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Chipotle always promotes free toppings on their burritos like corn salsa, cilantro rice and so on. However many customers are taking advantage of it by ordering a burrito with double meat, then loading up on so many toppings it becomes impossible to wrap with a single tortilla, then they...

2,055,536 次观看 • 5 个月前 •via X (Twitter)

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This guy spent several days teaching a tabletop robot arm to roll a burrito and when one could not do it he did not rewrite the controller he printed 2 more and launched a 3-arm setup for about $1,000. He does not rewrite the software, does not wait for a smarter model, does not update the imitation weights, he just prints another arm and connects it to the existing leader-follower through LeRobot, nonstop. And it got more interesting: the hardware of one arm is a DIY kit SO-101 for about $300 to $400 on STS3215 bus servos, coordination between the arms goes through leader-follower teleoperation in Hugging Face LeRobot, and replication goes through a Bambu Lab A1 for $399 that prints a copy in a day. It knows the position of the tortilla by the leader-arm coordinates at the start, knows the handoff moment between the arms by the fold phase, and knows the final rolling from the sequence of demonstrations from teleop sessions. And it even distributes the work between the arms, one does the initial folds, the second holds the tortilla still, the third performs the final rolling, depending on which phase the burrito is currently in. In one 57-second demonstration 3 arms rolled a burrito for the first time without human involvement, and the total stack cost less than $1,000 in hardware versus a UR5 at $25,000 or an industrial burrito machine Solbern BR-1500 that costs about $50,000. The viewer is not watching 3 robots rolling a burrito. The viewer is watching permission to believe in a future where a kitchen task on $1,000 of hardware is done by the same loop as an industrial one at $50,000. Here is what happens when the bottleneck stops being the intelligence of the controller and the quality of the imitation model, and becomes the number of arms in the setup, and for a maker with a 3D printer the number of arms is limited only by print time. 3 arms do not get tired between sessions, do not require retraining when a new one is added, do not degrade from repetition, and every next burrito goes through the same teleop pipeline at the same quality as the first. Imagine that multi-arm DIY setups are no longer built for one kitchen task, but printed for each one, burritos, sushi, tacos, pizza dough, pour-over coffee. We just watched hobby robotics shift from "retrain the controller" to "print 2 more": when one robot can not handle it, you do not make it smarter, you print 2 more. The viewer thinks they are watching a DIY experiment. They are watching a multi-agent robotics stack that in one 57-second demonstration rolled a burrito for the first time without human hands, and whose filling partially falls out on the final rolling. What will improve the final rolling, a softer silicone gripper, a 4th follower arm in the setup, or a different filling composition and a more moist tortilla?

Blaze

61,030 次观看 • 3 个月前

Bill Maher pulls the numbers on whether Gen Z is really suffering an affordability crisis. He starts with the $20 burrito, then compares their net worth to previous generations. The numbers are staggering. MAHER: “Have you heard about Burrito Gate? ... A student had commented... a burrito shouldn’t cost $20." “It shouldn’t cost $20 because it doesn’t. It costs $20 because this kid factored in somebody bringing it to him in an Uber.” [Audience groans] “You can get one for $2, and you could buy it in the supermarket. And somebody said they feed a family of eight on $20 by buying ingredients like we used to do.” “This is from the Fed. Okay, two-thirds of Americans consider groceries to be unaffordable. Maybe they are, but wages rose in the last decade, including the pandemic, 46%. Food prices rose 34%. So wages outpaced them by the numbers." “What we spend on food at the beginning of the last century, it was 42% of the budget, and then you go through the years, 1965, it was down to 15%. Now it’s under 10%, but including eating out more." “Also, Gen Z, I never realized this until people started writing about it. As they reach their late 20s now, they’re getting much richer than Gen X was. Millennials and Gen Z at age 30, their net worth is around $118,000." “Gen X’s was $53,000, like half of that. But Gen X never complained. You gotta love Gen X. They are the quietest f*cking church mice.” SIDE NOTE: I will say that housing and rent prices are too damn high. But that also doesn't discount the fact that kids these days are way too entitled and think they deserve to have food delivered AND have it be affordable. If you want convenience, it's gonna cost you. Don't complain when you're on a budget and too lazy to make the burrito yourself for 1/10th the price.

The Vigilant Fox 🦊

824,254 次观看 • 17 天前