[websrvr]

Now posted design, no posted software, no real description of features and functionality, kinda hard to have interest in a project with no content.

[macdowswe]

Now posted design, no posted software, no real description of features and functionality, kinda hard to have interest in a project with no content.

Sorry if it was confusing, the details of the project is in the link attached to the word Odrive in the original post. I can give the link explicitly here:
https://hackaday.io/project/11583-od...-motor-control
Cheers.

[websrvr]

Are you the creator of this work?

Since the project is being developed elsewhere, why is it being cross-posted here?

[macdowswe]

Are you the creator of this work?

Since the project is being developed elsewhere, why is it being cross-posted here?

Yeah I am. I thought it would be interesting to reach out to this community too. Especially since I see the type of machines that will benefit the most are heavy machines that need high precision.
I was hoping to engage in a fruitful discussion on this forum about the project.

Cheers!

[websrvr]

I'm curious to know how you came into the 150A or 75A current specification since all the PCB software I have access too tells me 30A on 4oz stopped copper is the best you can hope for.

[macdowswe]

I'm curious to know how you came into the 150A or 75A current specification since all the PCB software I have access too tells me 30A on 4oz stopped copper is the best you can hope for.

Well, first of all this is peak current, it will for sure not cope with 150A continuous current. Also, I think I can get a fair bit of extra heat dissipation through the heatsink on the mosfets, and down the phase wires. In the end, only testing will show what the capabilities truly are. If it turns out that it is too weak for a number of CNC applications, then it should be fairly easy to increase current capability by just increasing the size of the board and mosfets.

[RCaffin]

150A or 75A current through that PCB those FETs, those wires and those connectors?
Really?????
Cheers
Roger

[macdowswe]

150A or 75A current through that PCB those FETs, those wires and those connectors?
Really?????
Cheers
Roger

Yeah ;D
This is not a continuous rating, but peak rating. The continuous rating will be significantly less than that.
But it is the peak rating that is important, as the the torque peaks only during the first bit of acceleration in a move, and the last bit of deceleration. If you are using the torque to push continuously into a workpiece, the system should be dimensioned such that you would use much less current for that.

[macdowswe]

Hey everyone,
There is now an update about board availability and the roadmap for the ODrive features on the project page.
If you are interested in getting an ODrive board, you should check it out.
Cheers!