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Topic: Help with box
Message: Posted by: MeetMagicMike (Sep 15, 2020 12:39AM)
I have a wooden box about the size of a microwave. I have a string set up so that I can make the lid open.

I need something to reduce the amount of pull I need to open the lid. I once had a device that could be attatched to the wall of the box and
had a piston that pushed upward because of the spring inside. I used that on another project and it would be perfect for this one but I don't know what it was called or what it's intended use was.

Any help appreciated.
Message: Posted by: David Todd (Sep 15, 2020 09:31AM)
I think what you may be looking for is a [url=https://www.google.com/search?q=pneumatic+piston+hinge+for+box&safe=active&hl=en&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiNx_Opr-vrAhUNr1kKHbTYD_EQ_AUoAnoECA0QBA&biw=1493&bih=1054&ssui=on]pneumatic piston hinge[/url]
Message: Posted by: MeetMagicMike (Sep 15, 2020 11:51AM)
The pnumatic piston hinge is a great deal more complicated than the device I am looking for but it might work so I'll check it out,

Wha I'm looking for is just a piston that can move up and down with a spring that holds it up unless pushed on by a larger force.
Message: Posted by: MeetMagicMike (Sep 15, 2020 11:53AM)
I want to effectively make the lid weigh almost nothing so the string will be easier to pull.
Message: Posted by: Dan Ford (Sep 15, 2020 12:03PM)
Try a pulley system.
Message: Posted by: ekins (Sep 16, 2020 09:52AM)
Is this what you're looking for?
Message: Posted by: Mark Boody Illusionist (Sep 16, 2020 09:38PM)
Maybe a spring set up like a lift up coffee table, it takes very little pressure to open or close.

Hope this helps.

Message: Posted by: Albrecht (Sep 17, 2020 08:05AM)
Have a look at this. Not anything near to what you asked about, but it is a way to make a box lid open.
Message: Posted by: Russo (Sep 17, 2020 08:06AM)
Just a memory -once wife and I were in a restaurant -my knee hit something under the table. When knee hit 'it' the table cloth and plate rose - we called the waiter over and freaked him out. It was a loose bolt for an extension of our table.
Message: Posted by: MeetMagicMike (Sep 22, 2020 01:50PM)
Thanks guys. The divice I was looking for is much much simpler than those you suggest.

I actually managed to make one myself out of wood and a spring. I found but after a few tests decided the box worked better without it.