bigtreetech/bigtreetech-ez-driver

bigtreetech-ez-driver's Issues

VSA power supply on TMC5160

Hello,

The Datasheet from TMC5160 states, that when using high power for the motor drivers it would be desirable to power the chip on pin VSA and 12V out with 12V power supply (TMC5160 datasheet rev1.18 page 16). Instead the EZ drivers look like they power VSA from VM, which can be 48V. Did anybody noticed TMC5160 overheating while using 48V supply?

Reference of EZ driver connector

I would like to had the EZ driver connector on my own PCB for a robot project, does it have a number part or manufactor reference ?

How to disable DIAG pin

I'm pretty sure the DIAG pin on the EZ2209 driver is causing my endstops not to trigger (or stay triggered, depending on which state I choose (high or low), while using the internal pullup - Marlin fw). On your TMC2201V1.2 you talk about this exact issue and your solution is to cut the DIAG pin. I'm using an Octopus MAX EZ with your EZ2209 drivers, so there is no pin to cut. Any suggestions on how to disable this pin?

Lack of footprints for EZ Driver socket.

There are no footprints available for the EZ Driver socket for KiCad or other EDA software. There are no specifications to use to create footprints from. This will prevent hobbyists from embracing the socket.

Please add EZ5160RGB

because it's not included in the repository @bigtreetech.

VS rail shorted to ground through MLCC.

I'm helping someone who observed a EZ2209 make a loud pop and emit flame while powered on by examining their EZ2209 to try and determine a root cause of the failure.

These images show the state of the driver after the heatsink was removed and initial cleaning:

Notably, the VS tracks have been largely vaporized with damage particularly on the pin 28 side of the board (towards the square cutout side). I further investigated C3 as a potential cause of the issue, as the positive side of the capacitor and its trace appears to have been completely destroyed with the opposing ground plane also blown off. The following image shows the state of C3 while in-situ:

Based on the apparent damage to C3 (missing a corner of the capacitor body besides the contact), I desoldered C3 and flipped it over to examine the corner that appeared to have been destroyed:

Considerable destruction of the capacitor body is observed. Note that the ground-side electrode separated from the MLCC while it was removed. In particular, the corner of the capacitor close to the camera exhibits considerable carbonization and is no longer geometrically intact. This supports a hypothesis that the failure was caused by a short to ground from VS through C3 caused by stress cracking originating at a corner of the VS side of the capacitor shearing the electrodes. Under this hypothesis, the damage to the capacitor (and the rest of the PCB) would be caused by the resulting large fault current as the motor capacitor discharging through the shorted electrodes in the capacitor, explaining the asymmetric damage to the capacitor centered near one of the contacts.

I suspect that this failure was caused by either mechanical force applied during assembly or through flexing of the PCB at some point during assembly, shipping, or installation. Based on this, redesign of the heatsink to redistribute mechanical loads away from the PCB, use of a flexible termination MLCC, or moving the MLCC away from potential load paths may address the issue.

How can I get the ez5160 pro's diag pins to be used on the octopus pro board?

It uses klipper firmware.
How can I get the ez5160 pro's diag pins to be used on the octopus pro board?
The ez connector diag pin is located on the clk of the octopus pro board.
can you make another ez connector for octopus board?