Gallery, Projects and General > How do I??

Low Profile Transfer Plate

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klank:
Thank you all for the kind comments.

You could use three or even four mounting pegs.

Screw the chuck to the plate.
Put the T pegs in the slots, with their cross drilled holes aligning along the slots and slide them along the slots until the peg heads enter the holes on the back of the plate (a bit fiddly). Sit the plate/chuck down on them. Use a pointy thing (scriber or some such) to poke into the side (M6) holes in the plate to locate on the cross holes in the pegs - thats why a good sliding fit of the peg-into hole is necessary. Screw in the coned grubscrews.

I left the base bit of my pegs circular (lazy) with a loose fit in the base of the T slot, so they can swivel a bit - but they slide along the slots easily. If you wanted you could machine the bases a bit bigger and leave flats on two sides so that the cross drilled holes are always aligned along the slots and you won't need the pointy thing to align the cross holes. I always find that "square" headed T pegs tend to bind a bit in the slots when you try to re-position them.

The more pegs you use the more fiddly it gets. Two is fairly quick.
Equally, as you say Stew, with two (in line), you could mount them in the plate first and slide the whole thing across the table on a T slot, then do the  pointy aligning thing and add grubscrews.

sbwhart:
Hi Klank

Thanks for the explination

Stew

klank:
Sorry Stew, to mislead you - you cannot slide the plate across the table - as the spigot will prevent this.
I should have realised this myself - the spigot stays in the back of the plate (concentricity) - you have to set the pins first and drop the plate/chuck down onto the table centre.

My brain hurts.

sbwhart:
Hi Klank

Thanks for that.

I've been restling with the problem how to mount my lathe chuck onto my RT for some time, my RT is  a 100mm Vertex with three slots and a M2 hole in the middle, and my chuck is the Chinese mounting vertion:- three bolts in the back, I think I've got it sorted out in my mind how to do it and I ordered the bits from Arc Euro yesterday, but I found your link kicked my mind off in another direction.  :mmr:

 I'm going to stick with my origonal idea as its more apropriate to my kit, I'll post it in two or three days when I've got it underway.

bogstandard:
Been having a think about yours since last time you visited Stew, and if you can get a plain plate that is at least twice the thickness of a standard hex head on a bolt, then your solution is rather easy. You even cut the backplate on the RT for accuracy.

I will run it by you next time we talk, before showing on here.

John

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