i measure the camera shapes using calipers and micrometers and a coordinate measuring machine; drawings are done in 2-d Autocad (usually going through several iterations), then CNC machining programs generated. The profiles and interior cutouts are done from plate on the CNC waterjet, then the exterior machining and detailing done on a vertical CNC mill (three or more different tools used)
all of my bases rely on some sort of mechanical stop (in addition to the screw) so the base will not rotate. for the sony with vertical grip, i am using the series of grooves in the rubber base, making matching ridges in my baseplate. probably the weakest point will be whatever secures the metal tripod threads into the plastic of the grip itself.
i agree, the slid-over L-plate grip does block the battery access and i accepted that as a trade off for overall simplicity. I did consider leaving the end open so as to not block the battery, and could alwasy make this change should interest warrant it.
all of my bases rely on some sort of mechanical stop (in addition to the screw) so the base will not rotate. for the sony with vertical grip, i am using the series of grooves in the rubber base, making matching ridges in my baseplate. probably the weakest point will be whatever secures the metal tripod threads into the plastic of the grip itself.
i agree, the slid-over L-plate grip does block the battery access and i accepted that as a trade off for overall simplicity. I did consider leaving the end open so as to not block the battery, and could alwasy make this change should interest warrant it.