Made up one of these 7" degree wheels today, from an aluminum sheet and a printed degree wheel.
Bolts on to the front damper of assembled engines, for reading valve timing events.
Can just glue on the printed degree numbers to the outter edge of the damper for some quick temporary testing too.
View attachment 1715763566
View attachment 1715763567
View attachment 1715763568
View attachment 1715763569
Example:
View attachment 1715763570