Mark , My 10M is a late machine 1976!! so it is metric but still uses imp screws. The vert screw is 11/16 dia x 8 tpi. The dials are marked 3.2 mm per rev which proves the 8 tpi. Hope this is of help.

Sorry but don’t have a problem I can add up and take away as I am over three score years and ten!!

Age – Snap!

Edited By DMB on 03/08/2021 17:33:26

The metric Myford S7 has an imperial leadscrew the handwheel is graduated in metric units, The gearbox if fitted is imperial with banjo and a set of gears to convert to metric pitch. The tailstock, cross slide and top slide have metric pitch feed screws and with metric dials.

If the shaper is fitted with imperial screws but the micrometers calibrated to reflect metric measure whilst not ideal it is workable as no doubt many metric Myford owners have found. It is what it is.

Robert Butler

Edited By Robert Butler on 03/08/2021 19:50:28

Hello Mark,

The machine serial number is stamped onto the nose of the ram that holds the tooling slide

My 10M is an imperial machine with 8 tpi right hand feedscrews. They are probably of ACME form. The vertical screw dims are

17.5 mm [11/16 inch] on the threaded section. The shaft is 15 inches long from the tray to the top of the screw. The bottom of the shaft is 22.3 mm diameter where it enters the bottom bearing housing. That is bolted up from under the swarf tray. The shaft diameter reduces to 17.5 mm diameter at 125 mm from the tray and remains plain for about 30 mm before the screw thread starts

I am intrigued as to how you have lost the feedscrew! To remove it from the machine requires some effort, not least grovelling on your knees to remove the bottom bearing bolts. Try looking again for it in some unlikely position.

Regards

Brian