1. 4 months ago

    NyQuil

    Jul 17 Ashburn, VA 80508X

    What lifts are your teams running?

  2. Blatherskite

    Jul 17 Austin TX 2158R

    My team is running a 4 bar or a 6 bar. we tried a DR4B but we need to make some changes to make it optimal for an all in one bot.

  3. JamsG

    Jul 17 a place in southern california 310A

    We're working on a DR4B

  4. briancole

    Jul 17 Utah 4270C
    Edited 4 months ago by briancole

    We’ve prototyped a six bar and are currently prototyping a dr4b and a cascade. We’ll go with whichever we find to be best. Considering our current data the Dr4b will probably be the best

  5. Leeoon

    Jul 17 Derry New Hampshire 241E

    We're doing a chainbar, because while we still want to put caps on posts, our priority is the flags. And honestly, anything more is overkill.

  6. The Electrobotz

    Jul 17 Virginia 20181X

    @Leeoon We're doing a chainbar, because while we still want to put caps on posts, our priority is the flags. And honestly, anything more is overkill.

    We're running an elevator lift.

  7. NyQuil

    Jul 17 Ashburn, VA 80508X

    @briancole We’ve prototyped a six bar and are currently prototyping a dr4b and a cascade. We’ll go with whichever we find to be best. Consider destiny our current data the Dr4b will probably be the best

    Personally I feel like a DR4B is kind of overkill what made you lean toward it?

  8. briancole

    Jul 17 Utah 4270C

    It’s a linear n bar lift. Furthermore we couldn’t get the six bar to reach above 34” even with rebuilding it three or four times

  9. NightsRosario

    Jul 17 Reisterstown/Catonsville, MD 3922A

    @briancole It’s a linear n bar lift. Furthermore we couldn’t get the six bar to reach above 34” even with rebuilding it three or four times

    h m m m m m. That seems more like a problem with your setup. 6-bar should easily be able to reach 34". I prototyped a 4-bar that reached that height. Your spacing must not be ideal.

    As for my general comments, use whatever works. keep in mind that you may have to make a dedicated post aligner if you are using a non-linear lift which isn't hard but it's something you have to look out for

  10. Deleted 4 months ago by briancole
  11. The Electrobotz

    Jul 17 Virginia 20181X

    @briancole Yeah the war we have our shooter setup the six bar wouldn’t be able to go all the way down to the ground so we lost a lot of height. We debated making major mods to make it do so but decided a linear lift would probably be better anyways

    I think linear lifts are great because they often are very space efficient. At least, that's how we feel about them.

  12. NyQuil

    Jul 17 Ashburn, VA 80508X

    @NightsRosario h m m m m m. That seems more like a problem with your setup. 6-bar should easily be able to reach 34". I prototyped a 4-bar that reached that height. Your spacing must not be ideal.

    As for my general comments, use whatever works. keep in mind that you may have to make a dedicated post aligner if you are using a non-linear lift which isn't hard but it's something you have to look out for

    How did you get a 4-bar to go that high?

  13. NightsRosario

    Jul 17 Reisterstown/Catonsville, MD 3922A

    @NyQuil How did you get a 4-bar to go that high?

    It was offset so it went completely vertical. It worked well enough, but I personally wouldn't recommend it because of how little wiggle room I got when fully vertical

  14. Droideka

    Jul 17 Wenatchee, WA, United States

    My team is currently working on the [mini] DR4B all for a cap. I [personally] wouldn't go through all the trouble on building a DR4B to lift a cap. I recommend just a regular clawbot claw that could reach over 20" in height and a mechanism that would flip the cap while attached to the clawbot lift. The cap is rather light.

  15. Edited 4 months ago by 675C Robotics

    We are running a DR4B mainly because it is a linear lift. Also, with a DR4B, you have enough height to pick a cap up off of a high post, raise it up, flip it, and put it back onto the high post. With other lifts like a 4 bar, 6 bar, or chain bars, it is very hard to just reach the high post

  16. Dromeda

    Jul 18 A place Who needs a number right?

    Personally, making a well spaced and efficient 6b should be able to do low and high posts fine. Now, this is assuming you have an ideal amount of space and a very long 6b. For teams that have cramped space to work with a lift, I recommend to stick for low posts only and devise a mech to knock off high pole caps that are not your color.

  17. NightsRosario

    Jul 18 Reisterstown/Catonsville, MD 3922A

    @Dromeda Personally, making a well spaced and efficient 6b should be able to do low and high posts fine. Now, this is assuming you have an ideal amount of space and a very long 6b. For teams that have cramped space to work with a lift, I recommend to stick for low posts only and devise a mech to knock off high pole caps that are not your color.

    If you have a cramped up amount of space then you either didn't plan ahead or made some bad decisions in CAD.

  18. callen

    Jul 18 Braintree, MA, USA

    I don't know. It seems like in this game there is reason to want to potentially extend below the bottom of the wheels, too. To keep a robot legal, it's top would have to come down as well. Let's say you want to extend down 2" with bars on multiple sides. Now your maximum fixed height for parts is 16". So in such a case, you want to keep your tower's top below 16" above the floor. Let's say 15.5" to leave a little room for deviations, wires, whatever. That might make space quite cramped to begin with for a 6b trying to place caps on high poles, and that isn't about planning poorly nor about doing things poorly in CAD.

  19. NightsRosario

    Jul 18 Reisterstown/Catonsville, MD 3922A

    @callen I don't know. It seems like in this game there is reason to want to potentially extend below the bottom of the wheels, too. To keep a robot legal, it's top would have to come down as well. Let's say you want to extend down 2" with bars on multiple sides. Now your maximum fixed height for parts is 16". So in such a case, you want to keep your tower's top below 16" above the floor. Let's say 15.5" to leave a little room for deviations, wires, whatever. That might make space quite cramped to begin with for a 6b trying to place caps on high poles, and that isn't about planning poorly nor about doing things poorly in CAD.

    That again comes down to your design and how you plan for that. You could easily work around that if you come up with a different method of extending or another way

  20. @NightsRosario That again comes down to your design and how you plan for that. You could easily work around that if you come up with a different method of extending or another way

    if u have u have smol brain

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