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Help with the belt tensioning spring required.

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Chris Cartwright 2

21/02/2022 11:57:19

3 forum posts

Well I can't see anything to adjust the vertical slide other than the handle screw (grub screw with two diametrically opposite slots). Under the handle is only a cylindrical part with a keyway and key, which seems to rotate freely without grabbing anything.

I've taken it down to about 1mm play using the grub screw (i.e if you lift the slide assembly against gravity, it moves about 1mm). As William said, gravity holds the assembly against one side of the leadscrew, so when winding it up/down there is basically no backlash. However, when the milling bit contacts the workpiece, the backlash is taken up before milling commences, making it difficult to set depths accurately.

Re the rotary table: The locking nuts are free, and the table will only move about 1-2 degrees, with or without the worm engaged. Any thoughts on this before I start dismantling the thing?

Cheers, Chris.

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