paste extruder for delta printer

thingiverse

This is an upgrade for the Micromake Delta D1 printer or any other Kossel type delta printers. This extruder allows you to print with any kind of paste you can put into a syringe, such as chocolate, mashed potatoes, ceramics, or whatever you want. To make one of these you will need: 1. A flat stepper motor 42BY48L-53. https://www.ebay.com/itm/42BY48L-53-Stepper-motor/201982848742?hash=item2f071daee6:g:t~4AAOSwiA9ZY0SS&frcectupt=true 60 ml syringes. https://www.ebay.com/itm/1x-60-150ml-Large-Plastic-Hydroponics-Nutrient-Disposable-Measuring-Syringe-Tool-/223262476184?var=&hash=item0 A 1/4" threaded rod cut to 120 mm long and some nuts. One aluminum tube with an outer diameter of 35 mm, inner diameter of 32 mm, and a length of 100 mm. One silicone heating pad. https://www.ebay.com/itm/Silicone-Rubber-Heating-Pad-Heater-Mat-For-Oil-Tank-3D-Printer-Etc-Heated-12V-DC-/163643069458?hash=item2619e31412 Two thrust bearings with a diameter of 15 mm, outer diameter of 28 mm, and a thickness of 9 mm. https://www.ebay.com/itm/15mm-ID-x-28mm-OD-x-9mm-Thickness-51102-Axial-Ball-Thrust-Bearing/253583424682?hash=item3b0abffcaa:g:IxEAAOSwBLlVZ9jr Four M4X25 screws. Four M4 nuts. Two M3x8 screws. Two M3 nuts. Small diameter syringe tips. I used a 1.5 mm ID plastic tip from another small syringe to narrow the big syringe nozzle. After some extruder calibration, I used these settings: Filament diameter: 8.5 mm Speed: 5 mm/s Line width: 1.5 mm Nozzle diameter: 1.5 mm Layer height: 0.8 mm No infill, skirt support, top or bottom. For the test, I used white chocolate that I melted and put in the syringe. I kept the syringe temperature at about 35 degrees. Use the M302 P0 command to allow for cold extrusion. Don't forget to calibrate the printing height after assembling the new extruder.