Tripod Fix Adjustment

I fixed my tripod a while back:

https://trochilidae.blogspot.co.uk/2016/01/tripod-fixed-ive-printed-two-new-clamps.html

The clamp works by pressing onto a small rectangular block which stops the leg from collapsing. The 3D printed clamp wasn't quite the same size as the original on one of the clamps, so it didn't push very hard on the block. this meant the leg wasn't very firmly held when extended. Eventually the clamp slipped over the block and I lost it.

So I machined a new larger block out of nylon. This has fixed the problem and the clamp is now very firm when latching the leg.