How does dobot mg400 robot arm maintain endeffector position parallel to ground. What is the kinematic mechanism that i can refer similar to the robot arm? So much curious to know the answer

Hello everyone, I have a project that’s going to start soon but not sure how to set up. We have one robot which I am controlling and three others chasing this robot, trying to stop the first one. My question is how do I start? The first robot is already done, I can control it but I’m not sure how to get the others to just chasing this one down and get it to stop. My first thought is to get one on each side, get on in the front of it and slowly close in on it… but not even sure how I can do that? Any tips on how to start would be appreciated!

Hello everyone, I'm stepping into unfamiliar territory with motion control systems and honestly, I'm starting from scratch here. I'm aiming to create sophisticated, smooth shots for cosmetic and beverage ads, but I need some foundational help.

Could anyone kindly explain the basics of what type of machine I should be looking for? I'm also curious about specific brands that are reliable yet suitable for a beginner. Additionally, I would appreciate guidance on how to program simple motions and where I might find parts and components.

To give you an idea, I’m looking to replicate the smooth panning seen in high-end perfume commercials, the precise, slow-motion capture of a lipstick coming out of it's packaging or a shot of a product slowly being submerged in liquide. Any tutorials, forums, or resources that are particularly helpful and beginner-friendly would be greatly appreciated. I'm eager to learn and grateful for any advice you can share to help me get started on this journey. Thank you in advance for your patience and assistance!

Hi guys, is there any way to open my old project, that has RobotWare version of 6.00.00.00-1105? I always got incompatibility issue no matter which RobotWare version I try...

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https://preview.redd.it/osyjfrrk8vwc1.png?width=699&format=png&auto=webp&s=66289680f6606ce1d8e8d08f5c347986ab36b2b0

I am trying to build a remote controlled car and I saw a model car laying around that is a decent size (can probably fit an Arduino somewhere in it) and was wondering if it’s doable to disassemble it and put motors to the wheels and control it. Would like to hear opinions as I haven’t experimented in robotics that much but dabbled with drones.

Hey guys!

I’m working on something and am trying to find the most cost effective solution and wondering if anyone has ideas.

I am looking to make a laser measurement meter that has an array of lasers (similar to something like a light curtain). Essentially the idea is to have an array of 5 lasers in a cross pattern so that you can measurement from 5 different points, but need to make it as cheap as possible. The range can be 0-1 meter, but all the laser measurement sensors I see online are at least $12. Anyone know how I could do this any cheaper?

I’m looking to get a dev kit that can support a puck LIDAR and some cameras for image aided navigation (with a GPS and IMU for sensor fusion). I’m looking for a kit that already has everything I need so I can test different vision odometry algorithms. Ideally it would be a dev kit that lets me test things in real time as well as simulations along maybe some cheap gps/imu. This way I can add a lidar or other sensors along with a nvidia processing unit. If the dev kit is missing some hardware that’s fine too, I can get some of them separately.

An example scenario is I’d like to put the dev kit, cameras and sensors on a cart and push it around to see what kind of performance I could get if I fuse it with GPS/IMU data.

My budget is roughly 10k.

Hello,

I am a total newbie in programing and robotics, but I am very passionate about these topics and I've thought about creating a keyboard that is put on top of a another keyboard and so by monitoring the screen via camera or (better options/ideas) would be able to learn playing the games. Maybe somebody has done something similar or have insights on this project?

Running only a software on the PC/Laptop does not really work ,as there are other softwares that monitor these type of things and the whole purpose is to have a totally external device running w.e it is there to run on your PC.

Hope I have described my idea well enough, I am really looking for people who could help me or guide me , would pay also!

Hi, I'm trying to understand the cost/time to program a cobot for SMEs, particularly for tasks involving perception and trajectory dependent on camera inputs. What's the average cost/time? How are they currently addressing this issue?

Recently we've had a lot of issues with our aging Aldebaran Nao robot.

We've had to take matters into our own hands and fix it ourselves since it is our of warranty.

I've been using Nao more and more recently for my investigations into the recent advances in AI and how they can be applied to social robots.

In this post you can see pictures and read up on our different fixes.

https://roborabbit-labs.com/2024/04/25/diy-adventures-repairing-our-aldebaran-nao-robot-from-disk-errors-to-broken-fingers/

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One thing that comes to mind is probably the problem of distributed multiagent control due the poor nature of underwater communication (large delays, small bandwidth).

What are some others?

https://github.com/NVIDIA-AI-IOT/jetbot/blob/master/notebooks/road_following/train_model.ipynb

can someone tell me why does it give me this error on this code, please?

---------------------------------------------------------------------------

ValueError Traceback (most recent call last)

<ipython-input-10-e28cdcb6444f> in <module>

47 batch_size=8,

48 shuffle=True,

---> 49 num_workers=0

50 )

51

c:\Users\milam\.pyenv\pyenv-win\versions\3.6.8\lib\site-packages\torch\utils\data\dataloader.py in __init__(self, dataset, batch_size, shuffle, sampler, batch_sampler, num_workers, collate_fn, pin_memory, drop_last, timeout, worker_init_fn, multiprocessing_context, generator, prefetch_factor, persistent_workers)

268 # Cannot statically verify that dataset is Sized

269 # Somewhat related: see NOTE [ Lack of Default `__len__` in Python Abstract Base Classes ]

--> 270 sampler = RandomSampler(dataset, generator=generator) # type: ignore[arg-type]

271 else:

272 sampler = SequentialSampler(dataset) # type: ignore[arg-type]

c:\Users\milam\.pyenv\pyenv-win\versions\3.6.8\lib\site-packages\torch\utils\data\sampler.py in __init__(self, data_source, replacement, num_samples, generator)

101 if not isinstance(self.num_samples, int) or self.num_samples <= 0:

102 raise ValueError("num_samples should be a positive integer "

--> 103 "value, but got num_samples={}".format(self.num_samples))

104

105 u/property

ValueError: num_samples should be a positive integer value, but got num_samples=0

Hey yall, might seem a little basic but I really can't find a decent video on YouTube but any of yall got any advice on designing robotic shoulder or wrist joint? I'm an ME student and I wanna try building a full arm prosthetic but the shoulder joint is kinda confusing me without having to basically stack 2 or 3 motors together...

Hey everyone,

I hope you're all doing well! I'm currently a final year mechanical engineering student, and I recently got accepted into the Robotic Systems MSc program at RWTH International Academy.

However, I’m not sure about it, and I've got a few questions and I'd love to hear from you guys:

1. Ph.D. Pursuit: I'm really keen on pursuing a Ph.D. after my MSc, but I'm struggling to find info on alumni who've taken this route. Do any of you have insights or know someone who has gone on to do a Ph.D. after this program? Especially interested if they've gone to institutions like ETH Zurich, Cambridge, EPFL etc.

2. Reputation: I know RWTH is pretty prestigious, but what's the scoop on the reputation of the International Academy? Is it on par with the main university in terms of quality and recognition? I've also been accepted to Ghent and possibly Sapienza, Freiburg and one or two other places which are much cheaper options. I'm wondering if the International Academy is worth the extra investment or if it's just an imitation of the real RWTH.

3. Curriculum Flexibility: While the program or the alumni seems focuses on manipulators, I'm more interested in mobile robots. Any idea if the curriculum offers flexibility or elective courses in this area?

I'd really appreciate any advice or personal experiences you guys can share. Thanks a bunch in advance for your help!