Adjustable Spool Coaster Rail System and Things

thingiverse

The concept is extremely straightforward - all you need to do is print out two or more rails and four or more coasters. Attach the rails side by side next to your printer using strong adhesive tape or secure screws, assemble the coasters remembering that the 'jaws' of each coaster aren't exactly alike for easier control over their positioning - simply rotate them 180 degrees to adjust their placement in half a notch increments and remember that you will also need 608 bearings. Position the coasters onto the rails according to your spool's dimensions, and that's it - job done! It was specifically designed for PLA material usage, but I'm not aware if it will work properly with other materials.