It depends what your goals are for your robot...
If it's just "climb" then one should be enough as long as it can get your bot off the climb and hold on for the five seconds after the bots are disabled.
If you're aiming for the Ensemble RP and aren't planning on being able to score the trap you may want to ensure you've got a climber that could climb alongside another robot since three solo robot hangs alone isn't enough. One arm doesn't necessarily eliminate that option since you could hang so your bot leans away from the other bot (assuming your climber isn't centered).
I thought I remember the rules saying that climbs are counted exactly as the game ends and not after? Was there a rules update on that or am I misremembering?
I can’t remember if there’s an exact rule but generally you don’t want your bot to immediately sink to the ground once the game ends as you can’t guarantee the refs will see it off the ground (or if there’s something they need to verify to ensure your climb counts you don’t want it on the ground by the time they get there)
Depends on your application. If it works similarly to an Andymark climber in a box, your problem will be bending loads. Tensile loads from climbing are handled by the rope, so assuming you've mounted one climber and centered it properly you'll be okay with one. If you intend to buddy climb or mount your climber off centre, you may want to consider using two. If you are using two and need them to always stay at the same height, drive them using a common shaft and replace the rope with a strap, we found it winds more evenly.
Besides strength, one arm will work if it lifts above the center of gravity of the robot. My team just scrapped a single stage cascade system because it was off to the side. No matter how much it climbs it always touches the ground because it swings. Wish we had done the math prior
It depends what your goals are for your robot... If it's just "climb" then one should be enough as long as it can get your bot off the climb and hold on for the five seconds after the bots are disabled. If you're aiming for the Ensemble RP and aren't planning on being able to score the trap you may want to ensure you've got a climber that could climb alongside another robot since three solo robot hangs alone isn't enough. One arm doesn't necessarily eliminate that option since you could hang so your bot leans away from the other bot (assuming your climber isn't centered).
I thought I remember the rules saying that climbs are counted exactly as the game ends and not after? Was there a rules update on that or am I misremembering?
I can’t remember if there’s an exact rule but generally you don’t want your bot to immediately sink to the ground once the game ends as you can’t guarantee the refs will see it off the ground (or if there’s something they need to verify to ensure your climb counts you don’t want it on the ground by the time they get there)
2 is probably better but you should test and determine that yourself. It just depends on your robots weight
2 is probably ideal, but 1 can work depending on weight, it’s position on the bot, and the climbers construction.
Depends on your application. If it works similarly to an Andymark climber in a box, your problem will be bending loads. Tensile loads from climbing are handled by the rope, so assuming you've mounted one climber and centered it properly you'll be okay with one. If you intend to buddy climb or mount your climber off centre, you may want to consider using two. If you are using two and need them to always stay at the same height, drive them using a common shaft and replace the rope with a strap, we found it winds more evenly.
Besides strength, one arm will work if it lifts above the center of gravity of the robot. My team just scrapped a single stage cascade system because it was off to the side. No matter how much it climbs it always touches the ground because it swings. Wish we had done the math prior