Just to check, does the falling mass directly impact the projectile? If so that's not sufficient to meet the "air" requirements of the event. The energy from the falling mass needs to be converted into air pressure or movement before launching the projectile.Whiteheat073 wrote:I feel so basic with my release mechanism... A string that got pulled and triggered a lever that swung a PVC pipe with a pin on it to pop a balloon to release the falling mass and launch the projectile
Release Mechanism
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Re: Release Mechanism
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Re: Release Mechanism
Wait what? Seems....efficient (also what chalker said)Whiteheat073 wrote:I feel so basic with my release mechanism... A string that got pulled and triggered a lever that swung a PVC pipe with a pin on it to pop a balloon to release the falling mass and launch the projectile
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Re: Release Mechanism
It does not impact the projectile directly. And it also is converted to movement before launch.chalker wrote:Just to check, does the falling mass directly impact the projectile? If so that's not sufficient to meet the "air" requirements of the event. The energy from the falling mass needs to be converted into air pressure or movement before launching the projectile.Whiteheat073 wrote:I feel so basic with my release mechanism... A string that got pulled and triggered a lever that swung a PVC pipe with a pin on it to pop a balloon to release the falling mass and launch the projectile
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Re: Release Mechanism
And it was quite efficientwindu34 wrote:Wait what? Seems....efficient (also what chalker said)Whiteheat073 wrote:I feel so basic with my release mechanism... A string that got pulled and triggered a lever that swung a PVC pipe with a pin on it to pop a balloon to release the falling mass and launch the projectile
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Re: Release Mechanism
I love the extrabox thinking with the balloon/trebuchet idea, even though it seems to clearly violate the "spirit" of the rules ... But, for a balloon to be popped, wouldn't it necessarily have to be at a higher-than-ambient pressure before being triggered? Thus violating the literal rules?
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Re: Release Mechanism
Just a quick update: After failing to reach the far distances with my original release mechanism, I changed it to Phy1cs's design which gave me the extra height I had lost. The mechanism seems consistent and has a low-ish coefficient of friction if pulled properly
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Re: Release Mechanism
Instead of asking people and doing things the same way, try something else and test it.VansBuilders wrote:Hi, I am new to AirTrajctort Division B. Can someone post the typical dimension for the PVC pipe in the Release Mechanism. I am thinking of 6" inch pipe. Is that reasonable?
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Re: Release Mechanism
When using a 2 liter soda bottle as a launch mechanism, at the competition, are you allowed to blow into the bottle for it to return to ambient air pressure? Thanks.
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Re: Release Mechanism
Yes - considered part of the recalibrating periodVansBuilders wrote:When using a 2 liter soda bottle as a launch mechanism, at the competition, are you allowed to blow into the bottle for it to return to ambient air pressure? Thanks.
Question to chalker: Seeing as how this gets asked SO often, why is there no clause in the rules to prevent the ridiculous numbers of people from having trouble with this?
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Re: Release Mechanism
Not chalker, but I'll point out some things: It's being asked after the rules have been printed. Though the writers of rules try to make them as clear as possible, there can be situations/question they don't think of while writing. And I think they try to not write rules (or post official FAQs/clarifications) about specific approaches to devices (unless its prohibiting them).windu34 wrote:Yes - considered part of the recalibrating periodVansBuilders wrote:When using a 2 liter soda bottle as a launch mechanism, at the competition, are you allowed to blow into the bottle for it to return to ambient air pressure? Thanks.
Question to chalker: Seeing as how this gets asked SO often, why is there no clause in the rules to prevent the ridiculous numbers of people from having trouble with this?
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