|Forum topic by vejesse||posted 10-10-2011 07:35 PM||1914 views||0 times favorited||5 replies|
10-10-2011 07:35 PM
Hi guys, I’m new to the forum. I work as a luthier in Wisconsin and I’m looking to produce a small wooden part that incorporates a small threaded wooden spindle..
I was searching the internet for what I’m looking for and ran into a related thread on Lumberjocks. Someone with the handle TedS. mentioned he had found a supplier of wooden dowels threaded 3/8 -16. I was going to give him a message directly but I guess I can’t do that yet so I figured I would post something here.
I realize 3/8 – 16 is pretty small for wooden threads but I’m looking for a supplier in the U.S. that can produce this size thread in dowels made of a tough wood such as boxwood. Ebony would be even better. The length of the final part would be 1 1/2”, but I could use a longer dowel and cut lengths. The O.D. of the dowel before threading would be 0.370” (0.005” less than a full 3/8”) for less binding up.
I guy I used to work for had some luck doing this with a metal lathe. He would attach a Dremel tool to the tool post, chuck a small 60 degree cutter in the Dremel and feed it with the lead screw of the lathe. The dowels were boxwood first turned on a wood lathe and about 6 inches long. I guess the results were ok but it’s slow going and I want some parts in larger number and I don’t have the patience to mess with this. No problem tapping boxwood as it seems very tough but outside threads are a different story.
The Josef Teller company in Germany makes a part similar to what I’m interested in. The threads are M10 – 1.5, cut in ebony and the machined threads are very clean. I believe they use diamond or CBN tooling. I actually emailed them about making a version in 3/8 – 16 but they declined.
So, any ideas out there? I talked to about a half dozen specialty shops and nobody had a clue.