anybody got a non-plastic using passive design?

  1. 5 weeks ago

    briancole

    Jan 14 Utah 4270C

    Ok, so I have to build a passive intake for our bot and I have to use no plexiglas, because we don't have any on us. Does anyone have any designs for me? We are getting desperate.

  2. Cmills1352

    Jan 14 Hazel Green, Alabama 8685C

    Pleaseeee done to a passive. The best route for a mobile goal lift is 1 high torque motor lifting a forklift with a 1/10 gear ratio (82:12 attached to 36:12 gear ratio)

  3. Cmills1352

    Jan 14 Hazel Green, Alabama 8685C

    Other picture didnt send^^^

    Good luck!!!!

  4. Just use c channel with a bunch of zip ties. I've seen this idea work best when the intake is shaped like a c from the overhead view.

  5. 20rzaugg

    Jan 14 Syracuse, Utah 4270C

    I believe he failed to specify that he is referring to a cone intake, not mogo intake

  6. @Cmills1352 Pleaseeee done to a passive. The best route for a mobile goal lift is 1 high torque motor lifting a forklift with a 1/10 gear ratio (82:12 attached to 36:12 gear ratio)

    I would strongly recommend using a four bar instead of this for a mogo intake

  7. 20rzaugg

    Jan 14 Syracuse, Utah 4270C

    Yeah, we know. And by the way this is @briancole hijacking 20rzaugg's account. Because I care.

  8. NightsRosario

    Jan 14 Reisterstown/Catonsville, MD 3922A

    I prototyped one. I just took a regular claw, put zip-ties on it, put one set of standoffs on green joints, and poof. Wasn't too hard

  9. blatwell

    Jan 14 Event Partner Indianapolis 621A

    @Cmills1352 Pleaseeee done to a passive. The best route for a mobile goal lift is 1 high torque motor lifting a forklift with a 1/10 gear ratio (82:12 attached to 36:12 gear ratio)

    Why so much gearing? I have teams using 1:7 and planning on switching to 1:5 with 1 motor using a high speed motor on a 4 bar. Middle school team with driving skills of 104 while using only 7 motors total. They are now using 10 motors and should be able to increase that number.

    In a competition last week, they put a mogo with 4 cones on it in the 20 point zone to get the high stack bonus. Not sure why you need a 1:10 gear ratio.

  10. Joseph | 182C

    Jan 14 Franklin, Indiana 182 C
    Edited 5 weeks ago by Joseph | 182C

    @NightsRosario I prototyped one. I just took a regular claw, put zip-ties on it, put one set of standoffs on green joints, and poof. Wasn't too hard

    Here's a vid of something like this that I made awhile back. Like @NightsRosario it's really just a normal claw that I took the motor off of and slapped a rubber band on(I literally used it with a motor for a competition a few days before that).

  11. tabor473

    Jan 14 V5 Beta Tester OYES, WPI

    @briancole Ok, so I have to build a passive intake for our bot and I have to use no plexiglas, because we don't have any on us. Does anyone have any designs for me? We are getting desperate.

    It is 4$ to buy a sheet of polycarb

    https://www.robosource.net/plastic-sheets/16-polycarbonate-sheet-12-24-00625.html

    With robosource it has gotten really cheap and easy to get your hands on.

  12. Easton

    Jan 14 Loganville, GA, USA 1958 A

    @tabor473 It is 4$ to buy a sheet of polycarb

    https://www.robosource.net/plastic-sheets/16-polycarbonate-sheet-12-24-00625.html

    With robosource it has gotten really cheap and easy to get your hands on.

    I recently ordered some polycarb from robosource, but it hasn't come in yet. But I noticed it's only 1/16" thick, do you know if it breaks and bends super easy? That's the only thing I'm worried about.

  13. Ethan W.

    Jan 14 99402D

    @Easton the offical game manual specifies that polycarbonate by .070" which is a 16 of an inch.

    f. Non shattering plastic from the following list; polycarbonate, acetel monopolymer (Delrin),
    acetal copolymer (Acetron GP), POM (acetal), ABS, PEEK, PET, HDPE, LDPE, Nylon (all
    grades), Polypropylene, FEP; as cut from a single 12" x 24" sheet up to 0.070" thick.

  14. Neil_6121C

    Jan 14 Pennsylvania 6121C

    @Easton I recently ordered some polycarb from robosource, but it hasn't come in yet. But I noticed it's only 1/16" thick, do you know if it breaks and bends super easy? That's the only thing I'm worried about.

    Nope, it shouldn’t bend/break easily. It will be easy to bend if you heat it though

  15. Easton

    Jan 14 Loganville, GA, USA 1958 A
    Edited 5 weeks ago by Easton

    @Neil_6121C Nope, it shouldn’t bend/break easily. It will be easy to bend if you heat it though

    Ok that's good. I was going to make a passive intake once it came in. But @briancole I'm pretty sure team 109A shared a really good passive intake without plastic on their IG.

  16. SmurfLord

    Jan 15 Cumming Ga 2831A

    anyone know how anti-chamber made his passive intake?

  17. SmurfLord

    Jan 15 Cumming Ga 2831A

    @Easton Ok that's good. I was going to make a passive intake once it came in. But @briancole I'm pretty sure team 109A shared a really good passive intake without plastic on their IG.

    do you have a link?

  18. Kevin Boenisch

    Jan 15 Oakville, Ontario, Canada WPI, Former 2188A

    @Easton I recently ordered some polycarb from robosource, but it hasn't come in yet. But I noticed it's only 1/16" thick, do you know if it breaks and bends super easy? That's the only thing I'm worried about.

    The vast majority of orders we ship arrive within 2 days, as we mostly use USPS Priority Mail, but if you haven't gotten yours yet please email sales@robosource.net.

    As others have said, 1/16" is the thickest that is competition legal, and is surprisingly strong.

  19. Dokkaebi

    Jan 15 Deal with it I like chocolate

    @Easton I recently ordered some polycarb from robosource, but it hasn't come in yet. But I noticed it's only 1/16" thick, do you know if it breaks and bends super easy? That's the only thing I'm worried about.

    I mean come on, it's polycarbonate. It is super strong.

  20. Aponthis

    Jan 15 Gilbert, Arizona 127X

    You could use the type of zip tie intake my robot has in this video (which I post because it is super visible).

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