7/6/2023 0 Comments Openscad print![]() ![]() Using the up and down arrow buttons if you need to move the parts.Īgain, higher parts in the list take precedence when there is overlap. This should open a panel like this:įor each part confirm you have the correct extruder selected.Īlso make sure the parts are listed in the correct order, Once the object is loaded and positioned and scaled, double click on the loaded I scaled this snowman ornament down by 60%. Scale and rotate the object as desired.and select all of the STL files, and say Yes when it asks to load them as multiple parts of a single object. (Even upping from the default 70 to 150 still results in a pinkish or greyish hue to white on layers that also included red or black.) Especially for a color such as white, you'll need to greatly increase the volume to purge while loading. Update the Purging Volumes on the main page.Go to the Printer Settings tab and for each Extruder on the side set the Extruder Preview Color (eg, to black, red, and white).Make sure you have the MMU2 Printer selected (such that multiple Filaments are available).Once you have STL exports, you'll want to import them into Slic3r ![]() ![]() This is because I wanted black and red to have precedence over white when Snowman I might export out three separate STLs with: Sorted in the order of the desired extruders. I found it helpful to export the parts with filenames that can be Export the STL file ( File->Export->Export as STL)įor example, with the snowman example above here is what just red.Once the object is designed, for each color: The list take precedence over parts lower in the list for an object. It has an ordering such that parts higher in Note that this approach relies on Slic3r being OK with overlapping I found that for many use-cases this limitation wasn't a problem. (The color() function will make thingsĪppear like they might work, but the resulting rendered parts won't be proper.) Multicolor(), but with this approach you can't directly use subtractive Subtractive primitives (difference/intersection) as children of Union) are used to combine multicolor objects. Note that this only works well when additive primitives (such as Otherwise it ignores the tree of elements underneath. When current_color is "ALL" or when it equals the color passed to This module works by only applying a color and rendering the children In this above case, you could switch to each of current_color = "red" and current_color = "green" one at a time, and then for each do a Design->Render (F6) followed by an export ( File->Export->Export as STL) as two separate files. Which when rendered with current_color = "ALL" results in a multi-color object: Multicolor("green") translate() sphere(10) I use this function to define a "multicolor" module: The full OpenSCAD file for the snowman are available here, and I scaled this down by 60% before printing.įor example, here is a rendering of the multi-color object in OpenSCAD: I then export three separate STL files, one per color,Īnd then import these together into Slic3r. Operator in the OpenSCAD object design which changes its behavior based The approach that I've taken here is define and embed a "multicolor()" Some more direct support, but it isn't resolved. While OpenSCAD has support for applying colors to elements withinĪn object, it wasn't immediately clear how to leverage this to print a It can import eitherĪ multi-part AMF file or can load in a set of STL files, one for each Multi-color printing for the Prusa i3 MK3 MMU2. Slic3r Prusa Edition is a slicer used to do Language, and allows you to output one part at a time (such as intoĪn STL or AMF file). OpenSCAD allows you design and specify 3D models in a programming The snowman ornament shown here ( thingiverse:3319509) was designed alongside with my five-year-old son and then I used it to experiment with this approach to generate a multi-color ornament. It assumes basic familiarity with OpenSCAD, Slic3r, and using the Prusa MK3. This post describes a way to make multi-color (multi-material / multi-extruder) objects in OpenSCAD suitable for 3D printing with a Prusa i3 MK3 MMU2. Designing for multi-color 3D printing with OpenSCAD ![]()
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