The red dot is only there to give a visual indication that the stop/indexing plunger is in the correct section between 2 stop pins giving 180 degrees of spindle rotation One can get around not having one by engaging the plunger and rotating the spindle and seeing wether you get 180degrees if you don’t just rotate the spindle with the pin pulled back slightly and “feel” the stop pins on the spindle.
The dot is merely a dab of paint so it could be added with a bit of dismantling. Stupid question but is the little window present? Also the dot might be obscured with grease/dirt.

Im lucky enough to have 2 Alexander versions and they are fantastic machines with a bit of thought. Stefan gottaswinter on YouTube is quite a guru on them.

I hope that makes sense

William

Jim, if it's new from Warco take it up with them.

Robert Butler

the index dot indicates that the indexing ring is 90 degrees into the 180 degree travel.

That gives you the correct position when you line the flat of the d bit up with the pull out blade to rotate the back edge for grinding the relief.

There is probably an index notch that corresponds which you can use to lock it whilst making the marker.

Have you dismantled the spindle? It possible the index ring has a place for the dot on it, but the hole in the housing to view it hasn't been drilled.

Dave

Jim,

IIRC (it’s been a while) the spindle comes to pieces quite easily. I would take the back off and have a look at the index ring. It’s a fairly chunky piece and there is a good chance the dot mark place is on it.
It doesn’t actually matter where your mark is, as long as the index ring is halfway through the travel.
I returned the Chinese one I had as it arrived damaged, then I lucked into an actual S0 with loads of collets for not much more.

The Deckel head is the same, but IIRC there were detail differences.

Dave