Quick Change Tool Post Size For 12" Lathe

[TakeDeadAim]

I agree with Bob regarding the height of the toolholder in relation to the centerline of the lathe as measured off the top of the cross slide/compound where the holder mounts. I have a 13x36 lathe and use a BXA/200 size holder. One thing to consider is the use of a larger tool holder will allow you to use larger tool holders. The 200 size allows the use of 5/8" square tool holders. I find a wider variety of both tool holders and inserts available for the larger sizes and in fact have bought some 3/4" holders and milled the shanks to allow me to get the insert I wanted.

Shars tool does have drawings of the tool holders on their site and I do have some of their holders which seem to work quite well.

 

[Tozguy]

Why would it be too large?

The question was for Armourer, who knows the critical dimension on his lathe to be 1.25'' and the dimensions of the tool holder he is considering. Just wondering why he still thinks it might be too large.

 

[pdentrem]

Just out of interest I took this picture showing my AXA on my Jet BDB1340 clone.
Pierre