I'm still waiting for a 'rod clevis' to go on the end of my 250mm cylinder which will enable me to test the skeleton lifting mechanics. Ironically the website 'instockdirect.com' informed me they no longer stocked such an item 2 weeks after I ordered it.
Whilst waiting I designed the PCB for the parallel port interface. Here it is:
I originally intended to manufacture it myself but I found someone to make it for me in China for £46 delivered. Bargain!