Hi, this year I am going with a double reverse four-bar. Does anyone have any tips on how to make it fast but also stable and strong enough to hold the weight of plenty of cubes. I plan to have four motors lifting on it.
Aluminum screws are your friend, box screws are your friend, aluminum C-channel is your best friend, stable support towers are your best friend.
Well yea I can see that being pretty obvious. The big question is if I should change the inserts in some or all of the motors
Are these v5 motors? If so, you do not need 4 lift motors, that is completely overkill.
-Do not use 4 v5 motors, use 2.
-Focus on having seriously reduced friction so that the motors do less work.
-Do not use shafts, use screw joints.
-Make your lift as skinny as possible.
Check out this thread: Refining our DR4B. It might save you from having to deal with some common problems.
Don’t put the towers that the whole lift sits on at the very front of the robot or your going to run into some tipping problems.