Rotary bed

[NickWL]

I recently bought a rotary bed for my K40 (thanks Marco - it's great). I found one problem:
If there's a sudden change of y-direction (i.e. a sudden rotation), or if the object being engraved is very 'massy' then the knurled aluminium drive rods can slip on the glass leading to incorrect rotation of the workpiece.
I believe Marco had a problem with these rods scratching some anodised aluminium bottles (or similar).

Cure:
I went on eBay and found (for very little money) liquid latex which air-cures (it's called oxidative curing and works just fine).
I dipped and cured repeatedly until I'd built up four or five layers and the result was better than the knurled aly OR a rubber roller - being, as it were, a rubberised knurling!
I can thoroughly recommend this as a super-cheap upgrade to this rotary bed.
Nick