>
> Is tapping obsolete?
>
> http://www.emuge.com/carbide_thread/
>
Nope, tapping is still useful, these tools need space (try making a 2 mm
thread this way - the tool is larger).
But this is really useful, there are different tools. Threading mills like
the one shown in the picture give a fixed pitch where you can vary the
diameter: just mill a helix with the proper radius and you're done.
There are also single thread mills. It takes some more time to make a thread
this way since you have to repeat helixes until you have enough length on
the thread but with a single mill you can also vary the pitch. I'm going to
experiment with this type of thread miling since I need to create a 6 fold
36mm thread with a pitch of 1mm.
This is easy to do using a simple procedure: go to the starting height, make
a thread with a 6mm pitch, go back to the starting point but 1mm higher and
make a helix. repeat this 6 times and there is my M36x1 6-fold thread.
But it's not the ultimate machiner's dream. See:
http://findarticles.com/p/articles/mi_m3101/is_1_78/ai_n13809324
- Rob
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