Mini Spool And Rainbow Filament Guide. Learn to Make Rainbow Filament

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This text appears to be a tutorial on how to create multi-colored filament for use in 3D printing. The author, "Coolkid1717," provides detailed instructions and tips for successfully coloring filament using a variety of methods. Here is the text broken down into steps: **Step 1: Prepare the Filament** * Put the STL file you want to print into a slicer that shows how much filament it will use in units of meters. The author used Cura. * Unspool more filament than the slicer says will be needed. For example, if the slicer says 17.3 meters will be needed, unspool 20 meters. **Step 2: Measure and Cut the Filament** * Measure out the correct number of turns for the mini spool based on the circumference (0.490088 meters). The author suggests adding a few extra turns to be safe. * Place the original roll of filament on the spool holder, then slide the end of the filament through one of the holes in the mini roll and secure it with tape if necessary. * Cut the filament and place the end in one of the holes on the mini roll to keep it secure. **Step 3: Set Up for Coloring** * Create two secure spindles using vice clamps, metal rods, or chairs. The rolls should fit snugly enough on the spindles that they won't unroll by themselves. * You can use one mini roll and the original filament roll, or print out two mini rolls. **Step 4: Color the Filament** * Use a method of your choice to color the filament (e.g. markers, paints, etc.). The author suggests using a secure spindle setup to keep tension in the filament. * As you color the filament, roll up one roll and unroll the next. Continue coloring until all the filament is colored. **Step 5: Dry the Filament** * Let the ink dry for several hours or overnight so that your extruder doesn't slip on wet ink. **Step 6: Print with the Colored Filament** * Now you can print with the colored filament as you normally would. The author also provides some additional tips and advice throughout the tutorial, including how to prevent tangled filament and how to ensure a smooth transition between colors. Overall, this appears to be a comprehensive guide for creating multi-colored filament for 3D printing.