Spoica Industries CNC V1

This is my take on a CNC inspired by the Dremel CNC, MPCNC and many others.

I'ts pretty rigid considering the frame even if not perfect.

It uses woodscrews for a lot of part mounting.

The project assumes some level of skill. It's not exactly a step by step unfortunately as I've already built it some time ago.

I hope I covered everything!

3D Printed parts:

https://www.printables.com/es/model/222034-spoica-industries-cnc-v1

Hardware:

1 550x700mm aprox. solid and flat sheet of wood (I used a cabinet door)

1 300x400mm spoilboard

Something to rise the spoilboard 40 to 50mm

3 12x400mm linear rods

2 12x150mm linear rods

10 12mm linear bearings

2 20x600mm steel pipe (Courtain rod in my case)

12 3D printer V wheels

2 600mm T8 8mm lead trapezoidal leadscrew

1 400mm T8 8mm lead trapezoidal leadscrew

1 200mm T8 8mm lead trapezoidal leadscrew

4 T8 8mm lead nuts

6 608zz bearings

2 8mm rod locks

GT2 20 60 kit

12 M5x30 screws and nylon nuts

ER16 Kit

BITS! You need to account for those!

Assortment of M3 and Woodscrews

Grease for linear bearings and leadscrews

Big PVC L profile is what I used to hold the electronics

Electronics:

4 Nema17 2A steppers

Lekn C1 controller / CNC V3 GRBL Arduino shield and Arduino Uno (When I tried the shield it was unreliable so I upgraded to the C1)

4 DVR8825 Drivers

24V 4A PSU for the electronics

48V PSU for spindle (I needed 360w)

52mm Spindle (Mine is the 300w version)

48v Speed controller for the spindle (There are Kits for the spindle)

Cords and cable

Case fans

E-Stop

Others:

Zip-Ties

Hand tools

Wire loom

Glue

Insert the greased linear bearings.

The bearings are greased by putting grease on the shaft of a screwdriver and running it on the inside in a circular motion. They ussualy need the grease if chinese

In the photos you can see how the nut goes in and is fixed with a wood screw.

The 8mm locks are used to creare a fixed position for the 8mm leadscrew with the bearings in between.

The transmission then is installed and tensioned.

We then mount the spindle.

Here we continue by building the X axis as shown, mounting the Y supports meassuring a lot and maintaining squareness and then putting the Y rods. Then we put the axis together and mount the leadscrews and motors.

The spoilboard will need to be rised around 40 to 50mm plus the spoilboard. I used some lenghts of wood the right width and countersunk the screws a lot

Here is where I lack a lot of pics.

The wiring is pretty simple but I do not recommend you do it if it's your first project.

I hope all that I've said and shown are enough and enjoy your machine

The red module is my step up as I use a 24v PSU and up the voltage for the spindle

I used it for wood and aluminium. It's slow but it works. You can always try for yourself to go faster, I'm a conservative guy in that aspect.

The accuracy is ok and best of all it's rigidity for being plastic.

This are my notes on this machine:

+Flattening wood:

6mm 2 flute endmill

1000mm/min feed

150mm/min plunge

5mm stepover

0.30mm depth

+Cutting Wood:

4mm 2 flute endmill

575mm/min feed

150mm/min plunge

0.65mm depth

+VCarve wood:

V90° 6mm 3 flute

250mm/min feed

125mm/min plunge

0.60mm depth

+Engraving aluminium:

V60° 6mm 3 flute

400mm/min feed

100mm/min plunge

0.125mm depth

V20º 3.175mm 1 flute

200mm/min feed

100mm/min plunge

0.125mm depth

+Cutting aluminium:

4mm 2 flute endmill

350mm/min

110 mm/min plunge

0.125mm depth