Blackboard Vectors
thingiverse
This openSCAD file generates a set of visual aids useful for teaching vectors and electromagnetism. Included is an arrow, positive and negative charges, and north and south poles. Glue small magnets to the back and they'll stick to your blackboard or whiteboard. Make several arrows to create a vector field.
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With this file you will be able to print Blackboard Vectors with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Blackboard Vectors.