Thread: BMW 320 Group 5
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Old 08-16-2015, 04:24 PM
skintkarter skintkarter is offline
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Join Date: Feb 2013
Location: Auckland New Zealand
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Quote:
Originally Posted by crystallographic View Post
I like the bead roller design. I'm a big fan of having an air cylinder for the upper shaft pressure. Snappy action is best for that - instead of winding a screw up and down.

You are doing nice work, Richard. Good to see.
Many thanks Kent! This is very much new ground for me, so baby steps.

Actually it's not an air cylinder (I know you like your air cylinders!) on the top shaft of the BR, just an over centre plunger as per Tom's design. I've made a few mods to it, but that is just a grease nipple on the front. I did use a fine thread Metric bolt as the adjuster (M14x1.5) so I know that turning it 6 flats gives me 1.5 mm of depth, 2 flats is 0.5mm etc.... I did plan on numbering the flats. Got some skateboard wheels to experiment with last week and machined up all of the scrap nylon stock I had lying around. Quite like the nylon and it's much nicer to broach keyways in than 4140
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"I know nothing. I from Barcelona" (Manuel - Fawlty Towers)
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