a thread about threads

[Carl H]

I would settle for 1 inch even and if the nut it split and assembled then the 1/16 cutter should work.
Just something to challenge people

[RMarkey]

I did this bolt when we were testing the STL feature.

[Carl H]

very cool!

[eelamb]

I see this being done as a 4 sided carve using a sled, and rotating the threaded rod after each carve, leaving a head on one end and a square on the other end to hold it in place.

Note: bergerud has something similar making the ball in a square frame.

The pattern would have to be a 3d, sliced into 4 patterns.

[henry1]

eelamb would you be able to do this and what software would you use

[eelamb]

Ok here is a bolt. If someone wants the stl file I can send it to them via email. It is 14meg in size.
The nut creation in 3d is not hard to do either.

Edit: after posting the above I went ahead and made the nut. Again I have the stl file it is 3.6meg

[CNC Carver]

Great work. Like to see this in some projects.

[eelamb]

Anyone interesting in carving this, just PM me with your email address. Tell me the size you want, I will make the bolt to exact size and TPH, along with the nut. remember the TPH needs to quite large to cut well. I would suggest bolt being a 1.0 or larger carve.

[bergerud]

I think this is like the lock miter. Special "Carvewright" threads need be invented with 1/32 radii in the troughs and on the peaks. I am thinking of threads more like slightly rounded acme threads. Would they be easy to create Eddie? (I have tried a four sided carving jig like you pictured for carving a linked chain.)

[eelamb]

Dan, this one is more like what it should be. It is a bolt 2 5/8" long, 1" dia, with 13TPI. I also included the cutting tip used to make the threads. None of this is my doings. It is a JS script for moi3d.