@ricardo
That boom crane is ingenuous. I'm surprised that extruded / fastener system has that kind of holding strength.
Oh I don't Really trust the slots on the 80-20 to hold the winch, even if they were made of 7075 the wall thickness is to small..
the 80-20 is used as a
"Connector" frame in between the two thule beams..
This PICTURES show the platform in detail, keep in mind os a "Whatever I have at hand" Fabrication, but the winch is mount on a 5/16 6061 plate from the Bottom of the 80-20 with full surface overlap..
Keep in mind this is a "seat of the pants" test but so far the mounting frame is bullet proof, i'm in the process or redesigning the towers (finding somebody that can bend me a few 3/8" 6061 and then re do the T6 on them) to make them Overkill by a 300%
so far the only thing that worry me are this two Joins (they are from a windsurf mast and at the very core they are just Rubber, if they were only on compression, I be comfortable, but the angles at certain points of the travel are to acute..
No biggie I have a few "no compromise" ideas I just need to find the money to make them..
I've been doodling an idea for making a sort of 'Steady-Cam' armature for supporting a gas-powered two-man post-hole auger mounted in a rear trailer hitch. Was considering 2x3 boxed steel for the armature, but might have to consider this aluminum stuff instead. That's 80/20 T-slot, correct? I've seen folks on YouTube using it computer controlled cutting tables for woodworking.
go for it, just remember you usually learn more from your mistaken that you triumphs, so at the end you never end up Failing
80-20 is freaking amazing, but remember if a material is "Willing to be extruded" is can be also willing to bend somewhere else (totally illiterate comment, but end up been very accurate..
I play a mental game of re-adapting, now call the fashionable "Upscaling" something that already serve that produce you are looking to perform, for example a motorcycle bead breaker or even a Harbor press comes to mind since they are "Force multiplier" you just install a longer lever (to stay away from the Post hole too...
Have you ever seeing those big drill presses that have a "Floating head" with very stiff paralelogram structures...!?
That will take away the problem of parking the vehicle EXACTLY on top of where the hole HAS to be and will give you a few inches to fine tune the accuracy of the hole location...
Start a posting and tell me where and I give you a hint or too..
FYI: I have a background on Industrial design but i refuse to make "Another freaking Chair" so I have spend my whole life playing with structures but my experience is all empirical, so many somebody with more scientific brain can be more helpful