This is my first post here.
I have a Suncoo 40w laser engraver.
I bought it 1 year ago and i havent changed a thing on it.
It was working fine but a month ago suddenlt it is not recognised by PC and it keeps saying that machine is doconnected.
I have bought a new m2 nano board along with usb key but same situation.
I am suspecting faulty power supply.
Any ideas / suggestions?
Show us a picture of the Laser Power supply showing its connectors.
Do you have a meter to measure the DC voltage on the connector that goes from the LPS to the M2 board?
I checked voltage on the 4 pins cable going from power supply to main board
From left to right:
24 V
0 V
5 V
4+ V
Regarding the fourth pin marked as “L” do you know what is the appropriate level?
I will get a picture tomorrow when i get to the lab but i haven’t moved any connection besides replacing the stock board with identical one
4v should be enough i think in the L pin as it triggers the laser when it is pulled low by connecting to ground(generally done through a MOSFET). Usually there is a threshold that it has to cross to trigger, but of how much though I am not certain. i would guess maybe the 3v logic mark but checking datasheets may prove more accurate.
I tried multiple cables and multiple PCs.
Which measurements on m2? You mean on the blue connector?
I dont think it is a board issue. If i switch of the machine and i move x and y axis manually and switch on the machine, they reset to reference point.
Yes, if the machine homes on reset its not likely the cable going to the M2 and the M2 control is working.
Seems like the common denominator is still the software driver.
I do not use the M2 so my ability to help with the PC connection is limited.
When the LibUSB driver is removed Windows should install the default driver for you when it finds the laser engraver (The laser needs to be powered on for Windows to find it.).
K40 Whisperer should work with your laser controller board but if your board will not work with Laser Draw I suspect it will not work with K40 Whisperer.