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To operate at high speed, the two halves are locked together from underneath:
To engage the backgear, the two pins are use to lock the lower half in place:
There are two corresponding holes either side of the mill head for the pins to go in:
It's a neat setup and uses "off the shelf" myford gears so should be reproducible without too much drama, but "Pin It")
The assembly works using two dial pins (I only have one right now, have to make another soon)
To operate at high speed, the two halves are locked together from underneath:
To engage the backgear, the two pins are use to lock the lower half in place:
There are two corresponding holes either side of the mill head for the pins to go in:
It's a neat setup and uses "off the shelf" myford gears so should be reproducible without too much drama, but I'm given to understand they can be a bit noisy.
If you want drawings, I have them for the Mk2 in PDF form, as well as the technical notes and build steps too. There's a few differences, Mk2 has a 6 stepped pulley (mine only has three), and the epicyclic gears are helical, not straight toothed, which should make it a lot quieter.
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