Delta kossel laser

thingiverse

This is my version to equip a 3D printer with a laser head. Two objects are offered: a platform with magnetic attachments and a laser head holder attached to the platform. The magnetic mount project can be found here: https://www.thingiverse.com/thing:4177769 I am using a 5V, 1500mW laser which was previously ordered from Aliexpress: https://www.aliexpress.com/item/33019893763.html?spm=a2g0s.9042311.0.0.27424c4dgifHtx. To attach the laser to the Trigorilla board, I soldered a small transition circuit shown in the figure for PWM support to laser. Note that my laser works with 5V, but to drive the fan, the board gives 12V. I soldered the main power pins for PWM - 5V and GND directly to the 3D printer board, but it turned out that the entire 5V bus is connected. This means you can connect anywhere where 5V or GND is marked; the PWM signal line is connected to the 12V output "FAN 0". If you use a different type of laser or 3D printer, the connection may be different or you can use it directly from this 12V port. To prepare the material to be cut, I use the INKSCAPE program with this extension: https://jtechphotonics.com/?page_id=2012. With Pronterface, I adjust the height to get the laser focus point. https://marlinfw.org/meta/gcode/ M106 enables the fan (laser), but M107 disables it. With command M106 S255, you can switch on maximum power. The printer software itself has been updated with the latest Marlin 2.0.5.3 software. There is a doubt that delta leveling doesn't really work, but with newer versions or bug fixes, it should be okay. A circuit was also created to switch from a fan to a laser, as access to this port is difficult and inconvenient.