Quote:
Originally Posted by Travis Covington
If you are trying to duplicate what we did on 254, I would heed Adam's advice and simplify things greatly. We make a lot of complicated parts seem easy because we do some unique 3D milling and tabbed machining and have extensive experience doing so. You have changed some of the parts in our design to actually make them more complicated than they were originally. We also do a lot of things design wise on our robot purely from an aesthetics perspective. We could do them simpler, but chose to make them more complicated because we feel that looks cleaner and more elegant. Take a step back to analyze the problem and your chosen solution to decide if you need the complexity you have in there.
Regarding your original question - We tend to use nylon lock nuts in locations where we absolutely do not want something to come loose and do not have a piece of material behind it which we can tap to 1-2x thread diameter. We never use non-locking nuts except for jam nuts on cylinders. 1D (D = thread Diameter) thread depth is about the smallest I would feel comfortable with. We prefer to go thicker where we can. 1/4" thread depth is about as thin as we tolerate for #10 screws, for example.
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I do have to admit I definitely used many design ideas from your guys' 2015 robot. Those guides on the lift in particular caught my eye, and alot of what I saw is reflected in what I have here.
I have no cnc milling experience whatsoever, so I don't really know what the machine is capable of and not capable of. Is a 3 axis cnc machine not capable of creating concave fillets as I have in the model?