Variable Speed Drive Project

Discussion of all machine work. Lathing, Drilling, etc.

Variable Speed Drive Project

platypus20
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platypus20
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Joined: 29 Mar 2008, 20:04

30 Apr 2009, 04:17 #1

I got a call from a friend to come out and help with the race car, while there I was given a surprise, my friend had picked up a old Powermatic drill press, and was in the process of stripping it out before the scrap guy arrives in the morning. There setting in a bucket were the start of the variable speed drive (VPD) assembly, that I want to build for the Franken-Mill. What I got were the 2 drive pulleys, a working spring loaded motor pulley and a complete adjustable spindle pulley. They work like a snowmoblie clutch, or Reeves Drive, as you adjust the spindle pulley, the spring loaded pulley is moved by the drive belt, as one pulley closes down, the other opens up. Now that I have the 2 main parts of the VPD, I can start to lay out, the drive, working on the basic part locations, belt length, the adjustable pulley's adjustment linkage and adapting it to the mill/drill head assembly.

jack
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platypus20
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platypus20
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Joined: 29 Mar 2008, 20:04

30 Apr 2009, 04:18 #2

another view
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platypus20
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platypus20
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30 Apr 2009, 04:18 #3

the other pulley
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platypus20
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platypus20
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30 Apr 2009, 04:19 #4

another view
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platypus20
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platypus20
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30 Apr 2009, 04:19 #5

both pulleys

Jack
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Franz©
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Franz©
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Joined: 23 Jul 2005, 17:54

30 Apr 2009, 04:24 #6

A) your friend is nuts.

B) you arrived just in time

C) remember, that spring loaded sumbeach hurts like hell if you disassemble it without doing the disassembly in a fixture or press.

D) don't forget to put a block of wood in the damn pully when you pry the cheeks apart to install it and tighten the setscrews.

E) remember, there are generally 2 setscrews 90° apart on the damn thing

F) the belts are in stock at Allied in Syracuse

Don't even ask how I know all of the above, especially the ouch parts.

There is a very nice #2 Rockford (I think) 90 miles West of you. I can even include a few cutters.
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platypus20
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platypus20
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Joined: 29 Mar 2008, 20:04

30 Apr 2009, 04:34 #7

Franz© @ Apr 29 2009, 11:24 PM wrote: A) your friend is nuts.

B) you arrived just in time


A - No the spindle and the table were broken, he got it out of a vocational school, he only got it for the VPD parts for me.

B - No I had to wait the sausage sandwiches, they were not off the grill yet!!
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Franz©
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Franz©
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Joined: 23 Jul 2005, 17:54

30 Apr 2009, 04:42 #8

A) the "machinists" on a number of boards would stand in line for the rest of the parts.

B) coulda been worse, the sausage might have been overcooked or cremated.
B2) Never got to Marko's for sausage
B3) Never trust Jack's sausage & shot at a funeral, the sausage have sawdust filler and the boose is watered.
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