Save the original color assignment
Use a file you are allowed to edit, select the correct printer and filament profiles, record the original color order, and save a separate working copy.
Focused Lesson · Model Preparation
Painting and Reassigning Model Parts in the Slicer
Use the slicer to change colors and make sure every painted region uses the correct loaded filament.
Four checks before printing
SnapOrca 2.3.5 Paint Tools
Choose the tool that matches the area
First select the filament number you want to apply. Then choose the simplest tool that fits the shape you need to color.
Sample Topic — Full Tutorial PlannedThis is a short introduction, not a complete color-painting tutorial. A future version is planned to explain how these tools behave with different model types, surface shapes, part structures, and model-creation methods. We may expand this lesson before the submission deadline; until then, use it as a starting point and carefully inspect every painted model before slicing.
Circle
Paints a circular area on the visible surface. Use it for ordinary brush strokes, broad visible patches, and gradual edge work. Rotate the model and check the other side for missed areas.
Sphere
Paints every surface inside a three-dimensional sphere, including surfaces hidden from the current view. Use it to wrap color around rounded parts or edges. Check that it did not reach an unwanted surface.
Triangle
Paints individual triangular faces that make up the model’s surface. Use it for small details and exact boundaries. Results depend on the size and arrangement of the model’s triangles.
Height Range
Paints horizontal faces or a selected height band. Use it for stripes, bases, tops, or any color change that should begin and end at specific model heights.
Fill
Paints a connected surface area with one click. Use it for clearly separated regions that would take many brush strokes. Rotate the model afterward and inspect the filled boundary.
Gap Fill
Automatically fills small unpainted gaps within painted strokes according to the selected gap size. Use it after brushing to close tiny missed spaces, then inspect the result before slicing.
Quick selection ruleCircle for visible brushwork; Sphere for color that wraps through the selected area; Triangle for exact faces; Height Range for horizontal bands; Fill for connected regions; Gap Fill for small missed spaces.
Check every surface
Select the model region you want to recolor and assign the correct filament slot. Rotate the model to find missed spots, overlapping colors, or isolated painted areas.
Match each color to the loaded filament
Confirm that the slicer’s filament order matches the filament loaded in each physical toolhead or filament slot. Do not assume that the project file and printer use the same order.
Preview every color change
Review the sliced model one layer at a time. Check the wipe tower, purge volume, and small color fragments. Update the filament list with the new colors and amounts.
Cute Dragon exampleThe original listing shows red, yellow, white, and black. The checked project file uses red, black, white, and yellow. Match each colored part to the correct toolhead before printing.