Kobra 3 ACE Pro — Color Swap Workflow Reference

ACE Pro Channels

Loading Filament

1. Prepare filament end — cut at 45-degree angle, no fraying
2. Open ACE Pro channel latch
3. Insert until resistance is felt (tip entering extruder path)
4. Load via Kobra 3 menu: Prepare > Load Filament > Channel X
5. Confirm when filament appears at nozzle

Unloading

1. Menu: Prepare > Unload Filament > Channel X
2. Confirm — printer retracts
3. Pull gently when retraction is complete

Color Change Mid-Print (Manual)

1. Pause print from LCD or OrcaSlicer
2. Wait for nozzle to park
3. Unload current channel
4. Load new color — purge until clean
5. Resume print

ACE Pro Tension

If feed errors or missed swaps:

• Check tension screw on each channel (clockwise = tighter)
• Should grip filament firmly without crushing
• Too tight: extruder grinds, skips steps
• Too loose: slips, under-extrusion

Purge Volume Settings

Adjust in OrcaSlicer filament settings:

• Dark to light: 120-150 mm3
• Light to dark: 80-100 mm3
• Similar hues: 60-80 mm3

Common Issues