728VT's with older cnc kits check your bolts.

GB21

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Jan 23, 2021
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The original instructions called for a M8x30mm bolt for the z axis nut housing. The bolt is too short and after 9 months mine failed catastrophically shearing off the cast iron boss dropping the head. It did cross my mind when converting to cnc that the bolt seemed a little sort but I guess hindsight is 20/20.

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Are you going to rehabilitate the broken casting, or replace it?
 
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