design Ideas

Only get points for one ball. Also it says that if both robots are touching the ball the points are only awarded once.

I would be surprised if they weren’t. They fit 5 objects, so if they are maxed out (and they will be) each one is worth 25 points. Scoring all the large balls is worth 20, scoring all the average 5 remaining buckies is worth 10, and each hang is worth up to 20 - but most of these things won’t happen in most games, so 25 is a lot. Also, each bucky in a goal counts (nearly) twice because the goal space it uses up would be worth 5 points to the other alliance.

I think the best teams will be the best because they can steal the opposing alliance’s goal space in addition to claiming their own, either by getting there first or by descoring. Any game in which you get all 50 goal points should be virtually unloseable.

Also note that a team cannot descore more than three balls at any time. That makes things slightly difficult when considering a strategy involving descoring…

I don’t think that’s a big limitation, given how difficult it will be to descore at all. Having to use your descoring mechanism twice in a match will be a pain but I really doubt it will be the deciding factor that makes descoring not worthwhile. That’s more likely to be the fact that you need a 24" long thing on your robot that isn’t useful for anything else.

if you are the only one that can descore, and you do it well
you just got 50 permanent points, which is pretty much GG

#protip Build a pushbot. Could viably qualify for worlds this way.

I see an NZ catapult bot being the efficiency scorer this year… which means someone is going to engineer a wallbot with a volleyball net:p:D

VEX designed this competition to test team’s creativity. If the only design teams use is the NZ design from Gateway, then all someone has to do is build a robot that can beat one of them because it also then has the capability to defeat all others as well. I am personally going to try for 2 hands, one in the front for Bucky Balls and a larger one in the back powered by pneumatics for the large balls. Hopefully this design is what I need to make it to Worlds.

I want to see some eight wheel drives using 4" wheels this year -

Give me the parts and I won’t think twice of why I did it.

That’s exactly what we are planning for our first try except we will use 4 omni and 4 mecanum since there’s no sacks to get stuck on and the omni wheels will help overcome the slippage we got with mecanums alone.

Nice! It should be noted that the upper gears on what I posted do not line up with any of the existing hole patterns and you would need to drill your own holes for those. The more I think about it, chain + sprocket may be a much easier & modification-free way to do an 8WD. I think I also had something like less than a quarter of an inch of clearance on the 18" bounding box dimension, so not a lot of breathing room.

Our first design for our drive train had 10 wheels… but it caused way to much friction to actually power all of them.

Then you did something wrong.

Yeah we did. It was our first prototype of a two speed shiftier that was thrown together. We ended up ditching 10 wheels, as it wasn’t really necessary at all, and actually lined up the axles so they spun properly :wink:

The 8-wheel drive has one problem, hanging. That looks super heavy.

THOUGHTS:
Agreed, it would be much easier to just raise 4 mecanums [2 per side] by 1/2 inch and avoid using the wheels in the middle to avoid the additional weight, and making going over the bump easier and less likely to tip the robot over.

TEASER
I used 4 mecanums, 2 1x2x1x35 c bars, 2 1x5x1x35 c bars, 5 2x2x35 angle plates and assorted nuts, screws and standoffs to create an entire robot with power expander and intake weighing less than 12 pounds

if I get 100 likes, I will post teaser pictures!!!

Seems like a lot of people are going that route. We had one like that earlier this year. Swapped some pieces around to get an X-Drive and a better lift on this draft, and I think it’s what we’ll be taking to our first three competitions.

How much did what you built resemble our first draft of 127C? I’ve got some photos on the website, but it was basically just a Mech base with a 4-bar lift and an intake.