Guys, I'd really appreciate your insights on this. Currently my head is designing all sorts of contraptions. Some of them have moving parts, such as a motorcycle lift, for example. Other ones I'd like to fold up, etc. Now, inside my head, where the party is going on , this is all quite simple, but then I start thinking about how to actually do it, I don't have a clue on exactly what to do. The simplest thing my head can think of is two box sections with a hole drilled through and then a bolt through. But this isn't a very good construction, especailly if weight is being applied. I'm assuming that there's better ways of doing "movable" things. Things that hinge, things that have joints, things that pivot, etc..!? I've seen that you can, for example, buy ready made hinges for making steel gates. Is there similar "kits" for smaller more delicate projects? Any insight appreciated!