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Great video's on YouTube Chris. Keep them coming and thanks for sharing your tutorials.

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"After forty-nine years of violin building, I have decided that the search for a varnish is similar to the fox hunt. The fun is in the hunt."
Jack Batts Maker and Repairer of Fine Violins

Chris:

Nice jigs. I like the segment truer upper. It will work for bowl making as well.

Thanks

Chris

I am always amazed at the inguinity people come up with. Cool idea, easy to make and use. WIll be adding it to my to do list this winter. Tanks

Make sure to use casters or rollers that have bearings. As the cheap ones that are just plastic on a shaft will eventually wear out from heat friction.

Thanks for video. This is a great idea. I will be making one before I start my guitar.
Chuck

Nice, Chris. Having a motorized sanding operation sure would go a long way in saving my back and shoulder from "driving the bus".

Couple of questions...

1) How long does it take you to sand the rims and kerfed linings.

2) Have you designed a method of holding the rim in the mold while sanding?

3) How safe is this design for the router motor itself? It seems to me that router motors are designed for intermittent operation for a few minutes rather than a lot of minutes at a time. Have you seen any evidence of over-heating?

Thanks for posting!

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JJ
Napa, CA
http://www.DonohueGuitars.com

I posted this elsewhere in the forum but thought I'd post here too just to illustrate another concept. Motor is only a 1/6 HP oldie I picked up for $20. Does the job just fine.

This picture shows me sanding a 25' dome into a bandura rim. Used it for my guitar and it worked great. Went from fully flat rims to profiled (with linings, heal and tail blocks already attached) in about 5min.

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http://www.birkonium.com CNC Products for Luthiers
http://banduramaker.blogspot.com