Here's the latest cam model in its final form, just the photography to do.

The cam slips out from the handle tube  and can be replaced with a cam with a different profile. I'll bundle a few cam designs in the final package as well as a blank cam so you to try your own designs. 

Hopefully I'll get it completed tomorrow.

I'm stopping for the evening now, I have a proper case of man-flu and feel lousy. Bleugh.

Night all.