Spiling sticks, joggle sticks and a “digital” rule

[Isambard]

Vinyl layers use a similar technique, although ones I seen and used myself, are just a small rectangular block, running a line off the opposite to the edge.
Then use the same block to transpose back onto the vinyl...

[Philip Davies]

Vinyl layers use a similar technique, although ones I seen and used myself, are just a small rectangular block, running a line off the opposite to the edge.
Then use the same block to transpose back onto the vinyl...

Yes, here’s the little block I used to keep in my tool bag. I also used it to space nails or screws into corners