Once players have explored the Vale and brought their resources (5kg sandbags) back to camp the bags are 'poured' into the 'Infernal Machine' which is a game mechanic where a referee switches a heavy sandbag full of ore for a small metal ingot of the appropriate metal. At the first event players were left to waft bags in the general direction of the machine so I thought this would make a really nice addition to the existing machine. The principle of operation is simple, open the chute at the bottom and pretend to pour resources into the machine. The gauge should slowly rise to 100% and it should ding a bell when it gets there to let you know the machine is full. Stay at 100% until the chute is closed, at which point the gauge should return back to 0%. I started prototyping the 'ding' mechanism, if I couldn't get that to work then there was no point continue. A screw on a spring is pulled back by an arm on a gear, once the spring s