Gallery, Projects and General > Project Logs
Oh Blimey I bought a CNC Lathe !!!!
vtsteam:
I know your widgets are to be copper,Andrew, but have not yet gleaned their function, unless I missed it somewhere back. If secret at this juncture, carry on, But otherwise, what the heck are they? :)
awemawson:
No secret Steve.
Did you see my thread regarding the Stud Welder? It uses copper collets to hold the studs, and because of the huge discharge current between the collet holder and stud, they are expendable lasting maybe 100 studs before they are consumed.
I have a few in a limited number of bores, but decided to do 'a run' of 3, 4, 5, 6 & 8 mm collets as a 'production exercise'. I'm trying to make it so they are made effectively in 'one operation' involving boring and slitting the gripping end and boring and threading the adjusting end. This is just an excuse (and learning exercise) to play swapping parts from the main spindle to the opposing spindle so that the part can be worked on on both ends.
The collets are available commercially and frankly aren't very expensive, but that's not the point :lol:
dsquire:
--- Quote from: awemawson on February 20, 2015, 11:26:50 AM ---No secret Steve.
Did you see my thread regarding the Stud Welder? It uses copper collets to hold the studs, and because of the huge discharge current between the collet holder and stud, they are expendable lasting maybe 100 studs before they are consumed.
I have a few in a limited number of bores, but decided to do 'a run' of 3, 4, 5, 6 & 8 mm collets as a 'production exercise'. I'm trying to make it so they are made effectively in 'one operation' involving boring and slitting the gripping end and boring and threading the adjusting end. This is just an excuse (and learning exercise) to play swapping parts from the main spindle to the opposing spindle so that the part can be worked on on both ends.
The collets are available commercially and frankly aren't very expensive, but that's not the point :lol:
--- End quote ---
Andrew
Isn't that the point, if you can't make it for twice the price it wouldn't be any fun. :lol: :lol: :lol:
Cheers :beer:
Don
vtsteam:
Makes total sense to me, Andrew. :thumbup: :thumbup: :thumbup:
awemawson:
Playing with the soft jaws I got fed up not 'quite' locating them in the right serration. They have 60 degree serrations at 1.5 mm pitch, and you'd think it dead easy to slap the three of them on and bolt them up so they all sat in the same radial position prior to boring for accuracy. Several times I'd put a set on, torque the bolts, spin the chuck and there'd be one very obviously one serration out. :bang:
Fed up with this I made a little gizzmo. Fit one jaw, set the gizzmo to it, fit the rest using the gizzmo - works a charm :ddb:
Took all of an hour to make
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