Robot Arms sent off for refurbishment!

Our two Mentor robot arms are being repaired. After 30 years of use, they were showing their age and the faults were multiplying. They were bought when IBM PCs only had monochrome monitors!!
Feedback PLC in Crowborough will be fixing them; surprisingly the arms are still being manufactured.

Trains in close-up

Two engines individually controlled, by virtue of the track being split into 3 sections. The 4 digital outputs used from the box control the 7 sets of points, 2 of the analogue outputs controlling the engines. 20 reed switches triggered by magnets fixed to the engines providing positional feedback to the program.

Computer Controlled Train Set

Controlled using the excellent Deltronics 'Control It Plus', using the CoCo control language.