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Atlas Shaper Crossfeed

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trapper:
https://groups.google.com/forum/#!topic/rec.crafts.metalworking/Rij_-1WT1M0 And another

Manxmodder:

--- Quote from: awemawson on September 05, 2015, 10:23:08 AM ---I'm rather surprised that there is not a key and keyway in that position as there will be quite a jerk as it sets off on it's travels.

--- End quote ---

Andrew,
Just a little update: further examination shows the leadscrew shaft has a conical detent drilled about 3.5mm deep and the grub screw is of the pointed type so it is effectively keyed onto the shaft.....OZ.

tom osselton:
I'm wondering if it needs to be keyed because the shaft that moves the table is keyed so the ratchet can spin free on the shaft I'll have to take a look at mine.

Manxmodder:
Tom,I would think the ratchet pawl carrier is the bit that is free to rock back and forth on the leadscrew shaft. The splined ratchet wheel itself has to be firmly affixed stationary to the leadscrew shaft or no advancement movement would be transmitted.

See my earlier photo of the Alba arrangement:   
 http://madmodder.net/index.php?action=dlattach;topic=10925.0;attach=25310;image

OZ.

Sackett:
My ratchet wheel is on a stub shaft,n drives the gear on the crossfeed shaft

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