Laser control

Mostly Printed CNC - MPCNC Advice
1

I am looking to install a LA03-3500 450nm 3.5W Blue Laser Module With TTL. This is using a 0~5 VDC TTL control. And I get that i can re-assign the FAN output pins to 5 VDC max.

But could I also just use a Variable DC to DC controller. Using 12 VDC out into 5 VDC into the laser controller? I don’t really want to have to re-flash my Ramps firmware when I switch back and forth from using the router and laser unit.

 

Thoughts?

Links to items:

https://www.banggood.com/450nm-3500mW-3_5W-Blue-Laser-Module-With-TTL-Modulation-for-DIY-Laser-Cutter-Engraver-p-1103261.html?rmmds=search&cur_warehouse=CN

https://www.banggood.com/DC-DC-Step-Down-Power-Supply-Adjustable-Module-With-LCD-Display-With-Housing-Case-p-1038740.html?rmmds=detail-top-buytogether-auto&cur_warehouse=CN

Thanks

 

 

 

2

Im not a laser expert, but isn’t there a command for changing one of the aux pins? It just needs to be pwm, I think.

You can bump the 5V to 12V with a simple transistor. I never remember the terms, but some googling should help.