[deadlykitten]

hello, is there a way to clamp fast from inside ?

for example, i have a part with a hole o25x50

can i put something inside the chuck, and clamp that something from outside ... this something should be ~o24

also, on this something i put the part, and after that this something should inflate? and clamp the part from inside ...

so i can turn all parts without unclamping the chuck, only inflating this little something ..

i don't know, something like a ballon or a sausage and fill it with cheese )

[deadlykitten]

this one ?

Expanding Arbor Set

[deputydawg]

I've had good luck with similar arbors. I've never bought a set, just get bigger than you need, and turn it just under your part diameter. I usually move the foot pedal so the arbor doesn't get unchucked if a little runout will be a problem.

[deadlykitten]

i saw that u can turn them to fit whatever you wanna fit ... it seems ok

i was so happy at first, when i saw that there really exists something like that, but i don't like their clamping domain : i read that it is ~0.1, and i was dreaming about 5mm

also, they seem to be a bit far from my place, so i will consider them only when necessary

[deputydawg]

MSC has some listed under Expanding Lathe Arbors - MSCDirect.com, but I don't know if they ship to the north pole.