WPI ri3d Reveal End-Game

  1. last week

    tabor473

    Jun 7 V5 Beta Tester OYES, WPI

    Here is the reveal for WPI's ri3d. Built all with V5.

    Check out the update videos as well here
    https://www.youtube.com/user/iprotabori/videos

    Here are the specs on the robot.

    2 motor 100 RPM running 4 4" omni
    1 motor 200 RPM intake
    1 motor 100 RPM indexer / flywheel loader
    2 motor 200 RPM 15:1 flywheel on 4" wheels
    2 motor 100 RPM 1:5 6 bar (that is only run at 50 rpm for controllability)

  2. AperatureLabs

    Jun 7 V5 Beta Tester Georgia 30047

    Fantastic as always. That flywheel launcher is a great design to get teams thinking about how they could implement a launcher.

  3. Nice robot :)

    Did you face any difficulties in driving (scoring caps on posts) due to the non-linear nature of the 6-bar?

  4. Carlinh

    Jun 7 MCCC

    How is scoring caps if you only expand vertically in the expansion zone with that kind of arm?

  5. tabor473

    Jun 7 V5 Beta Tester OYES, WPI

    @rxian Nice robot :)

    Did you face any difficulties in driving (scoring caps on posts) due to the non-linear nature of the 6-bar?

    So there was some difficulty. But I didnt have any type of alignment mechanism and didn't want to add one after the 3 days ended. A V to auto align the correct distance would have made it a lot easier.

  6. tabor473

    Jun 7 V5 Beta Tester Answer OYES, WPI

    Here are the specs on the robot.

    2 motor 100 RPM running 4 4" omni
    1 motor 200 RPM intake
    1 motor 100 RPM indexer / flywheel loader
    2 motor 200 RPM 15:1 flywheel on 4" wheels
    2 motor 100 RPM 1:5 6 bar (that is only run at 50 rpm for controllability)

  7. sazrocks

    Jun 7 Arizona 2114V

    @tabor473 2 motor 200 RPM 15:1 flywheel on 4" wheels

    Is there a reason you chose this ratio rather than 600RPM 5:1?

  8. Gear Geeks

    Jun 7 Event Partner, V5 Beta Tester Virginia, USA 8044

    Probably only because the 600 RPM motor inserts are not available yet.

  9. This seems like a pretty good indicator of the power of the V5 motors. You can't have both a flywheel and arm of that speed and power without sacrificing drive motors, but with V5 you're fine.

  10. dannybedro

    Jun 7 Los Angeles, California 448X
    Edited last week by dannybedro

    Why did you guys only choose to have 2 motors on the base considering how VEXU is now allowed to have unlimited amount of V5 motors?

  11. tabor473

    Jun 7 V5 Beta Tester OYES, WPI

    @dannybedro Why did you guys only choose to have 2 motors on the base considering how VEXU is now allowed to have unlimited amount of V5 motors?

    It was designed to be loosely HS legal. Also I only had 8 motors total. Each beta tester got 4 and I borrowed another testers set.

  12. dannybedro

    Jun 7 Los Angeles, California 448X

    Oh ok that makes sense.
    I love the flywheel accuracy and range!
    Great Bot!

  13. bid.p

    Jun 7 California

    OYES

  14. NightsRosario

    Jun 8 Reisterstown/Catonsville, MD 3922A

    End Game
    Endgame
    End-Game

    What's next, End|Game? Or rather End_Game? :)

  15. Aurgia

    Jun 8 Georgia 1961
    Edited last week by Aurgia

    A nice robot as always. I am also considering a six-bar for my cap lift mechanism, does the horizontal expansion of the lift cause you to leave the expansion zone?

  16. tabor473

    Jun 8 V5 Beta Tester OYES, WPI

    @Aurgia A nice robot as always. I am also considering a six-bar for my cap lift mechanism, does the horizontal expansion of the lift cause you to leave the expansion zone?

    Uhhhh, I didnt pay that close attention to it. With this robot being 23" long it would have been an issue definitely. If the 6 bar started farther towards the ball intake it would have mattered less.

  17. Is there a reason why you wouldn't use a slip gear puncher isn't it more accurate?

  18. tabor473

    Jun 8 V5 Beta Tester OYES, WPI

    @Reverse6 Is there a reason why you wouldn't use a slip gear puncher isn't it more accurate?

    Can't aim it different distances. I did a full functioning puncher prototype as part of the ri3d, you can find it in the progress videos.

  19. tabor473

    Jun 8 V5 Beta Tester OYES, WPI

    Also just wanted to mention it was programmed in PROS for V5. Which has been my goto programming environment with V5. I would reveal the code but I was using an old version of the PROS API and it would be confusing.

  20. lacsap

    Jun 8 Event Partner, V5 Beta Tester Massachusetts 9791[a-z]

    @tabor473 Can't aim it different distances. I did a full functioning puncher prototype as part of the ri3d, you can find it in the progress videos.

    well you could - it would be a different technique that would be more complicated than changing flywheel speed. Fixed mechanisms would require repositioning for shot and variable incline would be needed if you wanted to stay in fixed location.

    Remember - robots in three days has short development cycle.

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