M2 V4 Extruder Mod
thingiverse
I used the leftover plate from my M3 ID Bltouch upgrade to modify my M2 printer. I added the block that holds the stepper motor and the Bltouch mount, requiring modification of the part attaching the plate to the belt. The rest of the parts came from the Makergear ID3 printable parts site. To complete the upgrade, I installed the latest Marlin firmware version 1.1.9. Attached are the Configuration.h and Configuration_adv.h files. I tried to use the same values as the original Makergear M2 firmware whenever possible. The configuration_adv.h file has several changes made: / #define E0_AUTO_FAN_PIN 6 //enable extruder fan at 50 degrees / #define DIGIPOT_MOTOR_CURRENT { 135,135,135,135,135 } // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A) The Configuration.h file has numerous changes. I included a diagram showing how I attached the BLTouch to the Rambo printer. The only modification is attaching the orange wire to the blue dot (Pin 22). These are the fan covers I used: https://www.thingiverse.com/thing:20081 https://www.thingiverse.com/thing:1341005 edit: uploaded Inventor file edit: uploaded belt anchor IPT
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