterm [ Sat Oct 30, 2010 5:09 pm ] |
| Post subject: | Help with Archtop tail piece |
Would any of you care to how you make your tail pieces? I think I'll attempt an archtop soon... |
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| Author: | Dave Stewart [ Sat Oct 30, 2010 8:19 pm ] |
| Post subject: | Re: Help with Archtop tail piece |
I basically jigged it following a lot of the ideas in Benedetto's book. After pattern routing to shape, I 1)tap gut hole centers and then 2)drill , then 3) route underside slots for the tightening nuts. Finally, 4) I plungeroute holes for string buttons and, using the same adjustable jig, route narrower string slots. The rest is shaping. |
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| Author: | SteveG [ Sat Oct 30, 2010 11:53 pm ] |
| Post subject: | Re: Help with Archtop tail piece |
Thought this was important and might be missed: Keith Lally wrote: It's tapered from 1/4" at the string end to 3/8" at the heel. There is an additional half cylinder piece about a half inch from the heel end on the underside that is the fulcrum that actually contacts the top. This Quote was from the OLF here: viewtopic.php?f=10101&t=29289&p=389790&hilit=benedetto+tailpiece#p389790 cheers |
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| Author: | Darrel Friesen [ Sun Oct 31, 2010 1:13 pm ] |
| Post subject: | Re: Help with Archtop tail piece |
My method is nowhere near as elegant as Dave's but works fine for me as I only build one or two a year and have not felt the need to jig up yet. I start by milling a blank to 3/8" thick and squared up slightly oversized. I then mark a centerline and register everything off of that. I rout the slots for the Benedetto adjuster using a 1/4" box core bit on the router table with stop blocks set up. A chisel is used to square one end of the slots to accept the knurled adjuster knob of the tailpiece cable. I then rout a 1/16" deep x 1/4" wide recess to accept the fulcrum piece. The blank then goes into the drillpress vise and I peck drill the holes for the cable ends using a 1/8" good quality brad point. I then drill the large and small holes for the string ends and connect them using a fret saw and files to true up the edges. Next I use a cardboard template and mark out the shape on the blank with a pencil. Bandsaw out just proud of the line. Then it's off to the belt/disc and random orbital sander to complete the bulk of the shaping. I use a 12" radius block to finish the top curvature with progressively finer grits as well as hand sanding for all the other areas. Glue in the fulcrum and shape/sand. A quick trip to the buffing wheel and it's ready to go. |
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| Author: | peterm [ Sun Oct 31, 2010 3:12 pm ] |
| Post subject: | Re: Help with Archtop tail piece |
thanks guys! I would love to see some pictures though... |
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| Author: | jason c [ Sun Oct 31, 2010 3:55 pm ] |
| Post subject: | Re: Help with Archtop tail piece |
I do mine almost exactly like Dave. The only real difference is that I clamp my tailpiece to a block and use a forstner bit to hollow the end (just like a Hill-style violin tailpiece) then drill my holes for the adjuster. Also, I hollow out the underside where the ball end of the strings go. Jason |
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