The motor limit will be the downfall of this because 2 motor drive 2 motor lift it’s hard to get a tall one motor rd4b 1 motor mogo 1 motor 4 bar 1 motor claw can’t really use passive.
Can’t really use passive?
Challenge accepted.
That’s exactly what I thought!
i built some practice risers based on the given dimensions.
you can use passive but you can’t really use passive from the top I’m probably going to end up using pasive
in the past 2 days I’ve made a 27 inch tall rd4b with two motors
I just got the game elements in and the 2 motor and 1 to 5 gear ratio on a rd4b wasn’t able to lift it without rubber bands and when I added rubber bands it got really wonky i was using a passive claw that picked it up from the middle i don’t know if rd4b is going to be the work horse we thought it was going to be.
I built a DR4B with a 25:1 gear ratio and it lifted fine, albeit incredibly slow. I am planning on switching to something more like 15:1, and seeing how that holds up.
I did that too! How to Build a placeholder Riser before the kits come in
Since near-perfect or perfect scores were possible in the past two years, this granularity of scoring, along with LOTS of big elements (27) that will likely need to be manipulated one at a time, is a welcome change.
A perfect score of 170 was achieved and video documented for Squared Away (not in an actual competition, but still).
But this year’s perfect score of 321 does not seem achievable. All 27 risers would need to be manipulated, and 18 of them stacked, and roughly half of them carried fully across the field. To be able to correctly place one every 2.2 seconds seems impossible.
Which is good, because there will always be room for improvement.
A reachable perfect score is a bad thing for a bunch of reasons.
That was my first thought too!
the VRC and IQ games look very similar this year, ITZ Meta in IQ will definitely succeed
Yes, that’s the video that I saw too as proof of a perfect score. Pretty insane! Also really nice that the two robots had very different designs. That scoop is elegant as heck.
I’ve only watched this like 70 times.
My team is going to build the four bar and forklift design
Super, post pictures, it’s early in the season and your design could become the meta 
I think it should be verrry easy to make a dr4b with one motor using rubber banding.
in fact i’ve tried it. I didn’t make any pseudoparts to lift though. ill get back to you guys on how it did.
rubber banding is completely necesssary.
i don’t think people understand what i meant by a itz bot. Yes, part of the itz robot is the stacking, but it can also store the stack. The stack is on the robot, not on the field. I think most of the difficulty will come from storing the stack in the robot.
Oh wow, that is an example robot I built many, many moons ago. The gears etc. are actually the old maroon plastic from the early kits, that pic has been Photoshopped to make the gears look blue.
I remember it well though, the geometry was such that the forks slide up as the arm raises to give it extra maximum height and the ground level minimum height without wasting a motor.
me and a couple friends (we are in VRC, not IQ) Built a DR6B with iq parts in about 1 hour, and it was perfectly in line, level, and super sturdy. My point is, it should not be too hard to make a double reverse work in this game.
ye, it took me like 2 hours because im more of a coding person than a mechanical person. for example, I’ve been working on spline following for a while, and I think I’m very close to being done.