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Made a new set of cable slings today:
Using prestretched 2mm s/s wire and 10mm linear bearings on s/s M10x100 cap screws, I covered the bearings with heat shrink tubing, then fitted 19mm anodised clamps and s/s turnbuckles to complete the pair.
Each sling runs from the top corner to the diagonally opposed bottom corner, crossing under the mirror, they are located in place using 19mm s/a velcro tape...
Very smooth operation, any movement of the collimation screw is seen as movement of the linear bearings...
(For those asking why?..... this design keeps the mirror perfectly centred without the need for guide posts)
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