Thank you everyone for the feedback!

In all honesty, I originally wanted to build an axe bot but the idea of working with high pressure CO2 frightened me more than a spinner!

The plan for testing the spinner was to clamp the bot, put it in a shed and film it with an old phone, does this seem okay?

Thanks very much for the feedback on the drive motors - pity I already bought two but hey ho. This will no doubt require a change to my bulkhead design as I plan on bolting them to the bulkheads and using square ‘clamps’ per my design.

The main reason I switched to a round belt is because I couldn’t find an aluminium pulley supplier for timing belts that would customise the bore to order - as I mentioned I don’t have access to a pillar drill to bore them myself. Is anyone aware of such a supplier? The motor shaft is 6mm and the weapon shaft is 20mm. I was looking at using bore reducers but again I couldn’t find any with reasonable specs.

i totally take into account all of the comments regarding safety and I do understand the risks involved. Ideally I would like to create a more simple bot for my first go, however with the lack of available facilities to fabricate and machine parts myself I can’t keep the cost down. Therefore I would rather make something vaguely competitive if I have to go all-in.

Thanks again!