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Low Cost Robot Arm

github.com

21–30 of 258 posts

Re: Low Cost Robot Arm

#21
post #19
post #17

I want the arm to wander around my house, pick up articles of loose clothing and put them into washing machine. Then pull them out and spread them on a drying hanger. How far away from that are we?

It has been here for several millennia... it even has two legs to walk around and two rotating cameras connected to a very powerful LLM...

Nah, that model is expensive and buggy, not to mention closed source.

Re: Low Cost Robot Arm

#22
post #13

Anyone who finds this interesting might also like this one, it‘s not DIY – comes fully assembled: https://www.waveshare.com/roarm-m2-s.htm I have one and the build quality is really impressive for the price point.

How is the software support?

I‘ve only just started using it via the web UI, no idea.

Re: Low Cost Robot Arm

#23

Anyone who finds this interesting might also like this one, it‘s not DIY – comes fully assembled: https://www.waveshare.com/roarm-m2-s.htm I have one and the build quality is really impressive for the price point.

Nice. What do you use it for?

Reproducible test scenarios for barcode scanning with a smartphone.

Re: Low Cost Robot Arm

#25
post #18

Does anyone have any suggestions on something that's a little higher quality, i.e. more torque and larger, like the size of a UR5 but cheaper than $30k? There's always seems to be a gap between "robot arm with dynamixels/off the shelf servos" and "research-grade arms".

I have a dobot mg400 but there are quite a few others: uFactory, elephant robotics, annin, dorna, epson (vt6L and their scaras), and lynxmotion is releasing their ses-v2.

Re: Low Cost Robot Arm

#26
post #18

Does anyone have any suggestions on something that's a little higher quality, i.e. more torque and larger, like the size of a UR5 but cheaper than $30k? There's always seems to be a gap between "robot arm with dynamixels/off the shelf servos" and "research-grade arms".

Probably not UR5 size, but Aloha robot arm sounds like something you might be interested in: https://www.trossenrobotics.com/aloha-kits

Re: Low Cost Robot Arm

#27
post #18

Does anyone have any suggestions on something that's a little higher quality, i.e. more torque and larger, like the size of a UR5 but cheaper than $30k? There's always seems to be a gap between "robot arm with dynamixels/off the shelf servos" and "research-grade arms".

I‘m not sure as far as your technical requirements go, maybe Igus.eu would fit your needs? They do have a fairly good robot automation portfolio that seems to be very price competitive as far as I can tell

Re: Low Cost Robot Arm

#28

I printed a robotic arm for school. Unfortunately, we weren't using a high quality enough printer, so the tolerances were off and things didn't slot together well. I'd recommend people to know the precision of their printer before setting off to build this.

Alternatively, make everything just a tad out of tolerance and drill/sand/machine it to a more precise size.

I tend to do this. I know I could get better at printing (though my printer is pretty old), but sand paper and a rotary tool are really fast and can be pretty precise and accurate too.

Re: Low Cost Robot Arm

#29
post #18

Does anyone have any suggestions on something that's a little higher quality, i.e. more torque and larger, like the size of a UR5 but cheaper than $30k? There's always seems to be a gap between "robot arm with dynamixels/off the shelf servos" and "research-grade arms".

I have a dobot mg400 but there are quite a few others: uFactory, elephant robotics, annin, dorna, epson (vt6L and their scaras), and lynxmotion is releasing their ses-v2.

Wow, thanks for the list of resources. My problem with most robot arms are either they have small payloads, accuracy isn't very high, are too slow, or software support is terrible. Do you have any specific suggestions for 6DoF? The MG400 looks to have 4.

Re: Low Cost Robot Arm

#30
post #18

Does anyone have any suggestions on something that's a little higher quality, i.e. more torque and larger, like the size of a UR5 but cheaper than $30k? There's always seems to be a gap between "robot arm with dynamixels/off the shelf servos" and "research-grade arms".

Probably not UR5 size, but Aloha robot arm sounds like something you might be interested in: https://www.trossenrobotics.com/aloha-kits

Thanks for the link, I would categorize this robot as "robot with off-the-shelf servo".
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