The Printrbot Paste & Food Extruder replaces the Simple extruder head with a heated syringe holder and a stepper motor to push the syringe down. This allows you to dispense viscous material, like frosting or drywall compound, instead of the plastic that your typical 3D printer uses.
Two (qty 2) syringes included with shipment. For replacement syringes, click here.
For replacement tips, use standard “luer lock” needles. Click here for an example of luer lock tips.
WARNING: Installation is not trivial, since you have to significantly disassemble your Simple and once you get the new extruder mounted, the wiring is a bit technical.
152mm max print width (x axis)
130m max print depth (y axis) reduced from standard 152mm on Simple
127mm max print height (z axis) reduced from standard 152mm on Simple
Max temperature for heater: 90 degrees C / 194 degrees F (about 7 minutes to get to temp)
Construction: Powder coated aluminum, machined aluminum, injection molded and 3d printed
Nema 17 stepper
Small gear: 13 teeth
Large gear: 43 teeth
1.4″ /20 Acme push rod & nut
Heater block hole size: Aluminum ID 29.6mm; Delrin ID 29.73mm
Plunger travel distance: roughly ~130mm
Accepts included 60 ml syringe (29mm ID, 26mm ID)
E Endstop Pin assignments: Requires New firmware listed below
EXP1: Pin 1 = E max endstop ground (black wire)
EXP2: Pin 1= E min endstop ground (black wire)
EXP2: Pin 5=E min endstop positive (yellow wire)
EXP2: Pin 6=E max endstop positive (yellow wire)
Must move “Z-VSEL” jumper on printrboard to 5V… the Z max endstop should be delivered with the black wire moved to the center pin on the wiring plug. If confirmed, plug it into the Z endstop plug, previously occupied by the Z sensor (which you must unplug).
Assembly Required: YES. This is for experts only. You have to take the existing extruder assembly off, mount the paste extruder head, attach the new Z max endstop, and plugin the new wiring to the Printrboard. You must flash your firmware and learn the nuances of extruding whatever material you are using. This will require MUCH trial and error. Getting good results is pretty hard, make no mistake. We love this stuff, but you should be a trail blazer with a lot of patience to embark on this journey!
Reflashing Printrboard with New Firmware: Click to download –> Paste Extruder.hex
Instructions on how to load firmware here: https://printrbot.zendesk.com/hc/en-us/articles/202457834-How-to-Flash-Printrboard-Firmware
Printable file for Z End Stop Mount: Click here to download
Large Gear: Click here to download
ATX Power Supply NOT included. If you plan to heat the material that you will be extruding, you will need an ATX power supply. The laptop power supply is not sufficient to heat the extruder.
Printrboard Pins: Review the installation instructions below. Header pins are required for wiring. The Printrboard currently ships WITHOUT pins on EXP1 and EXP2, which are required for this product. To purchase pins separately, click here.