DIY A 3D Printer

Materials requested:
Transmission Part:
1,42 stepper motor x 4
2, GT2 drive timing belt x 3
3, GT2 synchronous wheel x 3, 16 teeth, which can be able to fit on your motor.
4, F623zz flange bearing x 6     
Parts of extruder kit:
*1,608 bearing x 1, responsible for wire feeding
*2, biting wheel x 1
1, the extrusion head 1.75mm / 3mm + horseshoe fixed aluminum block
2, cooling fan x 1 * is very important
3,3D printing supplies x N
4, PTFE tube x 1               
Circuit part:
1, arduino mega2560 x 1
2, mega2560 used ramps1.4 expansion board x 1
3, A4988 stepper motor driver board x 4
4,12V power supply current is greater than 6A x 1
5, Limit switch (normally closed) x 3
Others:
Three 60cm long wood/aluminum
Some wood
Strong magnetic effector x 1
Block x 3    

1. The three pieces of wood and other materials are enclosed into a triangular prism. The three pieces of wood must be enclosed in equilateral triangles. I use the base of the flower pot as the bottom.

Because we are doing 3D printers, all data must be calculated + accurate measurement (vernier caliper).

The power supply is here, I don't know if it is 10A.

Mega2560 and ramps1.4 expansion board together + A4988x4, using Marlin firmware.

2. Install the synchronous wheel and the extrusion wheel on the motor

3. Install the extrusion head onto the effector.

4, then make a block and install it with a belt of appropriate length.

5.Making parallel arm, need to make 6 pieces, pls see in the pic.
The error should be controlled within 1MM.

6. Install the power and motor

7，Wiring, as the pic showed

8. Install the block and effector, and install the pulley on the top of the three shafts.

9.The cooling fan.
By the way, the fan here can't be saved, otherwise it is easy to plug.

10. Next, install the limit switch to the highest position of the three blocks. The three limit switches must be kept on the same level. I used the normally closed switch, if it is normally open, it needs to be modified in the firmware.

11.Extruder kit.

12, In order to prevent the block from shaking, and to keep the balance of the 3D printer, I found 3 plastic cards to replace the kossel800 solution, make the card into a slider, and then fixed with the blocks.

13.Finally, remember to put a glass plate at the bottom of the printing platform.
Congratulations, you have already got a 3D printer.

Try to print now.

There was something wrong with the extruder when printing, so there were some defects in the place.
Next ready to try to print this.

Source From: Geekfans
Translated By: Utsource