My team is using a double catapult and one of them is not shooting as far as the other one and we already used a shaft to aline it

[Screenshot_20220410-201320] Looks like your fulcrum or pivot points on your catapult don’t line up properly. Also avoid using pegs for pivots on high stress applications like the catapult pivot. I hope that helps. Cheers

can you send pictures? there can be many causes, and pictures will help find those

This is a perfect situation to use the engineering process. Is it always the same side that is shooting not as far? Test a number of times to prove this. The side that is shooting “shorter”, does the balls always land in the same position? If not, why is that? The side that is shooting longer, d…

The most important thing is: Is it consistent? Even if it’s consistently wrong, at least it’s not going weird all over the place and you have no idea what changes between shots. Try this: Set your catapult up perfectly. Line it up where you want it to shoot from and where you would expect it to ma…

Did it shoot even before and now it doesn’t? Is it built symmetrically? Are the bands put on evenly? Is any component broken? (Look closely)

@bash371 got stuck with the standard “engineering response” on their question. [image] bash371: My team is using a double catapult and one of them is not shooting as far as the other one and we already used a shaft to aline it Which as a question is pretty good. States a symptom and a possi…

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[image] Catapult VEX IQ consistency VIQC Pitching In (2021-2022 Game) Hi everyone, I have finished building my catapult, but it is very inconsistent. (My catapult is based on Ben Lipper’s Design). Any help? Shyam [image] Vex pins not able to withst…

It may be the photo perspective or my eyesight but the catapults don’t look even. I dropped three parallel lines in the photo below. Could there be a mismatched hole count on one side? [image]

Seems like the outside mark is the pivot and the inner mark is the choo choo linkage, these wouldn’t line up. Difficult for me to tell in these pictures.

I agree. It’s difficult to know for sure from the photos. But some of the other photos show a green 1x beam coming from the choo choo into the catapult arm. So I think the central part with the metal axle is the pivot point of the catapult arm. And if that is the case, the outer pivot points don…

Catapult problems

VEX IQ Robotics Competition Discussion VIQC Pitching In (2021-2022 Game)

SCFarrell April 7, 2022, 5:33pm 8

All of these threads discuss possible solutions to your breakage problem. Give them a good review.