The cam grinder is finished and has sucessfully ground a camshaft for the Westbury 'Seagull'. When I say finished, I have not yet built the bit to oscillate the rocking frame side-to-side over the width of the wheel. I just moved it slowly by hand instead. It needs doing, as I had a overshoot and one side of the adjacent cam is no-longer quite perfect. Overshoot too far and the cam template could fall off the side of its shoe.
The pictures actually show things after I had finished the job and cleaned up. I did not want to mess about with photography while I was trying to concentrate on making cams.
In practice the areas behind and below the workpiece would be stuffed with kitchen paper to collect the overspray of coolant, which went everywhere except out through the wheelguard drain pipe. I found I had to put a pretty tight squeeze on the liquid pick-up pipe to reduce the flow enough to just keep the job wet, even with the air tap little more than cracked open.
A minor annoyance is that there is really no way to get a mic across the cam in situ. The shaft has to be removed for measurement. On the other hand, it does help prevent getting grit in the micrometer.
Additional bits not shown are a block for mounting a wheel dresser on the 'tailstock', a height gauge to transfer the height of the top of the wheel to the pivot bar (a requirement for preserving the correct geometry), and a synchronising gauge for the setting the cam template and the camshaft 'catch-plate' in phase.
The pictures actually show things after I had finished the job and cleaned up. I did not want to mess about with photography while I was trying to concentrate on making cams.
In practice the areas behind and below the workpiece would be stuffed with kitchen paper to collect the overspray of coolant, which went everywhere except out through the wheelguard drain pipe. I found I had to put a pretty tight squeeze on the liquid pick-up pipe to reduce the flow enough to just keep the job wet, even with the air tap little more than cracked open.
A minor annoyance is that there is really no way to get a mic across the cam in situ. The shaft has to be removed for measurement. On the other hand, it does help prevent getting grit in the micrometer.
Additional bits not shown are a block for mounting a wheel dresser on the 'tailstock', a height gauge to transfer the height of the top of the wheel to the pivot bar (a requirement for preserving the correct geometry), and a synchronising gauge for the setting the cam template and the camshaft 'catch-plate' in phase.
