johnsmachines

The thumbscrew adjusters as originally installed were always a probable item to be upgraded later. But they looked crappy and although they worked ok they did not inspire confidence.

So I designed and made a better height adjuster.

It works in the middle of the sloped aluminium platten, and is controlled with a large knurled knob.

This is my working drawing of the adjuster..

It has a cranked arm which is pulled or pushed by an M4 screw thread, and a 16mm OD bearing which rolls along the underside of the platten.

The height adjuster does reduce the maximum thickness of work which can be passed through, from 50 down to about 25mm, but should cope fine with model ship planks unless I dramatically increase the scale!

One turn of the knurled knob raises the end of the platten by 1.2 – 2mm, which means 0.6 – 1mm at the sanding drum, so the adjustment can be controlled with adequate precision.