Plotter addon for FDM 3D Printer

prusaprinters

<p>Plotter addon for FDM 3D Printer</p><p>Pen plotter addon for FDM 3D printer. Made in Freecad, sources included.</p><p>It is easily mounted on the side of the 40 mm layer fan and can be left permanently installed.</p><p>You will need some smooth 4mm in diameter shaft cut to length (two pieces). I used aluminum but other materials such as PVC, steel, carbon fiber, etc. can be used. The shafts can be pressed in, no glue needed.</p><p>It uses a standard SG90 miniservo. You can find wether your printer has free pins and activate one for the servo in Marlin.</p><p>You also will need a short 2 mm in diameter screw for the connecting rod, and standard screws to mount the servo, and its arm to the connecting rod.</p><p>The pen holder is a small piece that you can easily interchange for different pen sizes. It has a captive screw to keep the pen in place, to which you can make a groove so it is at the same height in every plot. Probably you'll need to file the shaft holes in this part a bit until it runs smoothly.</p><p>There are two sizes of holder for the pen: 4 and 12 mm.</p><p>-- Print Settings --</p><p>Print all parts in the orientation they are when you load them.</p><p>0.15 mm layer height is OK for all parts (0.2 mm for the first layer)</p><p>Part 1 - The support base: This part can be printed with standard 20% infill. No supports, 7 layers top, 7 layers bottom, 3 vertical shells. Print a skirt if you want, but no brim is needed.</p><p>Part 2 - The pen holder: 20% infill, No supports, 3 bottom and top layers, 2 vertical shells, bridges activated, brim of 12 mm at least (otherwise it can pop out of the build plate)</p><p>Part 3 - The servo arm (connecting rod): It is important to print it with 100% infill. This part DOES require supports. No brim.<br>&nbsp;</p>