[109jb]

I am very interested in this project. I have seen your videos and they are pretty impressive. I can see how it already could be applied to smaller machines such as 3D printers and small routers. I have a benchtop milling machine and was wondering if you have tried this on larger machines. Also, does this take step direction signals like a typical stepper motor driver, or some other method.

[macdowswe]

I am very interested in this project. I have seen your videos and they are pretty impressive. I can see how it already could be applied to smaller machines such as 3D printers and small routers. I have a benchtop milling machine and was wondering if you have tried this on larger machines. Also, does this take step direction signals like a typical stepper motor driver, or some other method.

Thanks!
On the third video on the project page, you can see a demo with a 3kg mass moving 80cm.
Yeah, step/direction input will be, by popular request, the the first available interface to control ODrive.

[109jb]

Thanks!
On the third video on the project page, you can see a demo with a 3kg mass moving 80cm.
Yeah, step/direction input will be, by popular request, the the first available interface to control ODrive.

Well yes, I saw that video. However, I am wondering if it has been tried on a larger machine. A 3 kg mass on linear rails is still really nothing compared to what I am talking about. I'm considering trying it on my milling machine so I am talking more like a 40-50 pound mass moving vertically at at least 200 inches per minute. It is driven by a ball screw, but rides on dovetail slides which will have considerable more friction that linear rails. Has anyone attempted anything like this?

[macdowswe]

Well yes, I saw that video. However, I am wondering if it has been tried on a larger machine. A 3 kg mass on linear rails is still really nothing compared to what I am talking about. I'm considering trying it on my milling machine so I am talking more like a 40-50 pound mass moving vertically at at least 200 inches per minute. It is driven by a ball screw, but rides on dovetail slides which will have considerable more friction that linear rails. Has anyone attempted anything like this?

Ah fair enough. No, I haven't done anything like that. I don't think it will be a big issue though, as long as the gearing is well dimensioned.
Get a board, and try it ;D

[109jb]

Ah fair enough. No, I haven't done anything like that. I don't think it will be a big issue though, as long as the gearing is well dimensioned.
Get a board, and try it ;D

Are boards available and if so, where and how much do they cost?

[macdowswe]

Are boards available and if so, where and how much do they cost?

I will be facilitating a couple of production runs at different stages of maturity of the project. I expect that the early prototypes will be around $100, and with a larger run later on will be closer to $50. You can check out the details, and sign up for a board at any stage, here: https://hackaday.io/project/11583-od...nd-development