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it is the Precision Mathews PM-835s manual. It's pretty much identical except for the bottom of the base casting. Mine is also a Sharpe.

That I don't know. Probably me whacking on it to remove a tool with the threads partially engaged. The original drawbar with the rough thread was replaced about a year ago which lines up with the progressive symptoms. I noticed the excessive runout a couple of days ago, and just now when I...

Well that's a good question. The spacer looks like it is bronze, about 2mm wall thickness with a crack along one side. When I said symptoms came on gradually, that would make sense as the crush became greater the drawbar exerted less force and things started to wobble. I use a 12" Kurt vice...

Yep, that was the problem.

I think I found the problem. The drawbar spacer is crushed and the drawbar was not pulling the tool up enough. Sometimes it's just the simple things!!!!! 5 points to thestelster !! thestelster said: Did you take your draw bar out completely at any time? I know on my Ex-Cell-O there is a...

The R8 tooling is properly seated in the spindle with the drawbar tightened and there is no spacer needed under the drawbar nut. There is no play between the tooling and the spindle.

Gradually. I'll do some more investigating this morning. :)

Video is 13 secs - 13Mb. Send me a DM with your eMail Susquatch But to answer the other questions as clearly as I can - the R8 spindle #127 translates inside the spindle sleeve #132. Part #133, the nosepiece at the bottom of the quill, and part #132 appear to be rigid and show no relative...

There is no lateral movement between sleeve and quill barrel, #142. The free end of the spindle is able to translate about +/- 0.5mm and moves without effort, as if the bore is enlarged/shaft is reduced. Also the sound of the spindle hitting the inside of the bore when I push it is similar to...

There isnt any sign of interference at the top end. The slop at the spindle sleeve is between #132 spindle sleeve and #127 Spindle. And as I listen more carefully, it could be the slop that is causing the noise. So... WHY is there slop between the sleeve and the spindle? These parts are...