How would this not tip
Counterweights are always an option
Yes but at the end of the of the video the robot had 11 cubes each cube is .63 pounds for 11 cubes that’s 6.93 pound and the higher they get the more the robot will want to tip
A heavy counterweight won’t tip a bot if it is close enough to the ground while still providing sufficient weight to counter the stack. I’m not saying it would be easy, but it would be possible. My suggestion for this example would be building a different lift in the back and then connecting it to the front stacking mechanism.
how heavy the cubes are what i think will make or break this design. gl
.6 pounds per cube
What did you use to make the animation? It is very nice.
You would have to sow the mesh together because it has to be cut from a single piece of only like 24". It’s a creative solution, but it also wouldn’t feed as smoothly as line does. I think this is an incredible design concept - but i think it’s ultimately impractical because of other bots on the field.
You could create anti-tip wheels that deploy at the beginning due to the lack of an expansion limit.
Personally I think using elastic tubing instead of nylon rope would help a lot. While rope is extremely sturdy, the elastic tubing would have extra tension and be very effective at holding the cubes secure.
I don’t know. But if the stack is a little off the tension will end up making it worse, honestly I doubt that string design will be effective, especially under defense.
That’s a good point, I’d love to see someone test a physical model to see the true feasibility of the design. I hope someone can make it work.
I’ve got a couple of ideas that could work, but I’m also VEXU now, so I’ve got resources that VRC doesn’t have.
Cough cough unlimited motors OP cough cough
I like how no one said anything about this…
Ya I noticed that but didn’t say anything.
Its early in the season. There is plenty of time to prototype this and see how it works to work out the kinks.
Are you saying ditch the spooling system for tubing attached, or put tubing on the spool and still adjust the length as you go?
Well, as many people have said before: string is not the best idea to hold the stack of the cubes. But if, for some strange reason it was, then there is a way to improve the tensioning system.
To make sure that string is tensioned equally on all sides, first, you would need to move the spools to the top of the stack:
Then you would need to change elastic spooling, such that it gives more uniform tension over entire range. Here is one possible way of doing that by placing long elastic on two linked spools with different diameters. The force of elastic will try to move it all to the left spool (with a smaller diameter) to decrease its stored length:
Sorry for the delay in my response, but I was referring to keeping the spool system with tubing instead of rope.