40000A Push Back Robot Reveal | Great Planes

On behalf of team 40000A Apogee I’m proud to present our reveal for the Great Planes signature event. Its been months of work, but we are ready.

Robot Statistics:
1 tournament won
16 block capacity
4.5 blocks per second scoring
6 motor 600 rpm 2.75 inch wheel drivetrain
2 piston parking break
2 piston matchload mechanism
2 piston double park mechanism
1 piston descore
1 11 watt motor scoring tower
1 11 watt motor intake
8 feet of chain

thats alot of chain…

How do you index between long goal scoring and hoarding? There seems to be no pneumatic cylinder that switches between the 2. Are you using the intake motor for this as well?

How much does your robot weigh? How do you split up the 2 11W motors to power the basket intake? Do you use ratchets to accomplish that?

If you look closeley, we have a ratchet on each side of the robot. We use a ratchet system that allows our motor to spin the selector roller in multiple directions, but no matter what direction the selector roller spins, the rest of the scoring system always rotates in the same direction.

We did this because in our testing the very first roller in a basket system needs an enormous amount of torque to score at high speeds, meaning that using 2 5.5 watt motors would have been suboptimal, so we went this route which allowed us to have one 11 watt motors worth of torque on the first roller at all times.

Our robot is 15 pounds. The general consensus from the community is that it is too heavy, but I chose this because last year I had a 13 pound robot that ran the same drivetrain ratio, and It was still nimble with a mobile goal, which weighed 2.2 pounds, which gave me the confidence in choosing such an ambitious speed for this drivetrain.

I already answered the question about ratchets in response to @BananaPi

Nice! I got around this issue by using combining my intake and scoring motors to either intake blocks into the hoarding basket or score blocks.


(don’t pay attention to the shaft. My CAD decided to disintegrate some mates…)

Mine needs to function differently to this because it is front to back instead of front to front like yours.

How do you index between middle and top goal scoring? Very intriguing.

One of the coolest bots of the season by far. Basket supremacy fr

One very good basket bot I’ve seen so far is 39Y, if they get a full basket, they can fill an entire long goal! Very good.

Ok, update post!

We took this bot to three total events, and are retiring it, but I just wanted to pop back into this thread to give a bit of a “robot recap.”

This bot went to two local tournaments. We made semifinalists at one and tournament champions at the other, as well as bringing home a Create award.

It also went to two signature events, that being the Great Planes signature event as well as the Smoky Mountain Forge signature event. We made grand finalists both times, alliancing with 6842V the first time and 57249C the second for eliminations. At Great Planes, we were also able to bring home a think award.

Just as a minor addon, the main reason we are switching away is because basket bots require too much intricacy at the moment to compete against traditional robots such as “riguan style” or S-bots, meaning it is guarunteed to be heavier or slower in most matchplay scenarios. We want to switch to a robot that is lighter and faster in all respects, and feel pretty confident that we stretched this bot to its limit.

Feel free to ask any questions!

I think you built the best basket/hoard bot I’ve seen this season. (I was rooting for you at Smoky and Great Planes)! I respect your decision with rebuilding a faster bot, and good luck with your Ruiguan/S-Bot!

Who said I was doing riguan or S bot?..

(lemme guess, raidiant bot?)

I might’ve assumed a bit… in this part of the season, Ruiguan and S-bot are the lightest and fastest robots that can score efficiently.

did the ball aligner work really well or is a polycarbnate aligner better?

@Entropy you must really love 2145 after these two sigs huh. lol jk :smiling_face_with_tear:

that’s a radiant bot…