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John Morris has shared 2 photos with you! | Flickr
I used hi-spot blue to check how much contact I had after taper-grinding the arbor on the vintage B&S no. 1 univ. grinder. I had to grind it as the former owner had somehow chowdered one side of the arbor-looked like coarse sandpaper and I didn’t want it in my spindles. I set up the grinder as best as I could with dial indicators and the built-in taper scale, which ends at 3 in./ft. The 50-taper arbor is 3.5 in./ft. So some interpolation was needed. Anyway as you can see only the bottom inch of the arbor taper contacted the spindle. Is that enough or do I have to regrinding it. Drawbar was drawn up tight after blue put on.
John Morris has shared 2 photos with you! | Flickr
I used hi-spot blue to check how much contact I had after taper-grinding the arbor on the vintage B&S no. 1 univ. grinder. I had to grind it as the former owner had somehow chowdered one side of the arbor-looked like coarse sandpaper and I didn’t want it in my spindles. I set up the grinder as best as I could with dial indicators and the built-in taper scale, which ends at 3 in./ft. The 50-taper arbor is 3.5 in./ft. So some interpolation was needed. Anyway as you can see only the bottom inch of the arbor taper contacted the spindle. Is that enough or do I have to regrinding it. Drawbar was drawn up tight after blue put on.