i had bought a cheap Chinese 3018, was going well, so i upgraded the spindle and board, well, the new spindle is two overpowered for the boards im guessing and burned out two, im back to my old stock one and now for some reason the steppers are "stalling" they will go "brrrrrrrr' like they crashed but they are not doing anything, i can even spin the threaded rod by hand while the motor is making its high pitched noise, even disconnected it does same thing, got new steppers and same thing, so its the board but im not sure if the old board went 'bad' when i tried to upgrade to grbl 1.1, or if its just ****ty, someone else in the DIY section had the same issue, but it was fixed by them just taking things apart testing and putting it back together and it worked some how, so that is the next step when i get time, but was looking for some guidance, along with a board that is a bit better without breaking the bank.

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