https://youtu.be/4jYB1v5bPFc Reis provides an in-depth overview of the Ri3D Cranberry Alarm Superstructure in Onshape going over their current mechanisms and future plans to come.
View CAD on Onshape: Onshape
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Make sure you hop on for the Ri3D Cranberry Alarm Sunday Recap w/ Q&A Show at 9:00pm eastern at https://youtube.com/firstupdatesnow/live ! Ask questions, check out the awesome progress and get a chance to win a giveaway from AndyMark and The Thrifty Bot !
Here’s a sneak peak at all of the progress: https://youtube.com/shorts/NquFxbft5qM?feature=share
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Ri3D Sunday Recap starting soon! Come see the incredible progress. Ask questions and get a chance to win a giveaway from AndyMark and The Thrifty Bot! https://youtube.com/firstupdatesnow/live
https://youtu.be/FxU_oQGLAe0 Cranberry Alarm Ri3D team provides a full overview, recap and answers questions from the live audience on their current progress in their Day 2 Recap. You got to check out the progress on the Amp, speaker shooter and what’s to come tomorrow in their CAD overview.
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I’ve loved watching the stream, great job! What have been your experiences with shooter compression so far? Your current CAD model shows 5" of compression, which is huge for, so I’d love to hear more about what you’ve tried and how you’ve settled on what you have right now.
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Hey @Andrew_L, glad you’ve been enjoying the stream so far!
As far as the Note compression, the CAD model is up-to-date; 5" of compression is what we’re going with for our final design. With the prototype shooter we made, we intentionally made it very easy to vary the compression distance, as we thought this would potentially have a huge impact on shooting.
We started off with 1" of compression, which worked alright, but we wanted better, so we incrementally increased compression by 1" at a time. Each time we did, the shot got better and better, but there was diminishing returns. The change between 4" and 5" was noticeable, but we decided to stop with that, as it seemed like we were getting closer and closer to actually damaging the Note.
You may be able to compress it more, but it seems like around 5" is likely the sweet spot.
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In your videos the rings looked like they were flying pretty straight. Did you get the feeling that the wobble of the ring after releasing affected the flight of the note? Also, have you tried running the motors on each side of the shooter at slightly different speeds to achieve some spin on the note?
I would agree they were flying pretty straight. I wouldn’t say the wobble really afftecs anything, at the distance and speed that we’ve been shooting. I think if you’re looking to potentially go for longer shots, it may matter, but not at the Subwoofer.
As far as spinning motors at different speeds, it’s not something that we’ve tried, or too worried about, but it’s something we would like to test, just to see, once we get the final robot more assembled!
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Ri3D Cranberry Alarm is live for Monday. You won’t believe the progress they have made! Watch at https://YouTube.com/firstupdatesnow/live
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https://youtu.be/vhKpJP4u4uM Reis from Ri3D Cranberry Alarm demonstrates note manipulation with their Intake 2.0 along with a backstop, AM churro and TTB intake wheels and how well this hand off works into their shooter system.
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https://youtu.be/ET4B-4wwvRU Cory & Reis from Ri3D Cranberry Alarm showcase dropping Notes through a mock Source both on the ground and into the shooter and intake of their Robot in 3 Days Crescendo robot with some interesting results and tips for teams.
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This is a good looking machine!!
Will you be releasing the full CAD? or at least the new intake?
That was exactly what I was looking for, thanks! Notes out of the source don’t go very far. It confirms my fears that teams can really get in each others way here. Might be good to have partners hoping to line up to the source (like the kitbot) go to the 2nd or 3rd position to prevent blocking ground pickups from easily picking up a note.
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I saw this link in the YT stream chat
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First intake pivot testing went… shattering. Motor went the wrong way. The only thing that broke was the max planetary mounting plate. RIP to that mounting hole.
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Thank you for the in-depth response! Would you be able to share what RPMs you find work well for your shots, and from what distances those shots are made from?
We have a box full of MP plates that look like that! A quick solution (other than NOT over shock loading it) is to use all 4 mounting holes.
FYI, the next level solution is to mill a shallow pocket the shape of the mount into the plate, to spread the shock torque load evenly.
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This is something we will try to incorporate into future shooting videos.
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I’m wondering if a full size Neo for the pivot motor is not overkill. Did you consider using the smaller Neo 550?
https://youtu.be/j8k97lN1e6U Reis from Ri3D Cranberry Alarm provide an overview and demo of their floor intake 2.0 utilizing Rev motors, The Thrifty Bot Squish wheels and AndyMark churro including potential issues teams may need to accommodate for when designing their Crescendo robot.
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