Hello, in this instruction, I will show you how to make a 3D-Printer for less than 60€ (maybe the cheapest in the world)
I'm 16 Years old and I made everything by myself.
This 3D-Printer, works with the cheapest motors on the market (28Byj-48), for the electronics I use the Ramps 1.4 . It also has an all metal hotend for around 5€.
Buildsize : 10x10x10cm
Travel speed: 20mm/s
Update: 27.05.2016: Added new Files for Nema 17 Motors (Step 13)
Step 1: Parts: Mechanic
-1x 30x34cm (Baseplate)
ca. 2 €
-12x LM8UU Aliexpress - 5.58€
-2x GT2 Pulley + 1m GT2 Belt Aliexpress -3.33€
-10x 624 Bearings Aliexpress 2.26€
-1x Mk8 DriveGear Aliexpress 0.89€
-1x PTFE tube Aliexpress 1.97€
8mm Smooth rods:
- 2x 22cm
- 4x 17,5cmkleinteileversand
Local Hardware Store
-1x M5 threaded rod
-2x M5 hex-nut
-8x M3x16mm screws
-6x M3x 25mm screws
-4x M4x45 screws
-2x M4x 60 screws
-4x M4x20 srews
-10x M3 hex Nuts
-12x small woodscrews
In Total: 17€
Step 2: Parts: Electronic
-1x Arduino Mega 2560 + Ramps 1.4 + 4x A4988 Aliexpress 16.87€
-4x 28byj-48 Steppermotor Ebay 1.44€
-1x Nema 17 (I found my Motor in a old desktop printer, which I found on the scrapyard)
-1x E3D-V5 Aliexpress 5.00€
-1x E3D-V6 Aliexpress 11.00€
In Total: 27.63€
Electronic + Mechanics= 44.63€
Step 3: Printed Parts
Please download the latest files from Thingiverse
1x "Hotend Clamp"
1x Bowden Extruder by benni (You can download the Files at the bottom of this step)
###If you have problems with getting the printed parts, feel free to contact me :-). I can print them out for you.###
Step 4: Modify the 28BYJ-48 Steppermotor
To change the 28BYJ-48 from unipolar to bipolar, you need to open the blue plastic case.
After that cut the the connection and desolder the red wire (see pictures).
Then solder the wires in this order:
After this hack, you can connect these motors directly to Ramps 1.4.
Step 5: Y-Axis
At first, you need to glue the wood plates together.
After that, place the printed parts " Motor ", "Z-Motor" on the wood plates.
Then you screw the printed parts down.
After that you put the motor in it, then the LM8UU.
For the motor, you put the pulley on it and connect the 624zz bearings.
For the LM8UU, you use some zip ties.
Then you put the two 17,5cm 8mm smooth rods in it.
At last you assemble the belt to the "Y-ends" and mount the endstop.
Step 6: X-Axis
For the X-Axis, you need to :
- put two M4x45mm into the "X-End"
- connect the motor, like you see on the pictures
- thighten the belt and mount the endstop.
- connect the hotend with two M3x25 Screws + Nuts
Step 7: Z-Axis
To assemble the Z-Axis, you need to:
Put the LM8UU into the "X-Carriage" + " X-Ends"
Then put the "X-Ends" + "X-carriage" with the 17.5cm smooth rods (X-Axis) and 21cm smooth rods (Z-Axis) together
After that you screw the threaded rod with the motor together.
Step 8: Make the Printbed
You drill four 3mm holes in to the 20x13cm wood plate.
After that you screw four M3x25 screws in it.
Step 9: Put Everything Together
Step 10: Connect the Electronic
Connect the electronic, like you see on the picture.
Step 11: Firmware
Here is the latest Firmware for the Cherry 3D-Printer.
- This time I'am using the latest Repetier Firmware 0.92.8.
- I enabled Eeprom so you can easily change basic parameters
What you need to do:
- Upload the pre-configurated firmware to your arduino mega 2560
- Then open Repetier Host, go to the top left corner, open configurations and then you can load the Eeprom file with all the important parameters
Where can I adjust the parameters?
- If you have some basic parameters to change (steps per mm, feedrate, acceleration...), open your Repetierhost, and go to Configuration --> Eeprom
- For other more advanced settings, please visit the Online Config Tool from Repetier
Step 12: Photos From Print
After some calibration, I have printed a good 1x1x1cm calibration cube.
During the calibration, I found out, that when the motors get too hot, I have extremly layershifting.
So you need to set the A4988 to 1/16 microstepping and adjust the current, to a minimum.
Also play a little bit with the backlash in the repetier-firmware.
More pictures from print coming soon :-)
Step 13: Nema 17 for X,Y and Z Axis
I made some new parts for the X and Y Axis, that you can easily attach Nema 17 Motors to your Cherry-Printer
For the Z-Axis, please use the files from CrimsoRo who made a great job :-)
You can download the files for X and Y below.