Update

Got the necessary bits to build some limit switches for Carcinus in the post the other day, so managed to get out and fit them today. After mulling over various mounting locations and possible attachments for hitting the switches, I realised that the bolt attached to the actuator tube would work perfectly if I just mounted the switches to the base plate:



A couple of screws and some soldering later, they were good to go. Got a quick video of them in action; managed to time it with some decent music on the radio this time too:



If the actuator hits the switches at full speed, it does still try to destroy/crush itself for a split second before the power cuts out, but if it hits at a slightly slower speed it's fine. Just need to get my dad to put that into practice!

Snippet from the UK champs thread:
Quote Originally Posted by PJ-27
6- Drumroll - Sort out that belt problem Jamie!
Like so?



4mm HDPE belt guard, providing protection yet flexibility when needed. And two spare belts on hand just in case. No more repeats of last year hopefully.