johan teughels
Member
looking for a carbite pilot form my pumpkin (6ppc)
pumpkin spare parts
- Thread starter johan teughels
- Start date
johan teughels
Member
no luck at bruno's
C.L. Peterson
Active member
Check with Sinclair/Brownells
Carbide--$50.00
Steel--$10.00
Make sure you buy the cutting mandrel not the expander mandrel
CLP
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Butch Lambert
Active member
I think that you misunderstood. His tool had the eccentric built into the tool.
Fergus Bailey
New member
I dont know if my info is still current, but at one point Kelblys was the only place you could buy the pumpkin or parts.
Butch, isn't the mandrel the eccentric part?
That's how I've understood it to be...... and looking at the tool (pix only, I don't have one) it nearly has to be an offset mandrel
Thank you, that clarifies it nicely now I can see how the eccentricity is built into the tool body
al.....al ...............
al had something wrong ??
no way
just proves we can all make mistakes.
al had something wrong ??
no way
just proves we can all make mistakes.
FBecigneul
Member
the picture
shows a mark on one part, and a series of marks
on the other part.
it SHOWS nothing MOVING closer..
it is just a stationary picture.
( but i have one, and t works well)
shows a mark on one part, and a series of marks
on the other part.
it SHOWS nothing MOVING closer..
it is just a stationary picture.
( but i have one, and t works well)
The
eccentric mandrel gets closer or further away from the cutter when you rotate the body. Supposed to be .0001" per mark. Roughing it in requires moving the cutter in or out.
eccentric mandrel gets closer or further away from the cutter when you rotate the body. Supposed to be .0001" per mark. Roughing it in requires moving the cutter in or out.
Adding Facts to the discussion
I took my pumpkin apart and put the mandrel in my lathe. Chucked up on the large end and indicated the large end for .000" TIR. Then I moved over to the small end and the indicator shows .002" TIR. The big end and the small end have two different center lines.
Like GLP says the large part of the body, part with the cutter, rotates around the center line of the pilots large diameter. Because the small diameter has a different center line the cutter will come closer or further to the pilot as it rotates.
I took my pumpkin apart and put the mandrel in my lathe. Chucked up on the large end and indicated the large end for .000" TIR. Then I moved over to the small end and the indicator shows .002" TIR. The big end and the small end have two different center lines.
Like GLP says the large part of the body, part with the cutter, rotates around the center line of the pilots large diameter. Because the small diameter has a different center line the cutter will come closer or further to the pilot as it rotates.
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Now THAT makes total sense...... that's how I would have done it
(And how I thought it was accomplished)
Let's see...... two thou divided by 36 and some eyeball, makes it an easy-to-find to-near-the-tenth system...... mark yer spot wit' a Sharpie....... ....... yeahhhh, that's a perty fine adjustment at a couple thou/turn on that big drum.
More I see of these, more I want one
Now THAT makes total sense...... that's how I would have done it
(And how I thought it was accomplished)
Let's see...... two thou divided by 36 and some eyeball, makes it an easy-to-find to-near-the-tenth system...... mark yer spot wit' a Sharpie....... ....... yeahhhh, that's a perty fine adjustment at a couple thou/turn on that big drum.
More I see of these, more I want one
You would get the .002" movement in 1/2 turn. More than 1/2 turn you start going the other way, but the tenth lines are about 1/8" apart so it's easy to get an accurate adjustment. By far the best neck turner on the market.