There's also the 5-dof version that I've seriously considered buying at one point, but it's really hard to tell if the ROS 2 integration is any good: https://www.waveshare.com/product/robotics/roarm-m1.htm

A real shame there isn't a 6-dof one, since that's what you'd really need to grasp anything properly in the radius around the arm.

This is one of those things I have NO NEED FOR but I definitely would want one on my desk.

Nice. What do you use it for?

Reproducible test scenarios for barcode scanning with a smartphone.

Unless it has to do something with the print quality itself, can't this be achieved using a stationary phone with its camera towards a monitor displaying 3D transformed barcode images ?

Yes, possibly. But reading from the screen is quite different from reading actual barcode prints, for instance you have to deal with Moirè patterns and such. And frankly it was just a good excuse to buy an arm. Sue me! ;-)

> for instance you have to deal with Moirè patterns and such

My understanding is e-ink displays will not be suceptible to that.

I might just have given you an excuse to buy a large e-ink display/monitor :)

Haha fair play, this is exactly how things should be!

I wish I had it a decade ago when I tested phone touch screens

Very clever. This use case would never cross my mind.

Any such thing on amazon etc?

How is the software support?

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