This is mine mate
Looks slightly worn as well but won't fully know until it goes back together
Sorry poor description, its the engagement block fitted to the saddle. The dowel rubs on the casting. I dont know if it had a chamfer or not
View attachment 97118
After you mentioned this and having another look at mine I thought I would put a bit of weld in to fill the worn away section before I paint everything and hopefully although not a major issue it will stop the chances of ever accidentally engaging the the spindle
Couple of before and after pictures, I didn't go mad with the weld hence it not be a completely perfect finish but plenty good enough
the indent on the right looks like it was machined, if it had worn there wouldnt be 90* edges. Be interesting to see how it performs
I was looking at that. I wonder if someone machined it deliberately to allow a jog function for changing gear etc.
No mine is the same