TESTED WITH CR-10
Succsessfull - Use 1kOhm for R3https://www.youtube.com/watch?v=-I5_oMVDs4Q
Additional tests are required. Need to make sure the output is reliable and stable.
I updated the circuit and did a new PCB Layout. V1.6 REV0 is the current version.
Final boards are on their way. Warning: The Pinout of the v1.6 Board has changed distinctly.
This circuit board provides ABL and Laser functionally trough a 6 wire cable to the print head. It's designed for laser modules with separate 5V PWM and 12V work voltage
It also brings down the 12V PWM signal from the part cooling fan to 5V PWM to
connect the laser module PWM/TTL port.
It provides a 12V work voltage with the ability to add a safety switch to prevent laser operation during printer start up. You can also add door switches or an emergency switch so secure the laser operation.
You can optionally connect an external power supply for the laser and ABL sensor.
The board provides an optocoupler for the ABL sensor.
All connections are provided via an 6-pin…

вот так подогреваю комнату где стоит принтер. так как окно так и не заклеил из за сквозняков температура не очень. все таки надо поставить подогрев и окно заклеить а то можно так подогреть что обои обуглятся и принтер расплавиться ахахаха. НЕ ПОВТОРЯТЬ!!!