a thread about threads

[Carl H]

I am not sure if it is possible, but one thing I have found about this forum if you say it wont work, someone will come by and prove it can be done.
What I want to do is carve threads into a dowel and carve a nut that matches the pitch of the threads.
I do not have the rotary jig so I would need to cave the threaded dowel in two halves just like liquidguitars flute carve.
I would think carving the nut would go the same way. two halves then glue together.
I want to use fairly hard wood so I could make some practical projects.
I know in theory this will work I just don't have the experience to pull it off.

Help

[DocWheeler]

Carl,

As you probably realize, the threads at the sides can not be as deep as the threads at the top unless the dowel being carved is rotated.
A much better way would be to buy the tools to do it directly I think.

Here is a link that offers a better solution (and also creates threads in a bored hole to match).

[bjbethke]

I am not sure if it is possible, but one thing I have found about this forum if you say it wont work, someone will come by and prove it can be done.
What I want to do is carve threads into a dowel and carve a nut that matches the pitch of the threads.
I do not have the rotary jig so I would need to cave the threaded dowel in two halves just like liquidguitars flute carve.
I would think carving the nut would go the same way. two halves then glue together.
I want to use fairly hard wood so I could make some practical projects.
I know in theory this will work I just don't have the experience to pull it off.

Help

You could do that with the CW unit, but it is not the best way. I made some 1/2 nuts for my Legacy unit, I scanned the original part, it worked, but I like this Kit better. A lot less waste, time and wood.
http://www.bealltool.com/products/th...g/threader.php

[Carl H]

I am aware of the tapping and threading tools and I could use my lathe or router but I was trying to figure out a way here, Either with Shadow Relief patterns or conform vector. I will ask my brother for some help with the shadow. I just found out he has an awesome program for that.

[bergerud]

What diameter and how coarse of threads are we talking about?

[James RS]

And the gaunlet has been picked up

[Bigtyme]

Good one James....I look forward to the results. Sometimes even if it is easier to do it one way, it can be a lot of fun to try another....

[Carl H]

I was thinking of 3/4 of an inch. perhaps 6 threads per inch. I am not sure how much strength that would have. I just think of a few decorative projects I could do with threaded wooden dowels. Apple presses nut crackers etc.

[Dan-Woodman]

At the large machine shop I used to work at, they had milling cutters for there CNC machines that would cut internal theads. The cutter looked something like a tapered finger joint bit, but the teeth was only as big as the threads. The CNC head would drill a hole , change to the thread cutting bit and go straight down the middle of the hole and spiral around the hole and move down only one thread as it was spiraling around . Now wouldn't that be neat if the CW could do that. Then it could make external threads on the rotary jig with a 60 deg. bit.

[mwhatch]

What about doing it in 4 cuts instead of 2. I'm not sure about 3/4 inch. You would need a pretty fine cutter.