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Aciera F3, ER32 retrofit.

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NeoTech:
on the original tooling with the original drawtube and collet.. the runout is so small my i cant really see the needle move at all. I have put a 1/100 dial on it, and its less than 1.. So i know that the spindle runs fine.. and arent acting up.

The spindle taper is within 14.8degrees, its stated to 15.. so i guess its fine.. running the spindle without a collet or a drawtube, the runout is about 3/100 when put the dial on the inside of the spindle and its the wobble within the bearings.. All tigtened down with drawtube.. well look above. And with the original tooling in it you can feel some play in the upper bearing, where drawtube contacts the spindle tube.. its so small though that it can hardly be detected.

Thats why i thought, well i make a sliced up lower collet and put in. and let the new drawbar torquet into the spindle taper..
first of all it didnt compress - at all. it just sat there as it usually did i even put som weight on that thread to reaaaly get it in there.. but well that just restulted in some trouble getting the drawbar loose again.

im figuring that the ER32 collet isnt really concentric. i have put the holder in the lathe chuck and spun it, with a dial on the main body and a dial on the shaft.. in the lathe, its perfectly straight.. within 2/100s. As i said.. this is beyond what i'm capable of. :/

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