Prusa i3 Complete Kit
These are the latest parts and vitamins for the Prusa Mendel Iteration 3. The i3 is Joseph Prusa's latest design and it's currently considered to be in pre-release status. This kit includes everything you need to build a working RepRap and with NWRepRap's free support, you will get it working. The Prusa i3 has an effective print area of 190mm x 190mm x 190mm (7.5" x 7.5" x 7.5"). It can achieve a print height of 0.1mm to 0.3mm and it's accuracy is between 0.01mm and 0.02mm. See below for a complete list of what's included and what you'll need to build your RepRap.
Price: $799.00
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If you order your kit today, we will ship it within two business days via FedEx Ground. Click "Add to Cart" and enter your zip code for an estimate on delivery time.

The nuts and bolts in this kit are metric. We prefer metric but if you don't, let us know and we can create a customized kit, just for you.

The plastic parts in this kit are printed with a density of 70% which is higher than the standard 40% minimum density for RepRap parts. We believe it's important to have higher density parts for a more rigid machine. This helps produce higher quality printed parts. We print all our parts with RepRaps.

We provide a 90 day warranty on everything and we don't ask questions. If a part or component breaks or if you break it on accident, let us know and we'll ship a replacement as quickly as we can at no charge.

Support is free as well and we like to think we're good at it. If you have any questions, call or email us between Monday and Friday (8am to 5pm PST) and we'll be here to prove it to you. You can also take a look at our support page where you might find what you need. Go here for our support page.

All the software for this kit is free and open source. We've created a page with download links to make it easy. Go here for the software.

We have very thorough assembly videos which will guide you through the entire assembly process. Go here for our assembly videos.


Here's a comprehensive list of what's included in this kit:
  • Fully Assembled & Tested Electronics
    • Ramps 1.4
    • Arduino Mega 2560
    • Pololu Stepper Drivers
  • Grained, Anodized, & Tapped Aluminum Frame
  • Grained, Anodized, & Tapped Aluminum Bottom Plate
  • NEMA 17 Stepper Motors (5.5KG-CM)
  • J-Head Hot End (0.5mm 1.75mm)
  • J-Head Aluminum Mounting Plate
  • 30mm 12v Fan
  • GT2 Timing Belts
  • GT2 Aluminum 16-20 tooth Pulleys (5mm bore)
  • MK1 PCB Heat Bed
  • Heat Bed Thermistor with PTFE
  • Tempered Glass Print Plate
  • LM8UU Linear Bearings
  • 608ZZ Bearings
  • 624ZZ Bearings
  • Hyena Hobbed Bolt with Locknuts
  • Hot End Thermistor with PTFE
  • Hot End Heater Resistor
  • 30 Amp Power Supply
  • AC Power Cord
  • USB Cable
  • 24 AWG Wire - End Stops
  • 22 AWG Wire - Hot End, fan & Thermistors
  • 18 AWG Wire - PCB Heatbed and PSU
  • Mechanical End Stop Switches
  • Extruder Springs
  • Heat Bed Springs
  • Wire to Board Crimp Housings and Receptacles
  • Paper clips
  • Zip Ties
  • Z Couplers
  • Splice Connects
  • M3 & M4 Hex Keys
  • Wire Wrap
  • Prusa Mendel Iteration 3 Plastic Parts
    • X End Motor Mount
    • X End Idler
    • X End Idler Arm
    • X Carriage
    • X Endstop Holder
    • Y Frame Corners
    • Y Motor Mount
    • Y Idler
    • Y Belt Holder
    • Y Endstop Holder
    • Z Axis Motor Mounts (2 Parts)
    • Z Axis Top Supports (2 Parts)
    • Z Endstop Holder (2 Parts)
    • Electronics Back Plate
    • Extruder Body
    • Extruder Guidler
    • Extruder Large Gear
    • Extruder Small Gear
    • Extruder Adapter

  • Rods, Nuts and Bolts
    • M5 Threaded Rods (Z-Axis) (295mm)
    • M8 Threaded Rods (Frame) (208mm)
    • M8 Smooth Rods (X-Axis) (370mm)
    • M8 Smooth Rods (Y-Axis) (357mm)
    • M8 Smooth Rods (Z-Axis) (320mm)
    • M10 Threaded Rods (Frame) (380mm)
    • M3 10mm Bolts
    • M3 14mm Bolts
    • M3 16mm Bolts
    • M3 18mm Bolts
    • M3 20mm Bolts
    • M3 25mm Bolts
    • M3 30mm Bolts
    • M3 60mm Bolts (Extruder Guidler)
    • M3 Lock Nuts
    • M3 Nuts
    • M4 20mm Bolts
    • M4 25mm Bolts (Timing Belt Idlers)
    • M4 Lock Nuts
    • M4 Nuts (Timing Belt Idlers)
    • M4 Washers
    • M4 Fender Washers (Timing Belt Idlers)
    • M5 Nuts (Z Axis)
    • M8 O1 Smooth Rod E-Idler 18mm
    • M8 Nuts
    • M8 Washers
    • M10 Nuts
    • M10 Washers
    • M10 Fender Washers

Required Tools and Supplies
  • 1.75mm Filament
  • Ultra Copper Silicone
  • 2x 17mm Open End Wrenches
    • Or Crescent
  • 2x 13mm Open End Wrenches
    • Or Crescent
  • 7mm Open End Wrench
    • Or Small Crescent
  • 5.5mm Open End Wrench
    • Or Small Crescent
  • 2.54mm Crimps
  • Splice Crimps
  • Soldering Iron and Solder
  • Small Pliers
  • Wire Strippers
  • Small Phillips Screwdriver
  • Small Flathead Screwdriver
  • PTFE Tubing or Heatshrink for solder joints
Optional Tools and Supplies
  • 10mm Kapton Tape
  • 40 or 50mm Kapton Tape
  • Part Organizer

You must be able to install software. We assume no liability. This is an open source project. We are merely providing you with the components you need so you can pursue this open source project. Please visit reprap.org for complete information regarding the RepRap 3D printer.