Ad 1. The size overlap in the previous rules (with teensize) was there intentionally, so that teams could gradually “upgrade” into the bigger size classes. Banning robots of certain size is the worst possible solution.
Ad 4. Either 100 as it’s a natural size barrier (meters instead of centimeters) or 1.1m as thats exactly in the middle of the previous teensize description (80-140)
With the merge of TeenSize in KidSize and AdultSize, one of the problem which appeared is the following: On one hand, lowering the minimal height for AdultSize is taking a step back both from a research and from a public point of view. On the other hand, increasing drastically the upper limit for KidSize is problematic for small robots.
I don’t really see the reasoning here, you want to be fair to one class, while argumenting it with a step back for the other. We can turn the argument around and say that having larger robots allowed in kidsize is a step forward for kidsize, while having slightly smaller robots in adultsize is a problem for large robots which cannot get up, need to move less mass with the same sized actuators and so on.
What are the exact problems for small robots? Because I cannot see any arguments written apart from “it’s problematic”.
It is always a design decision which constitutes a trade-off. Do you want to have robust robots that dont break when falling down? Build small robots then. Do you want to walk faster, but require more actuating power? Build bigger robots.
Honestly, teensize teams in 2019 were not that fast, they had problems walking without falling in open space, getting up and couldnt kick well, I am pretty sure they would not do better than kidsize teams. These are the exact reasons teensize was removed, therefore it is not an argument.
In any case I see this as an opportunity for kidsize team to literally “grow” and take advantage of the possible size increase to gradually develop larger platforms that can walk faster due to the increased size, which comes with its own difficulties.
Regarding the step back for adultsize: I am pretty sure we will not cut our OP2X robots head off, just to be smaller and have an easier time doing whatever. I am almost sure other teams with existing robots will not modify them as well.
In case there is no gap, how to be fair for Q4 given the fact that there are far more teams in KidSize than in AdultSize.
The number of teams is not an argument. It is fluid, and is a result of the rules. In any case, a gradually growing (year by year) minimum robot height for kidsize should be enforced.
PS: On a side note, I personally find it sad that changes are being made again, without even having evaluated the previous ones for 2020 (due to obvious reasons).