Robo Pen Plotter
thingiverse
This Plotter fits the stock Robo 3d Printer. Plotter holder will fold down when printing tall objects. https://www.youtube.com/watch?v=i9zJe2K_120 Instructions You will need a M3x12 or M3x15 screw to the existing nema 17 motor. Use a Pilot G2 Gel ballpoint, in the pen screw take the spring from the pen and place it in the opening where the pen ink cartridge fits, It may have to be drilled out depending on your printers accuracy. I also found some super cheap 16 pk of fashion gel pens at walmart, I cut a pens top off of a g2 and insert it into the penscrew as they are a smaller diameter cartridge.
With this file you will be able to print Robo Pen Plotter 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 Robo Pen Plotter.