That is what I said before, something is off with that spindle. My R8's sit just under the end of the spindle, without the drawbar installed.
My bad on miscounting posts. I thought you had posted you had removed the set screw which was sheared. Is this the replacement set screw? Does your collet slot engage this pin? Sorry for the primitive questions.Post 104 does not have a pic? If you mean post 109 by me then yes, that is the pin. It engages the collet on the straight part (Zone C). Given that his pin is in a similar location I am thinking that this is an R8 with damage preventing the collet from seating.
I like the idea of a rough measurement of the taper with a protractor. Quick and dirty method: you could also take an impression of the lower taper with plasticine clay and check that against a collet. The angle should be 8.5 on each side or 17 deg total.
Robert
True! I hadn't even thought of that. Could that be how it got sheared?My pin is pretty low as well, that one is shockingly high! I'm unsurprised that it is sheered off, it looks like you could engage the drawbar before hitting the pin!