CNC Cyclone PCB Factory: boards and other – Part 6
There are a lot of thing that we can add to the CNC, here I select something to show that I think It’s interesting.
I add 220ohom resistor directly to the led.
Variable speed splindle
If you want use a variable speed splindle you must use a mosfet to control It, here an example schema connection.
Mosfet can go very hot, so remember to add heat sink.
You can buy correct MOSFET here
As described I use a transistor to activate some module to prevent error for power consumption.
You can buy transistor here
I use a simple 12v 10A power supply, and I use 78xx to regulate input. I use 7812 to regulate input of Arduino, and 7805 to power leds and module, because Arduino can’t power all device.
It’s important to add heat sink, I use old heat sink of old PC where I do an M3 hole with a screw.
You can buy 5V regulator here
You can buy 9V regulator here
You can buy 12V regulator here
It’s important use correct voltage for signal if you need to do long running communication.
Need more pins
You need more pins to connect all, I create 2 service board to help this.
This boards are very usefully and simple.
Take your case and start to add all:
Remember the schema of wiring connection must be integrated with service board that I create to prevent all the problem I encountered.
To connect all I use a dupont and Header pin, very versatile instrument.
The machine get a lot of vibration so when you made al junctions and you test all, fix all with some hot glue.
I use as enclousure an old ITX desktop case with fired power supply, and the result is in the photo.
In the next part we are going to see settings and how to do first tests.