Two Trees v1.5 Turbo Controllers Unresponsive

General Discussion
1

Hi all,

New Klipper user trying to complete a Voron 2.4 build using Two Trees v1.5 Turbo controllers with OctoPrint, and experiencing some unexpected behavior. While the boards appear to accept commands as evident in physical controller lighting, the commands do not translate to the expected actions as follows:

  1. Using M106 command via OctoPrint “Fan On” control does not result in any fan activation, but the print cooling fan pin light on the controller is activated. An M107 command via OctoPrint “Fan Off” de-activates the pin light.

  2. When clicking the “X/Y Home” OctoPrint control, there is no motor movement. However, this control activates the hot end heater and results in uncontrolled heating above the 270 degree limit present in the configuration file. The thermistor is providing accurate temperature readings at room temperature, and registers increases when the hot end is activated. Prior attempts to use the TURN_OFF_HEATERS command via OctoPrint Terminal were not effective (this was not attempted in the latest testing detailed in the attached Klippy log).

I’ve tested wire connections using a multimeter, and triple-checked all connections are correctly placed on the boards. Unfortunately, I’m very novice when it comes to this type of build as this is a first attempt, but any advice or thoughts would be very much appreciated.

Thanks!
klippy.log (218.2 KB)

2

Most likely your pin assignments is wrong at some places. It looks like the board is a clone of the BTT SKR 1.4 so the config here klipper/generic-bigtreetech-skr-v1.4.cfg at master · Klipper3d/klipper · GitHub should give you some hints.

3

Thanks, Sineos. As I understand you’re correct on the board being a clone of the BTT SKR 1.4, and the configuration you linked to is what I used for the Klipper config file. I’ll attempt to match the pin mappings on the config file to the SKR 1.4 pin diagrams I’ve found online and post the results. I’ll post a few pictures of the connections in case anyone can easily identify an issue once I’ve verified the mappings.

Appreciate the response!