C Ax ( fourth ax ) of an engraving machine

Here i show you a drawing of a c ax that can use on every cnc engraving machine.
drawing round ax of engraving machine

click on the picture to enlarge.
 ( 250 kb )

I shall try to explane the working of this product.

When you moves your cutterspindle in A direction , the complete table moves except the two vertical peaces material at the backside ( E ).
From one piece to the other  is a ironwire attached that in the middle goes round a cylinder.
So when you moves the cutter , the cylinder will turn around.
picture of round ax of engraving machine

click on the picture to enlarge.
picture of round ax of engraving machine

click on the picture to enlarge.
picture of round ax of engraving machine

click on the picture to enlarge.

All the leadings are necessary, because the spindle must move freely.