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Box release mechanism ? - ideas or suggestions?

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raynerd:
Ho ho ho  :doh:

Lol, yes I know what you mean. It would certainly be tricky to reliably get it back to the start.

I'm moving back towards a 360 deg rotation pivoted from the centre of one side

BiggerHammer:
My apologies if I have missed this somewhere in the thread. How about just using a solenoid to release the bottom panel. Spring load the bottom panel. Actuate the solenoid and hold. Bottom panel tilts all coins drop. Now that the weight is off of the bottom panel the spring should return it to the closed position. Just have the solenoid re-engage and bob's your uncle.

raynerd:

--- Quote from: BiggerHammer on September 16, 2013, 07:15:14 PM ---My apologies if I have missed this somewhere in the thread. How about just using a solenoid to release the bottom panel. Spring load the bottom panel. Actuate the solenoid and hold. Bottom panel tilts all coins drop. Now that the weight is off of the bottom panel the spring should return it to the closed position. Just have the solenoid re-engage and bob's your uncle.

--- End quote ---

For this idea I presume the mechanism would be working from the bottom and on show

TLGriff:
You just need to ask a gunsmith.

The trigger of a gun works the same way. As pressure is increased, it holds hammer up until the very last instant and then drops it. To simulate this, your box would need a pan inside (the trigger), pivoted along one edge to catch the coins and linked to the bottom of the box, the hammer (also pivoted), to hold it closed. The pan would need a sear attached to it to engage a catch on the side of the box to hold everything shut. The coins would add more and more weight to the pan until the sear would no longer hold. Then the pan and bottom would release together, dropping the coins out the bottom.

Tom

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