Graber i3 Tutorial - Finished !

3D printing, also known as additive manufacturing (AM), refers to various processes used to synthesize a three-dimensional object.[1] In 3D printing, successive layers of material are formed under computer control to create an object.

These objects can be of almost any shape or geometry, and are produced from a 3D model or other electronic data source. A 3D printer is a type of industrial robot.

After this Wikipedia preview we can start work !

  1. Files for the laser cut - graber_lasercut
  2. Bill of Materials
  3. Where and what buy:
    • RAMPS (electronic, China) - Big screen - Small screen
    • A4988 (electronic, China, some of drivers can screw up) - Here
    • Hotend (extruder, China) - Here
    • MK8 (extruder, China) - Here
    • Cooler (extruder, China) - Here
    • HeatBed (extruder, China) - Here
    • Gear and Belt (to X and Y axis, China) - Here
    • Endstop (X,Y and Z axis, China. Not tested yet !) - Here

Ok, the total price is:

What How much $
RAMPS 1 28.5
A4988 (optional) 1 5.82
Hotend 1 4.68
Cooler 2 0.88
Mk8 1 0.82
Heatbed 1 8.1
Gear and Belt 1 5
Endstop 3 to 6 0.37
Total 54.17
  1. Ok, now in Brazil:
    • MDF 6mm (810x460mm) - Here
    • The glass (3 or 2mm - 215mmx200mm) for Heatbed.
    • The smooth rods (bill of materials) for X,Y and Z. - Here
    • Motors : 4 of 3Kgf (axis) and 1 of 4Kgf (Extruder). - Here
    • 220V to 12 V (20A) - Here

Total price:

What How much R$
MDF 6mm (810 x 460mm) 1 25
Glass 1 10
Smooth roads 6 110
Motors (Nema) 5 190
12V 20A 1 50
Total 385

The total of everything is R$ 601 (Reais) or $ 151 (Dolar).


We need 3 kinds of software (ITS FREE):

  1. The Slicer
    • Converts the model into a series of thin layers and produces a G-code file containing instructions tailored to a specific type of 3D printer. This G-code file can then be printed with 3D printing client software (which loads the G-code, and uses it to instruct the 3D printer during the 3D printing process).
  2. The graphical interface - Pronterface - Repetier
    • Interface to communicate and use the 3D printer.
  3. Firmware for RAMPS - All of them (I am using Marlin)
    • Software to burn the Arduino Mega.

Where am I ?

Now I am making some moving testes of the axis, speed and acceleration. Until now everything is ok, just need to finish the extruder and start to print !

It's working !

After some time in Campinas-SP (Brazil) doing my internship on Intel, doing some cool stuffs, I am back to my city and my 3d printer .

Willian (The guy with the cool blog in the top header) was working with his own 3d printer and have done a extruder to me (You can see the photos below). After one day wiring the things and some tests, the printer is alive !

To make your printer a cool IoT device, add a respberry with Arch linus, wi-fi adapter and Octoprint to print and view the progress in your browser in computer or cellphone.

Update [03/2020]

I lost a bunch of photos from my old printer in my old server, here you can check a bunch of photos that I got from some friends from my printer.