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Unread 05-12-2018, 12:31 AM
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2363 builds a drivetrain - an instructional video series

Last fall our students came up with the idea of producing a series of instructional videos. These would teach our incoming rookies the skills they would need to be productive robot builders. We never got past shooting footage for an intro before it became clear that we just didn't have the time to do the job right while preparing for our two fall offseason competitions. So the project got shelved.

Now that competition season is over, we're dusting off that idea once more. We've recently fielded questions about how we build our drivetrain, both at competitions and online. That's true especially since the adoption of the laser cut gearbox we developed last summer, which won two engineering awards, by a couple of our friend teams. In the past, we've presented on our drive train development program at local FRC workshops and summits. While it's nice to share with the handful of local teams who attend those events, the widespread viewing of our gripper prototyping video showed us that we can leverage Youtube videos to reach a much wider audience.

When we recruit new students, one of our favorite lines is, "Nobody who joins the team knows how to build a robot. We'll teach you." As an established team, we go to competitions and see younger teams, some of whom don't have engineering mentors, struggling to learn lessons we have learned the hard way. We see our role in growing FRC as helping those struggling teams become better more quickly, so they remain inspired, and don't fold. We see this video series, and the ones which will follow, as a tool which can help educate inexperienced students on our own team as well as other teams across FRC.

So, keep your eyeballs glued to the Triple Helix Youtube channel. We've mapped out a shooting schedule for the videos in the West Coast drivetrain series, and footage for the first three have already been shot. We expect to have the entire series posted within the next couple months. Then we'll move on to another topic specifically aimed at getting rookie teams fielding a competitive bot in their first FRC season.
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Last edited by ToddF : 05-12-2018 at 12:35 AM.
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Unread 05-12-2018, 07:33 PM
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Re: 2363 builds a drivetrain - an instructional video series

This great, make sure to add all the videos to a playlist so it's easy to send the links to teams.
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Unread 05-12-2018, 08:09 PM
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Re: 2363 builds a drivetrain - an instructional video series

This is great! Just what many teams like mine need to get started. Our mechanical team will be definitely watching these.
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Unread 05-12-2018, 08:40 PM
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Re: 2363 builds a drivetrain - an instructional video series

Love it!
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Unread 05-12-2018, 08:49 PM
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Re: 2363 builds a drivetrain - an instructional video series

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Originally Posted by AllenGregoryIV View Post
This great, make sure to add all the videos to a playlist so it's easy to send the links to teams.
Great suggestion, thanks!
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Unread 05-14-2018, 08:47 AM
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Re: 2363 builds a drivetrain - an instructional video series

Forum moderators, is it possible to allow me to edit the first post in this thread? I'd like to include an episode guide, and update it as episodes are released.
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Unread 05-25-2018, 02:11 PM
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AKA: Todd Ferrante
FRC #2363 (Triple Helix)
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Re: 2363 builds a drivetrain - an instructional video series

Guide to episodes posted so far:

episode 1 - drive train design introduction
https://www.youtube.com/watch?v=HQ-pMDizdk0&

episode 2 - measure twice, cut once
https://www.youtube.com/watch?v=8E_chWQQ_6I

episode 3 - bearing hole with the milling machine
https://www.youtube.com/watch?v=TRwoZ1l3dwI

episode 4 - axle clearance holes with the drill press
https://www.youtube.com/watch?v=FAwxH1l3J7I
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Unread 06-03-2018, 10:59 AM
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Re: 2363 builds a drivetrain - an instructional video series

episode 5 - hand drilling the attachment holes
https://www.youtube.com/watch?v=m5xTDx5vWdA
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Unread 06-05-2018, 07:22 AM
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Re: 2363 builds a drivetrain - an instructional video series

episode 6 - laser cutting gearbox plates
https://www.youtube.com/watch?v=M1raRKaN2dw&
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Unread 06-05-2018, 08:15 AM
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Re: 2363 builds a drivetrain - an instructional video series

Quote:
Originally Posted by ToddF View Post
episode 6 - laser cutting gearbox plates
https://www.youtube.com/watch?v=M1raRKaN2dw&
Are these the award winning gearbox plates that I've heard so much about?
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Unread 06-05-2018, 03:23 PM
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Re: 2363 builds a drivetrain - an instructional video series

Quote:
Originally Posted by marshall View Post
Are these the award winning gearbox plates that I've heard so much about?
Yes! In summer and fall 2017, Triple Helix collaborated with two teams on the design, implementation, and testing of a set of drivetrain gearboxes, with Triple Helix leading the design effort. Soon after the 2018 kickoff, we cut copies of these gearboxes for all 3 of our teams using our CNC laser cutter which we also designed and built last year. Both of these teams won technical awards in part for the design work that Triple Helix was involved in. Team 1610 Blackwater Robotics won the Excellence in Engineering Award in Portsmouth and ILITE Team 1885 won the Excellence in Engineering Award in Oxon Hill, MD. We are so glad this happened-- these two awards for our friends also represent a engineering victory for us!
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Unread 06-06-2018, 09:41 AM
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Re: 2363 builds a drivetrain - an instructional video series

Just for reference, the summer 2017 version of the gearbox plates work with 4" wheels. The 2018 competition bot (Genome Kappa) version of the plates work with 5" wheels. STEP files of both versions can be downloaded from GrabCAD.
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Unread 06-30-2018, 03:26 PM
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AKA: Todd Ferrante
FRC #2363 (Triple Helix)
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Join Date: Apr 2011
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Location: Newport News, VA
Posts: 737
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Re: 2363 builds a drivetrain - an instructional video series

episode 7 - Snap ring grooves on hex axles
https://www.youtube.com/watch?v=xsPXy2g3yfU
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Unread 08-10-2018, 03:50 PM
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FRC #2363 (Triple Helix)
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Re: 2363 builds a drivetrain - an instructional video series

episode 8 - Snap ring grooves on hex axles, part 2
https://youtu.be/cN3ScNjneRY
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Unread 09-29-2018, 02:05 PM
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Re: 2363 builds a drivetrain - an instructional video series

episode 9 - gearbox spacers using drill jig
https://www.youtube.com/watch?v=1QsUttgEbJY&
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