That's not bad, you should see it when I turn the suds system on
is this your lathe?I would also do similar to the way the Triumph one I have works.
The Image above that you posted is very similar in function to the one that was on my Colchester Student (Round Head) and as I said I felt it too wide. The mechanism for stopping it was also similar in that it came down on hard stops. That in itself worked well but for ease of manufacture the Triumph way is easier. A rod for the hinge, a tube attached to the guard which slides over the rod and a slot in the tube that a setscrew protrudes through and allows only enough movement to set it up or down. Very simple to make and if you find the slot is slightly too long you can rotate the rod slightly to offset.
View attachment 195977
Sadly it is.is this your lathe?
Sadly it is.
I will have a look and see if I have any pics.
The bar is probably 25mm and it goes into a hole in the headstock and is secured with a setscrew going down from the top, it means it can be adjusted by slackening the screw and sliding the bar to the desired position.
Obviously you won't want to bore a hole into the headstock but a racket with a hole for the bar to slide through and a screw to lock it would do the exact same job, in fact the pic you posted of the Boxford has exactly that method.
Here is a closer pic.
View attachment 196034
Yes that diameter would be plenty for a lathe of a Boxford size.There is a wee cover plate on the lower part of my head stock, I will remove it tomorrow and investigate it may be that I can use the holes to bolt some kind of bracket to. I was thinking 16mm bar and 20mm tube
It is, or was It has been repaired and a metal tube and plate put on instead of the fully fibreglass guard as the original would have been. It was like that when I bought it so not guiltythanks that looks like firbe glass that guard
That is the handle to engage the back gear. It halfs the speed