Mooz 2 - CNC on steroids

Mooz 2 - CNC on steroids

Please read Liability Disclaimer and License Agreement CAREFULLY

Intoduction

The CNC head used on Mooz 2 is OK to be used for milling operations where you remove a layer with a thickness of 0.2mm to 0.5mm at about 90mm/s federate

with tools up to 4mm in diameter.

With the above setting you will get a lot of noise due to vibrations, most of them are due to the poor design and fixation of the CNC head (bearings and weak

fixation are the primary cause).

In order to overcome the issues above i decided that i will give a try to the 500W air cooled spindle found on Aliexpress at a good discount price.

The speed of the spindle above can be controlled using a voltage from 0V to 10V, this feature might be used to control the spindle speed using the Mooz 2 

PCB from the CNC head.

So first thing is to try to understand how the CNC head electronics are working.

Part 1 - Mooz 2 CNC head electronics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The connector used on cable to connect each module to the printer is RJ4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The schematic for the CNC head PCB

This is reversed engineered, so you need to double check before using it

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Below is a chart with the Voltages as function of PWM values (8bits)

 

 

 

 

 

Notes:

1. My guess is that resistor R9 with a value of 254kOhm is used to identify the module connected to the printer.

2. On the LASER module we have a resistor connected to the same 7-8 pins with a value of 220kOhm.

3. Pins:

  1 - 12V

  2 - GND

  3 - HEAT (used on 3D printer module)

  4 - PWM / FAN (used on 3D printer module)

  5 - ???

  6 - PWM (used on 3D printer module)

  7 - ID1 / ADC (used on 3D printer module)

  8 - ID2 / ???

 Pins 1, 2  are used for power on all modules, pins 4, 7 and 8 are the same on CNC and LASER.

Part 2 - Upgrading to 500W spindle

 Using some acrylic leftovers i had from a previews project I tried to make with what i had an enclosure for the electronics and power supply.

  Below is a series of pictures with the build.

1. From left to right we have speed control RED, YELLOW, BLACK; Spindle switch RED, WHITE; Spindle connection RED, WHITE

Power chord BLUE, BROWN and GREEN/YELLOW(This is connected to the power supply enclosure.

 

 

 

 

 

 

 

 

 

 

 

 

2. Assembly pictures

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Final assembly

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. Fusion 360 setup

Because Create g-code for Mooz 2 using Fusion 360 seems that is not clear on how to create a tool in Fusion 360

I have added the images below hoping that will make this topic clear.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. First use video

Right click on the video to get the menu from where you can save the video

 

Your comments or ideas are welcomed.