Team 2791: Shaker Robotics Presents Our 2020 Robot

Team 2791, Shaker Robotics, is proud to present our 2020 robot!

A huge thank you to all of our incredible students, mentors, parents, and sponsors for making this robot possible.


Here’s a spectacular animation created by a freshman design student: https://youtu.be/PZYKcOYVCAM

Our first ever technical binder can be found here: Shaker Robotics 2020 Technical Binder.pdf (2.5 MB)

The public CAD can be found here.

45 Likes

That is a pretty spectacular animation

8 Likes

Love the robot and video, especially the music!

Where are the NEO 550s?

9 Likes

Well-organized and thoughtful public documentation? Who are you and what have you done with 2791?

25 Likes

:flushed:

2 Likes

This robot rocks! Here’s the interview breaking down more about 2791’s build season and robot: https://youtu.be/qrf6C6IPsP8

4 Likes

Looks nice!

Are the vectored wheels backwards in the CAD on purpose?

2 Likes

I think it’s a great robot. Hopefully you get to play again one day.

In your FUN interview you mentioned that you weren’t happy with your climber. Can you elaborate? Why do you think a telescoping design would have been lighter?

3 Likes

Was hoping no one would notice that! No, that was an accident that we caught before we assembled it and I suppose we forgot to fix in the CAD.

Thank you! I hope to see 5406’s robot in action this year as well.

When deciding and prototyping climbers, we were torn between going with a telescoping design and the one we have now. If I recall correctly, we decided to move towards the climber we have now due to packaging & layout reasons as well as the potential for a future active climb, and away from a telescopic design due to its potential complexity (either quite a few stages or a pivot).

Throughout the season, the climber ended up being a major pain and struggle for us. Our method of deployment was messy and sometimes caused inconsistencies in the raising of one or both sides of the arm, and the lining up of the climb was pretty hard.

If we were to do it again, we would definitely go with a telescoping design (and we were looking into it if we were to make champs). We have more experience designing and constructing them, while the current climb is the first time we’ve done something like this. I’m not completely sure that a telescoping design would be lighter but I think it might be close, and we had some weight to spare.

If we were forced to do a similar climber, I would be inclined to do something very similar to 5406 or 111 with a virtual four-bar :slightly_smiling_face:

8 Likes

Fun fact: the flywheel motor rpm setpoint for the trench shot is 2791 rpm

18 Likes

All made by a freshman

1 Like

One of a kind :100:

Great robot and incredible animation video!
If you could get more technical regarding the animation; rendering procedure, software and techniques used, etc., that would be awesome.

I made the animation in blender 2.8. Every moving part of the robot was exported as a separate .obj and imported into blender. I suggest organizing parts by each mechanism (ex. climber, hopper, etc), it keeps everything mostly organized while importing. After importing, I would suggest parenting all the objects to something that wouldn’t be the main focus of the animation, typically the drive train. Every object has to be retextured, and it just takes some tweaking around to get it right. I personally don’t like the textures, but I’ll accept it for a first try. I believe I used 1.000 metallic, 0.364 roughness, for the bare metal, and 1.000 metallic, 0.738 specular, and 0.135 roughness for the powder coated parts. Animation is just key framing every movement and rotation of each individual piece. The background was a sky hdri with 2.2 turbidity and 0.3 ground albedo with a strength of 4. I used cycles render with 1024 samples at 1080x1920. It took 2 nights with 10-15 computers with gtx1050s and i5s, 30 hours on a gtx 1080 and i7 8700k, and 10 hours on a gtx 1660ti and i7 9750h to render the animation.

19 Likes

Thanks for the detailed explanation! Keep up the great work :ok_hand:

Great design.

This is not the Shakey robotics I met in 2009…what is going on.

That animation is really really cool. Would love to get a tutorial from your student about how to create one of those!

6 Likes

Will there be a code release?

Yes

3 Likes

Awesome! Any idea when?