Waveshare Desktop Robotic Arm Kit-Lightweight Strong Load 4-DOF Support Expansion & 2nd Development ESP-NOW Wireless Control Support Multi Upper Computers & ROS2, Open Source & Rich Learning Material

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This arm is fairly impressive. I'm not sure exactly what I was expecting, but it moves quite fast and has a fair bit of power to it. It is something you need to be careful with. Given that it is designed for desk mounting, you need to ensure you have a clear path around it, and that includes you - it could cause injury if you got hit in the eye or other sensitive area. It has fast rotation, and can be triggered to swing from one extreme to the other with some relatively minor changes in finger position when using the phone app. I was able to lift a desk lamp at near full extension, and while the lamp isn't super heavy, it has a weighted base and is probably near the half kilogram lifting limit.About using a phone to control this - I don't think that is the best way to control it. The controls didn't all fit on the screen nicely, at least not in some control modes, and the touch control was less than precise and prone to causing it to go from one extreme to the other if you cross the limit axis of movement (I am sure there is a better way to explain this but I don't know what it is - its rotation goes about 180° in each direction from initial reference point, but at the extremes of each direction there is a crossover point where just a tiny movement will make it do pretty much a full 360).There are a lot of options for controlling it, and I haven't dug into them yet. This will take some research and learning to really get up to speed - it has a lot of capability but while the app is fairly easy to get up to speed with, some of the more interesting options for control will require investment of more time and effort. I only plan to have one of these so I won't get to fiddle with the synchronized movement, which is a bit unfortunate, that sounds kind of neat. I may at some point try mounting this on a mobile platform, we'll see how far that goes. I do think that with the right development skills, there is quite a lot that could be done with this. It does have useful lifting power and while a mobile platform would require some design to ensure it was stable and didn't tip over, I think that could open up the applications for this quite a bit.My app testing didn't really provide a great chance to explore its precision, but when it goes back to its home position it seems to do so fairly exactly. Once I start coding it then I should be able to get a better handle on how precise and repeatable it is.If you are looking for a robot arm that can be used as more than just a toy (and I would not recommend this for young children due to the danger it poses of getting hit in the face when it swings) this could be a good choice. It certainly has potential. I can see this being handy for college robotics projects and that sort of thing.

My husband got this as a toy for himself and now the grandkids love to play with it.

es de los mejores robots que he comprado, super silencioso y solido

I had some issues with the robot arm when I received it. However, customer support was excellent, to be honest one of the best that I ever had. This is a very good option for a budget robot arm.