First Print

Congratulations on building your 3MS! Now to get started with a first print.

Slicer Setup

This tutorial will walk you through setting up the 3MS with OrcaSlicer. If you use another slicer, some settings may differ.

Credit

This tutorial is based off of the original Happy Hare slicer setup docs, available here.

Machine Settings

Begin by opening your machine settings.

Navigate to Machine G-Code.

Start G-Code

Prepend your Machine start G-code with the following:

MMU_START_SETUP INITIAL_TOOL={initial_tool} TOTAL_TOOLCHANGES=!total_toolchanges! REFERENCED_TOOLS=!referenced_tools! TOOL_COLORS=!colors! TOOL_TEMPS=!temperatures! TOOL_MATERIALS=!materials! FILAMENT_NAMES=!filament_names! PURGE_VOLUMES=!purge_volumes!
MMU_START_CHECK

Then, append the following below your existing G-code:

MMU_START_LOAD_INITIAL_TOOL
; Optionally add YOUR additional start logic (like purging) here to run just prior to start
SET_PRINT_STATS_INFO TOTAL_LAYER={total_layer_count} ; For pause at layer functionality and better print stats

BeforeAfter

End G-Code

Prepend your Machine end G-Code with the following:

MMU_END

Then, append the following below your existing G-code:

MMU_PRINT_END ; Only required if using Octoprint

BeforeAfter

Layer Change G-Code

Scroll down and edit your layer change G-Code.

Add the following:

_MMU_UPDATE_HEIGHT

; If you want enhanced pausing feature with Happy Hare client macros also add this
SET_PRINT_STATS_INFO CURRENT_LAYER={layer_num} ; For pause at layer functionality and better print stats

BeforeAfter

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