Fair does that is a great bit of engineering.

Lever quick release no.2 is now complete.
As this one is for the monopod I could afford to make it 4 mm thicker to allow for a couple of design changes. Location of pins and springs swapped over from ver.1 allowing longer slots to be cut for the safety stops. Also more meat in the base to accommodate the locking grubscrews.

Just waiting for delivery of a 12 inch length of 3" wide x 1/2" deep aluminium to arrive to make more plates. :)

Don

After a bit of a delay, the metal finally arrived to make a set of plates for the two quick release bases.
Three have a 1/4UNC screw, two for cameras, one for bins, and the other one is 3/8UNC to fit a base I made while waiting, for a Nikon EDIII field scope.

Seems these are lever operated Q/R's are gaining in popularity as I see Markins are now producing their version, albeit at the moment only as an option with the M20 ball head. Link
http://www.markinsamerica.com/MA5/M20.php?req=M20LK

Don