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Topic: Hayfeeder: use electronic locks on timer (Read 436 times) previous topic - next topic

Robin2

I have my arduino, code and everything working, but it seems that my locks are not strong enough to open with the weight of the trapdoor and hay on it... (in video test without hay, that is realy the limit)
Add some physical support that takes the weight of the trapdoor so it is not resting on the locks. Locks should be there to prevent a door being opened. They should not be carrying a load under normal circumstances (only when the thief tries to force the door open :) )

...R
Two or three hours spent thinking and reading documentation solves most programming problems.

dave-in-nj


Hello,
I'm back with a question...
I have my arduino, code and everything working, but it seems that my locks are not strong enough to open with the weight of the trapdoor and hay on it... (in video test without hay, that is realy the limit)
(for the test they open all at once, but normaly they will open one at a time on the timer)
Anybody good idea about opening mechanisme?  (min 2kg of force)

- Magnets to hold doors isn't realy an option because of the risk of heat (constant power to hold door shut and so heat -- > not good mix with hay)
- push-pull solenoid didn't find a strong enough...
- ...

Thx for your input
do you have links to that lock ?
what is the mechanism that drives it ?
a Simple DC motor with a screw would spin and have a rod extennd into the space and be the stop that holds the door up.
then you spin the motor, the scrrew retracts and the pin is withdrawn.
most  of the answer lies in what you have and can get easily.

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