02-15-2022, 09:16 PM
The next part on the Bar Stock Steam Engine build is the Cam Bushing. This part is made out of a flute plate of brass. It has to be a nice slip fit over the cam that I made earlier. As the cam rotates with the crank this transfers motion to the valve. So it had to be a nice slip fit without excessive play.
Here I machined a slug that was a nice press fit with my fingers. The rod fits into the collet in my mill then into the hole in the slug. This is how I helped locate the centre of the hole with the centre of my rotary table.
Trevor
Here I machined a slug that was a nice press fit with my fingers. The rod fits into the collet in my mill then into the hole in the slug. This is how I helped locate the centre of the hole with the centre of my rotary table.
Trevor
Lathe - Craftex CX701, Mill - Craftex B30 Mill/Drill, DRO - blu-DRO