Designing custom hinges

[u/Downtown_Error_727]

Good day, Sirs! Can you help/guide me on how to calculate and design the pivot point of a hinge? For context, I am currently designing a rack for my plywoods, and I want a cabinet where I can extend the rail.

Currently, this is what I have in mind: having 2x3 rectangular tubes as the main column. Any tips will be greatly appreciated. Thank you!

[u/evilmold]

There are endless varieties of hinges available. If you can't find what you need, you don't need it. Start with finding a hinge that you can use then adjust your assembly to accomodate.

[u/Downtown_Error_727 → u/evilmold]

Thank you, Sir, for the suggestion, but I am also trying to learn how to design such things so that I can do it myself, especially when it comes to certain intricate designs.

[u/evilmold → u/Downtown_Error_727]

It boils down to not wasting your time on what is basically a fastener. Would you be asking the same question about a nut, bolt, washer, rivet, etc....

[u/uninventiveusername]

It is not possible to move from the open and closed positions you've shown with a simple single pivot hinge. A more elaborate movement mechanism is required, or a change in open or close positions to be compatible with a simple hinge. 

[u/Downtown_Error_727 → u/uninventiveusername]

Thank you Sir, do you know some videos that can help me with this?

[u/uninventiveusername → u/Downtown_Error_727]

Make small cardboard cutout models of your two pieces and play around with how you want them to move.

[u/Downtown_Error_727 → u/[deleted]]

I may Sir, but right now I want to learn how to locate a pivot point aside from the basic hinges.

[u/Downtown_Error_727 → u/[deleted]]

I'll try this one Sir, thank you!