The Shop > Tools
Myford VM-B CNC Conversion.
Ned Ludd:
Hi John,
My hero. :bow: :D
Ned
John Stevenson:
--- Quote from: Rob.Wilson on October 23, 2011, 09:34:12 AM ---Is that it ,,,,,,,,,,,,,its been 2 weeks :coffee:
Rob :wave:
--- End quote ---
Done a show in between and had to take the piss out of a few Geordies, as you know that takes a lot of effort getting the thick bastards to understand they have been had :scratch:
Rob.Wilson:
--- Quote from: John Stevenson on October 23, 2011, 11:39:21 AM ---
--- Quote from: Rob.Wilson on October 23, 2011, 09:34:12 AM ---Is that it ,,,,,,,,,,,,,its been 2 weeks :coffee:
Rob :wave:
--- End quote ---
Done a show in between and had to take the piss out of a few Geordies, as you know that takes a lot of effort getting the thick bastards to understand they have been had :scratch:
--- End quote ---
:lol: :lol: :lol: :lol: :lol: :lol: true very true :doh: :lol: :lol: :lol: :lol:
I do like the way you machined the spindle :med:
Rob
DICKEYBIRD:
--- Quote from: John Stevenson on October 23, 2011, 08:53:34 AM ---...do a quick assemble, check for run out...
--- End quote ---
I'm keen to hear how much runout you end up with John. I turned down the 1 1/4" straight shank on a CTC ER32 collet chuck to 30 mm using the same method as you (other than screwing a bolt into the plain end and center-drilling it) and ended up with .0015" runout. I guess I should have turned a 8 deg. tapered stub to fit the chuck instead of relying on a collet to be close to perfect.
I've now skimmed the taper in-situ and still have .0004" or so. :doh:
John Stevenson:
Managed to get all the bits back and assembled the motor tonight.
Just sat on the bench with a collet and drill blank in the collet and turning by hand i get about 1/4 of a thou run out right on the end.
End housing is just a solid lump of alloy bored for the register and bearing so seeing as it was so thick I belted two 26mm holes in for headlights.
Two 5v CREE LED lights from China, dead bright these are you can weld with them.
Switched off all the lights in the shop and switched these on pointing across the shop.
That's just these two lights. Took another picture with the motor jacked up as though it is working but all you could see was two overlapping orbs so i had to shine the lathe work light over towards the bench to get some background lighting.
Now got to sort an inverter out and test run the motor, bought a big box of 10 surplus inverters a while ago and can't find the damn box.............................
John S.
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