DSE Only - Stage 08: Firmware

Changes that need to be done to the marlin firmware are all in the Configuration.h file.

Line 149:

Set Extruders to 2

Line 187:

#define SWITCHING_NOZZLE

Line 189:

3

Line 190:

{ 0, 100 }

Depending on the direction the hotends are switching in on your printer:

HOTEND_OFFSET_Y {0.0, -19.00}

HOTEND_OFFSET_X {0.0, -19.00}

Set the thermistor for the the second hotend.

Uncomment USE_ZMIN_PLUG

This is where the Probe signal will go.

Make sure both are set to false:

Z_MIN_ENDSTOP_INVERTING

Z_MIN_PROBE_ENDSTOP_INVERTING

Uncomment line 682:

Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN

The Probe is offset from Hotend #1 (left Hotend). Lines 784-786.

You may need to swap the X/Y values around if your Hotends switch in the X-direction.

X Offset: 45

Y-Offset: 19

Z-Offset: -3

Line 882:

Make sure the Z-homing direction is set to -1

Lines 891-896:

Adjust your build platform size accordingly to fit the DSE assembly.

Note, the Z-height will be reduced by aprox. 50mm.

Set the auto-leveling to:

AUTO_BED_LEVELING_BILINEAR

Because of a bug in the current release of the marlin firmware we're setting the servo settings this way:

Line 1922:

NUM_SERVOS 4

Line 1927:

SERVO_DELAY { 300, 300, 300, 1000 }

Make sure to correctly map the pins you have connected signal cables from the servo and probe to pin numbers in your specific board-pins config.

The image shows the pins_RAMPS.h as an example.