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License: MIT License
3-phase motor controller with integrated position sensor
License: MIT License
HELLO,I'm study this and I have done both firmware and hardware.But it doesn't work when I send order. It shows that there's no receive.I check and not find anything wrong.All firmware and hardware are yours,I haven't change anything,is my app which send order wrong?
Hi Ben,
Love your work. I noticed there's no license file in this repository. Are these files released under an open source license? If so could you let me know what license and where it's documented if anywhere? I'm wondering if I'm permitted to use any of your work in a future OpenLeg Drive. (same question applies to your mbed repositories)
Thanks,
Joey Byrnes
Hi Ben,
I really appreciate the work you've done and the fact that it's open source. I'd like to ask you a question, if I could.
I raised the specification of motor magnetic steel to a higher level, resulting in the return of the driver to UVLO and OTW. Do I need to change the parameters in the code ?
Hi Ben,
I really appreciate the work you've done and the fact that it's open source. I was delighted to find your GitHub with a lead from Gennady's "Skyentific" YouTube channel.
I want to get a quote from PCBway on ten assembled controllers and have a noob question (or two) regarding how to get the quote from their online estimator tool.
I see that there is a build files directory for PCBway , which zip file do I upload to the estimator tool....is it one of files in that directory, is it the MFG.zip in the parent directory, or another?
Is there a another step I'm missing? I've tried uploading MFG.zip but am unclear on the correct values for number of components and number of pads.
I'm sorry to be asking for such basic help, I'm new to this level of hardware R&D, my expertise lies elsewhere and I'm trying to achieve maximum value on a shoestring budget without accidentally blowing the budget by making a procedural error at the quotes stage. Hopefully I'm on the right track and that you won't mind too much me asking.
yours,
John
The 'Cheetah Driver Integrated V4 connector' schematic has YCAP1, YCAP2, YCAP3 listed as 'Do not place', whilst 'Cheetah Driver Integrated V4' has them listed as 100nF, but they do not appear in Parts_no_connector.xlsx
Are these caps required?
Hey Ben,
Thanks for this awesome open source project. I do a lot of open source work too.
https://github.com/bdring/Grbl_Esp32
https://www.youtube.com/watch?v=M1gXuKFspgY
I stumbled upon one of your designs on AliExpress. I bought one to test. The motor I received looks like this.
The documentation I received is pretty limited.
I hope to use the motor some sort of fabrication or kinetic art machine. The motor is so clean looking and the wiring can almost be invisible. I am quite excited.
I have been able to move the motor via the CAN bus, but I don’t have a real feel for what values to provide for Kp, Kd and Feed-Forward Current. Is there any guidance you can give me?
Thanks
Bart Dring
Dear benkatz
Using the project with the connection address, the compilation fails, prompting the following information。
Error: Warning: L6320W: Ignoring --keep command. Cannot find argument 'os_cb_sections'.
Hi,
Could anyone suggest the python api to interface with cheetah actuator with this firmware please?
Thanks
Greetings Ben,
This is a very neat project! Without having dived too deeply into the inner workings of the board and BOM yet, I was wondering if you could provide some insight on what aspects of the design cause the max current draw to be capped at 40A?
I’m hoping to use this as a start for a project I’m working on and ultimately would like to allow for a peak of 60A and wanted to make sure I didn’t miss any of the details needed to do that.
Thank you for your time!
Hello, there,
First of all, this is great work and thanks for making it open source so others can learn control theory and robotics.
Not sure whether I should be rising the issue for this or not but this is the only option I have.
I am editing the schematic (because LDFM33PUR are out of stock and as a replacement I am going to use LD39050PU33R) in the Eagle software an some of the part symbols are in the BenLibrary and the file is not there in git package.
Can we get the symbol library file for Eagle?
Hi Ben,
Thanks for open sourcing all of this and providing nice documentation. I'm using one of the knock-offs from your design (T-motor AK80-6) and am trying to understand the power consumption I'm seeing. The module runs on 24V and when the motor isn't in control mode it consumes 28 mA.
When entering control mode, the current jumps up to ~110 mA (measured from benchtop supply). I'm trying to understand where this current is going. The DRV8323 should only consume ~12 mA and with the q-axis and d-axis currents set to zero (using kp =0, kd =0, tau_ff = 0, I_FW_MAX = 0) I would think the only other current would be for gate charge. Did you see similar current values on your mini-cheetah modules?
Thanks for the help!
I made this board, but stm32 is not recognized.
Therefore, I cannot write a program.
I'm using stlink latest firmware.
How are you writing the program?
Thank you.
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