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pic: Team 3266 Sheet Metal Drivetrain
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Re: pic: Team 3266 Sheet Metal Drivetrain
This looks really cool.
Hope to see pics once it is built |
Re: pic: Team 3266 Sheet Metal Drivetrain
Looks cool! How are the pulleys attached to the colsons and how thick is the sheet metal?
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Re: pic: Team 3266 Sheet Metal Drivetrain
My guess is that the pulleys are attached to the Colsons with this
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Re: pic: Team 3266 Sheet Metal Drivetrain
Looks nice.
How are you handling the Colsons on dead axles? What size Colsons are you using? What pulleys are you using? |
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My guess is this |
Re: pic: Team 3266 Sheet Metal Drivetrain
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You can see here the full wheel assembly with the hub, wheel and 3/8" flanged bearings, and on the right is the pulley hub that is machined from pulley stock. ![]() |
Re: pic: Team 3266 Sheet Metal Drivetrain
Nice, I like that custom pulley design. Slick. No flanges?
Re: pulley stock, where do you buy yours? I bought some recently, and was dismayed at how expensive it is. |
Re: pic: Team 3266 Sheet Metal Drivetrain
Looks great!
One question for you though - how do you plan to mount bumpers? I have been practicing with sheet metal drive bases (my team plans to use one on a competition robot for the first time this year :D ) and I like the idea of having the flanges of the outermost panels bent outward but I'm not entirely sure how to mount bumpers securely. |
Re: pic: Team 3266 Sheet Metal Drivetrain
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Here is a front view of the bumper frame and hex mount: ![]() |
Re: pic: Team 3266 Sheet Metal Drivetrain
You loss a bunch of strength when you don't have the belly pan under the CIMs. try to fit the CIMs so the belly pan isn't cut out. Anyways, great job, looks like a good start to a great bot.
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Re: pic: Team 3266 Sheet Metal Drivetrain
I'm sorry idk if you already answered this or not i didnt see it if you did. I was wondering what the thickness of the metal was and is all the metal machined or did you get any of it assembled for you? looks awesome to see the finish product!
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Re: pic: Team 3266 Sheet Metal Drivetrain
All the metal is .100" aluminum and is cut out using a laserjet and then bent on an automatic break, this is done by one of our machining sponsors. Then the students rivet the frame together.
As far as the overall design I owe a lot to the guys from 2168 and 228. Without their generosity and CAD files I wouldn't be anywhere near a production ready sheet metal drivetrain. Also the design for the pulley hubs was originally from 2168's 2013 robot and the weight reduction is heavily influenced from their 2011 base. What can I say I'm a huge fan! |
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