In this instructable, I'm going to show how to build your own 3D printed CNC and all the parts you need to build it, and I will also give you my design and the material needed to make this project

Supplies

1x 12v power supply

1x Arduino

1x CNC shield

3x a4988

4x lm8uu

3x threaded rod

3kg PLA filament

3x couples 5mm x 8mm

wires

wood

5 meters Arkansas aluminum

30x ender 3 bearings

nuts and bolts

3x Nema 17 stepper motor

Step 1: The CNC

this a closer look about the CNC we're about to build together

I designed the whole machine with fusion 360

Autodesk Fusion 360 (Education License) 2020-09-15 12-39-37.mp4
Download

Step 2: Print All Your Parts and Check for Measurement

these are all the parts you need to start working so make sure you print them correctly and not waste any filament cause it's gonna take some time

Step 3: Gather the Printed Parts and Electronics

if you have a 3d printer download the STL files and print them ....this will take a while probably a week but it will be worth it and in the meantime go get the electronic components and follow my instructions cause we're going to build it together

Step 4: Start by the Base

as soon as you finish printing start by the base

first, cut the square tubes to the right lengths (you can find the right measurements in the design )
second, put the tubes into the holes it's easy to mount
third fix the CNC to the wood board (board dimensions in design also)

and that's it you just finished the hardest part of this machine now get ready to the next step

Step 5: Mount the Side Sliders

you have to do this step twice because we have two sliders on the sides but it's very easy to build

get your bearings, nuts, and the 5 mm threaded rod (measurement in design )
put the bearing in the rectangle holes and attach them with the threaded rod from the holes above
attach the blue piece to cover the upper bearings and it will also hold the rest of the machine
before putting the bottom cover put the slider on square tubes and then close them and test if it's sliding smoothly

that's it you're getting there one more step for the base

Step 6: Mount the Connector Between the Two Sliders

in order for the sliders to move they need to be connected to move at the same time

so take that blue piece and insert the 4 square tubes into their places (square tube lengths found in design)

and insert the nuts for the leading screw so it can move the X-axis

connect the leading screw and the motor with the help of a coupling

and by this, we just finished the base and the X-axis

Now we go to the Y-axis

Step 7: Mount the Base of the Y-axis

after finishing the base and the X-axis we need to mount the base for the Y-axis for that

bring the needed parts
cut the square tubes to the right lengths (dimensions in design)
put the square tubes into the right holes

that's it ....the Y-axis base is finished

Step 8: Mount the Top Slider for the Y-axis

we're one step closer

gather all the parts
put the bearings into their places and attach them with the 5mm threaded rod
add the top blue cover
add the side nuts for the leading screw
insert the leading screw through the nuts
put the motor into its place
connect the leading screw and the motor with the help of a coupling
finish the slider with the golden end cap nuts to cover the 5mm threaded rods

and that's your Y-axis is ready..... to the next step

Step 9: Mount the Base for the Z-axis

this the easiest one to mount

gather the parts
mount them as shown in the pictures
and fix them with nuts
that's it

Step 10: Mount the Z-axis

we're getting there

gather the parts
insert the two rods (so it can slide on)
insert the two nuts
insert the leading screw
put the motor into it's place
connect the leading screw with motor with the help of a coupling
add the drill adapter (very easy to mount just slide it in ....check design)
follow the pictures to make sure you did everything right

only one step more for the mechanical build

Step 11: Attach the Drill

this super easy just put the drill and hold it with zip ties or with a thread

I personally prefer the zip ties ...easier to use

Step 12: Electronic Housing

for the electronics part

print the housing
get your parts
attach the housing base to the wood board
insert the Arduino inside and hold it with screws
mount the shield on the Arduino
mount the fan in the right direction in the top part of the housing
connect the two parts together

that's it for electronics ...you're almost there

Step 13: Mount Cables

don't worry there is no complex schematics to follow it's very simple everything is written on the shield just connect the motor with its right port and you are wired haha