Everybot team did an Awesome job as usual. Thanks.
We thought you all might go in a different direction so as part of our ri3d we did some kitbot improvements.
It’s interesting to see your different take on solutions to the problems.
Some younger teams might find this interesting too.
More support for younger teams the better.
Thanks for continuing this effort in 2024.
The Amp mechanism is pretty great, nice job with that
I’ve driven the SCRA ri3d bot and it’s not as hard as you’d think. The big advantage it has is using the same mechanism for speaker and amp. You don’t have to decide at the source whether you want to do amp or speaker. It helps with maximizing amplification.
Hey, I just want it to be known that I am not saying the SCRA robot is not a viable robot strategy. Like you’ve pointed out, it offers some benefits that a separate Amp mechanism does not.
I was only answering the question of why we did not go in that direction and gave examples of how the two mechanisms differ.
Again, more resources is better for the up-and-coming teams in FRC. I’m glad SCRA put that example out there as a viable alternative.
What you all did is great! I love seeing your take on the system, and what you added into the system to make the kitbot better. I didn’t post it to take away from everybot, only to try to ensure people saw even more resources.
We were originally inspired by your efforts from previous everybots when we put together scra bot. I think individual teams can decide and choose what’s right for them. There are so many viable options for newer and low resource teasm this year. It is amazing. Remembering back to my rookie year, as a coach, there were no resources like this, it was so hard. Anything that can be done to lower that barrier of entry for new teams and increase teachers and students confidence is critical in helping that they stay involved over time. I love that the floor is getting lower, while the ceiling keeps getting higher. Its amazing to see what everyone does, especially the students.
Thank you for your efforts and sleepness nights.
While it looks very Rube Goldburg-esque for sure, it didn’t look unreliable, which is actually neat unto itself.
How well does the 60:1 hold the climber? Do you think that increasing the reduction at all would be beneficial?
If you make your robot heavier, I could see a scenario where I would suggest upping that ratio. However, that does come at the expense of speed.
Based on the calculations ran on the 60:1 reduction, we saw a theoretical loaded time to climb as 5.2 seconds. In practice we found that the climb is successful in closer to 4 seconds because the robot is off the ground before the full length of travel of the climber. If you increase the reduction to say, 100:1, you may see a climb time of closer to 8 seconds or so.
Maybe I was missing something, but do you know how much the Everybot weighs?
Everybot weighs 110 pounds with the 40 pounds of ballast weight on it.
In case you missed it AndyMark now has the 2024 Everybot Roller Claw Kit available for purchase.
This kit includes everything you need to build the amp scoring roller claw mechanism and add it to your Everybot, FIRST Kitbot, or for integrating into your own design!
What’s the overall height of where the intake sits?
We’re ready to attach the climber but are having some trouble figuring out exactly how to do so. Are there any additional videos, pictures, or assembly instructions other than what’s on https://www.118everybot.org/? Thanks in advance for any help anyone can provide.
Was the Climber portion of the Everybot Manual not sufficient for what you needed?
Could you expand on what exactly you are struggling on?
I’ve watched every video I could find but they are all of the robot being lifted. I would just like to see a video of just the claw going up and down so I could see how the strap moves compared to each other. As I look at the plans I have no idea how it works. Maybe understanding that would help.
Here is a video of the climber in the prototyping phase: https://photos.app.goo.gl/pGNVqwbmEGV4ksdq6. The rachet strap is directly attached to the hook. By rotating the hex shaft you pull in the strap and the hook is pulled down. The rachet strap needs to be redirected around some pvc rollers so that it goes straight down the tube when pulled down.
Here is another view of the rachet drum from 2020 Everybot: https://youtu.be/myB50DQ7bxQ?si=1fczf2M8aPOKUzja&t=17. This one works a bit differently, the 2024 climber starts in it’s highest position but the 2020 climber starts retracted at it’s lowest position. The hex shaft is spun such that it will unwind, the hook will move to the maximum height thanks to the the rope attached to the spring and then you continue to rotate the drum to pull the hook down again. You can pull the climber hook down by rotating the drum either direction on the 2024 robot. (the 2020 one used a rachet and could only be driven in one way)
The diagram in the manual is a bit more conceptual, here is a rough MSpainting of the rachet strap (red), spring (blue) and rope (green) on the Everybot. The 3 bolt at the bottom of image that face the “camera” hold the PVC rollers that the strap goes around. The spring is attached to the bolt with washers at the bottom and the spring is attached to the rope.
Hopefully this in concert with the videos helps, please feel free to ask for additional clarification.
Oh and just found this video from Ethan showing the 2020 climber in more detail: https://youtu.be/wDA8nOZNZl0?si=-Jais5aoRIDvM479
These resources are extremely helpful and just what we needed. Thank you SO much!
