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#1
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
Allen,
Really cool bot, love what your team is doing with the open build/blog. Seems like a great learning experience for your team. Whats the process for scoring the gear once in the gear holder? Great work as always, -Mike |
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#2
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
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#3
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
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I'd assume we will be iterating on the drop off portion all season to make it as fast as possible without compromising it's pickup speed and ability to securely hold the gear during high speed collisions. |
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#4
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
What is your shooter drum made out of?
This is awesome, just wish my computer would load the step file so I could get into the model more. |
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#5
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
The current version is 45A high-temperature silicone rubber tubing from McMaster, I believe 1" ID 1.25" OD, stretched around 1.25" aluminum tubing. We hope to Smith to some white 35A though to keep with our colour scheme (and maybe get some better grip on the ball).
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
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#7
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
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Granted, we did used solid 4" conveyor wheels [I know them as fairline (Fairlane?) Wheels, but maybe Allen can reply with their proper name] to shoot in 2016, and those loved to expand so maybe we're just used to shooter wheel expansion. Last edited by fresh_prince : 01-02-2017 at 15:19. |
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
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#9
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
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#10
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
How many balls can you guys hold? Doesn't look like the traditional hopper to me, are you planning on intaking only?
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#11
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
Our current estimates sit around 50 balls or so. We will have a hopper, the lexan sheets that it is made of have yet to be fully modeled though. There will be one panel on either side and an angled panel out over the fuel intake that will spring out when the intake is down, but be forced back into frame when the intake is pulled back up.
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#12
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
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So all in all, not surprising your tube wanted to expand more than Spectrum's. Are you guys going for a longer shot to need that much more surface speed? *Yes centrifugal. Pedants are welcome to spend 15 minutes drawing a FBD with a tangential velocity, required change in velocity to create a circular path, implied acceleration, unbalanced force to create that acceleration, etc, etc. I'm going to pretend it's a real force and get on with my life. Last edited by Kevin Sevcik : 01-02-2017 at 16:19. |
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
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#14
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
Nice job 3847! What are the servo motors on the front/back of the shooter for?
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#15
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Re: pic: Spectrum 3847 - 2017 CAD Model: Gamma Ray
Thanks! We'll only be using one of the two sets of three, but they're intended to be lane blockers. If we line up to the boiler and one of our side streams isn't on target, we want to be able to disable that stream instead of realigning our entire robot. We have one in the middle so that we can theoretically make a shot while our side is lined up with either the driver station or the front wall of the field.
Last edited by fresh_prince : 01-02-2017 at 17:25. |
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