Question to teams with game elements

Hi! We have built our mid cube scoring table and haven’t got the game objects yet. We are wondering how throwing the cube and cone from small distance look like. We dont know if it bounces much. The only thing we had in common was kinda low inflated 2022 object. I discovered that bouncing it off floor to wall makes it stay on platform and throwed into wall then floor, it falls off over front thingy.

If someone could send us video of u throwing the cone and cube from small distance (just near MID corner)

We want to prototype it better so physics of objects are important.

Thanks in advance!

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check out the videos in this thread Spectrum 3847 | Build Blog 2023 - #13 by AllenGregoryIV

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Week 1 - Spectrum 3847 This video has shooting a cube with their 2022 bot.

Were you trying to test the properties of the game piece itself, or of the scoring platform/shelf? If the former, thats the wrong game piece, so im not sure what the benefits of that test would be.

The OP is in Poland. Their kit of parts is probably still in transit to them.

We tested tossing our cube, by hand, onto a simulated top platform. I posted some results in this thread. Hope this helps.

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I figured it’d be something like that, but didn’t check. Thats on me. Thanks for the correction

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Thank you all for the help guys. Yes our kit is in transport, actually we will have a friend in US to take it and he’ll send us the most important things in some package, because the duty is not profitable for now. I think we’ll stay with our concept. Also I thought that the nodes will be smaller, but after building it they feel large enough for some interesting concepts.

You probably already know that the materials used to make the node platform may affect how cube bounces.

We found if the cube lands on a corner, it bounces much further than when it lands on a flat side.

It bounces less when slightly deflated but one cannot depend on finding deflated cubes on the field. Deflation may also affect the launching of the cubes.

I am hoping to experiment more once the full field replica is completed. From the results we have, I am guessing we can get an acceptable high success rate (>85%) on the middle row and possibly a moderate success rate (> 50%) on the top row.

That is good to know! I reckon we can do cube on mid row like 95% because it will be just deploying it slowly from like 5cm , and top row we didn’t test, but i think it wouldn’t be that much problem, but we aim for doing quick,reliable lows/mids more than slower/less%acc tops.

I suspect that a lot of the inconsistency was due to the cube being launched by hand. It also seems best if you can make the path an arc so that it just clears the front edge at the top of the arc, minimizing the amount it falls before hitting the platform.

The cone appears pretty “dead”, with very little bounce. I saw a short video of someone “shooting” a cone onto the pole/node but I don’t recall who posted it.

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Yes, i saw the cone vid too. We aim for being like 5cm away from mid node and just releasing it (we’ll have top and bottom rollers instead of sides)

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Yesterday evening, we used the prototype for shooting the 2022 balls with the newly finished Nodes at our STEM Center. We had to use our fastest drill to get it up to the highest level. We also had to add cardboard to pad the hood to get more compression. Later, they added some shelf-liner on the black compression wheels (stiffer than the green ones). We did not test consistency of the shot since the structure is rather flexible and we did not have good (consistent) speed control with the drill but most cubes stayed on the node.

Shooting the cone with this type of shooter did not go well at all since it would tumble. Their method of tossing the cone requires starting from quite high, maybe too high.

We think this may be a quick way to have a simple scoring mechanism that is fed from the single loading station, sacrificing floor pickup ability. We would prefer to use a pair of horizontal rollers on articulated arms since it would probably give a similar shot and could do floor pickup. Hope this helps.

Nice! We aim for something like this prototype

That looks like what we would be aiming for. There will be a fair amount of force pushing the rollers apart when picking up a cone so you may want to add some bracing between the two arms.

The main thing we are fighting is power to rotate it. But we got a clever idea of putting rubber band to hold it to the top, so the motors have to push it down for grabbing the piece and the way up is easier because of the rubber bands.

Yes, i thought about it, but i think that 4inch compliant wheels will do the job, if not maybe something like cabinet air pistons

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