Design help for Myford style saddle stop

I am thinking of a variation on the 254 stops which can be locked at any point along the bed rather than a bolted on fixture at the left hand end. The fixed type would be more suitable for a shorter lathe, the Atlas is 24" between centres. I made two for the museum's Smart and Brown model A to go either side of the saddle, but they fit on the inverted vee of the bed and are simpler to design.

Another variation. Sorry 'bout the awful contrast.. ..a couple of collars so that you can insert calipers / pins / blocks between collar and body adds usefulness

Edited By DiogenesII on 09/02/2023 19:31:44

Harold Hall Saddle Stop for the Lathe

Diogenes, I like your simplified version with the hacksaw slot instead of a separate moving piece. Very clever in its simplicity.

I agree!

Dan Gelbart on YouTube calls this a "flexure".

I wish I could claim my own ingenuity for that one, but I think it might have also have come from HH, or an article in MEW 'back in the day'..

Cutting the slot off-centre and using screws of different patterns are style innovations of my own however..

I'm afraid much of my own tooling is made 'for my eyes only'..

I have milled a block of aluminium in a similar fashion to Diogenes II one, but I hadn't thought of the "flexure" design and may have left the gap too wide relative to the bed width. I will find out tomorrow when I go back to the museum. The collar on the rod is also a useful thought.

Martin, Hemingway stop works fine on my pcf super 7

Just had a look on the site and they do say it's a new design so all well and good then

Martin