CNC Shark Forum

That worked in Carveco

John

Good news!
Here's the next one: Bob

The last part: I told you it was simple...
For the rest of the directions and modifications you'll need to refer to the other 18 pages of this thread.
Keep me posted.
Bob

Thanks Bob

John

You're welcome. Have some fun with this.
Bob

I realize this is an old thread; hopefully someone is still listening!

First, great idea Bob, and the others who have contributed.
The pinion gear(s) have a plain disk attached. What is it's purpose?
Maybe a related question, how do people attach the work?

Thanks,
Steve

Steve,
If you give a careful read through the different contributions to this thread, your questions will all be answered.
Bob

Having read through the entire thread (3rd time, I think), I found a partial answer:

Question: what is the purpose of the plain disks attached to the pinions?
On page 8, Ruhnau refers to a wheel on the dead center supporting the work piece. So in this case, the plain disk is riding on the spoil board, there is no pinion gear on that end. This makes sense.
Question: how is the work attached?
On page 15, Bob says "the wood is attached to the gear with screws". I'd seen this, but forgotten.

I still have the same first question.
1. What is the purpose of the plain disks attached to the pinions? The pinions get direct support from the racks, so it doesn't seem to be useful for support.

Steve,
It was an attempt to shield the gears from sawdust. It would also serve as a guide to keep the work centered. Probably not even necessary. Try it without disks. It might work just as well using compressed air. Since this was a prototype, there were several parts designed into the project that were not used. And, other members added some nice components.

Bob

Aha! Thanks for that, a shield right where most of the chips show up.
I am concerned about keeping chips out of the rack, haven't figured out anything new. My dust collector does a good job on the flat, it will certainly leak on rotary work. We shall see.

Steve