Where would you put your motors for a DR4B and why? I’ve always wanted to know the PROS and CONS of either having motors on the moving lift, or stationary on the towers of the lift. I hope you get what I mean here.
I can list the pros and cons of both. I currently have my motors mounted on the lift (on the stage between the two four-bars), which is better because there is less slop involved (both four-bars should have the same angle. However, the downside compared to having motors mounted at the bottom is that the lift has to move the weight of the motors. This can be countered by rubber bands, but not perfectly, and it still adds inertia.
I may switch to tower-mounted motors just to try it out, because I really need to get some weight off my lift. My motors seem to be struggling, although mostly for other reasons.
Another, smaller con of having the motors on the moving 4 bar is that you may have to worry about the longer wire getting caught in your lift or other moving pieces. This is probably only a problem if you’re completely incompetent with wiring, like I am.
I have an internal stacker and I put my motors down by the base and chained them up to the tower. I don’t have to lift them this way and they aren’t in the way of my dr4b as It moves past that area.
Yeah, like I said, I’m terrible with wiring. Having the wire moving is another concern, but a minor one at best (worst?).
EDIT: Never mind, it seems I can’t read.
If you dont mind me asking, what gear ratio are you using, and do you find the friction from the chain to be noticeable?
Holy cow. That is hilarious because we did the exact same thing for our mobile goal lift (initially). That looks like a picture of what our robot used to look like. It would be what we do if we put motors on the bottom for our lift, too. Not much space to work with.