The motors dont look brushless but are they? I also dont see capacitors on the ends, but maybe they are on the board? I have had to put capacitors on the ends by the motor to stop problems with motors and mcu’s, when on the same power rails though.
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Bear Fulmer wrote:
The motors dont look brushless but are they?
They are not
I also dont see capacitors on the ends, but maybe they are on the board? I have had to put capacitors on the ends by the motor to stop problems with motors and mcu’s, when on the same power rails though.
check the board specifics in the hardware design github
David Lang
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it looks like the current driver is an hbridge type DRV8876PWPR, what is slightly confusing as I am not used to looking at a drawing like this, what is the TMC2209-LA used for, its a stepper motor driver from what I can tell. is it an interface between the hbridges and the mcu? I just havent seen the right drawing I can read well.
Id like to look at a drawing that has the entire board, I feel I have found some of this stuff, im a github noob but I have made a few circuit boards.
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Here is a schematic for the whole board:
The DRV8876s are there to drive the four DC motors which control the belts, and the two TMC2209-LAs are there to drive the two stepper motors for the z-axis.