Hi,
I got the new sub-plate for my press with the new ejection mechanism. All my shell plates are of the older type, so I tried to estimate the size of the groove, chucked them up in a lathe and broke a few carbide cutters trying to machine a groove into them.
Unfortunately it seems my groove isn't quite right and the shell plate binds when tightened down to the sub-plate. I'm not sure which dimension is off.
Does someone here have one of the newer style shell plates and a set of calipers? I'd like to know the depth of the groove, and the distance from the outer radius of the shell plate to the inner and outer edges of the groove.
I got the new sub-plate for my press with the new ejection mechanism. All my shell plates are of the older type, so I tried to estimate the size of the groove, chucked them up in a lathe and broke a few carbide cutters trying to machine a groove into them.
Unfortunately it seems my groove isn't quite right and the shell plate binds when tightened down to the sub-plate. I'm not sure which dimension is off.Does someone here have one of the newer style shell plates and a set of calipers? I'd like to know the depth of the groove, and the distance from the outer radius of the shell plate to the inner and outer edges of the groove.

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