Cones + Suction cups?

Technical Technical Discussion
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Inspired by Ri3D Redux and their suction cup prototype, we decided to order some parts in ourselves and put our own spin on it. Here are our results:

Seen in the video are the following parts:

Overall we’re pretty happy with the results we’re seeing (we weren’t able to make the cone fall off despite some rather aggressive shaking), and may choose to develop it further depending on how the rest of our prototyping goes.

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looks really cool, id love to see how you develop it if you go down this route. I am curios how well it holds up to side to side shaking as getting hit is the most likely thing to knock it out.

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Thanks sharing! Our team is also curious about a suction cup route. For your fitting, on AutomationDirect it says the suction cup ships with BSPP threading (as opposed to NPT).

Are these threads close enough that they work or do the cups actually ship with NPT fittings? Or are they close enough that’ll work well enough for this purpose?

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I had the same worry before I ordered the parts about the suction cups being BSPP. But the NPT seems to engage just fine with the BSPP thread on the suction cup. Just had to throw a little teflon tape on, and we got a pretty nice seal (zero noticable leaks).

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BSPP and NPT tend to be remarkably close at small sizes, you can almost always get away with it under 5 or so complete threads.

Especially with brass fittings, I have some mismatched NPT and BSPP that handle 100+ PSI easily.

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If you want to go the extra little bit, you can just use something like this: https://www.amazon.com/gp/product/B09DKJ78V3/.

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I mean, this years game pretty much eliminates any defense at all, as you get penalized for touching someone else in their “community”. Bumping shouldn’t be too much of a problem this year, unless its done by you alliance mates.

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Our concern (and I’m guessing others too), is the open field between the loading zone and the community. We’re assuming there will be a good bit of defense knocking us around as we make that trip across the field; And we really don’t want to be known for dropping our game piece if another team can manage to run into us hard enough.

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There will be defense in this game. Count on it.
We’ll see hard hits we haven’t seen since 2017 or 2014

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My money is on defense.

Besides never underestimate how hard your driver can hit things, this includes field elements in the community, which could be a bigger shock load than actual robot contact.

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There is going be some teams wrecking things on the barrier.

The suction lift looks promising if you can figure how to line up well. We usually have some sort of springy, swiveling thing to let it move into the correct position, but there are several ways.

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Absolutely, with the low visibility of that field element (similar to the 2017 dividers) there are going to be a lot of bent frames and shattered end effectors. Bloodbath.

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Will be interesting to see how many teams use suction, from what I have seen It doesn’t stick well if the cone has any damage.

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