setdesigner
Member
I have been working on a hinge for a trap door. This is what I can up with, using 1/4" flat aluminum bar that I can easily machine on a cheap cnc router. Pivot are in bronze, but also considering stainless steal, not sure what is best in contact with aluminum for and exterior application. I also don't have any idea on how to calculate the spring cylinder force to help lift the door.
Comments and advices are welcome !
Thanks
Comments and advices are welcome !
Thanks
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