A while back, I purchased a digital K-40.
Instead of testing it as it came out of the box (as I should have) I immediately started installing all the suggested safety equipment and analog amp meter, that I saw on YouTube.
I also removed the stock bed clamp and cut back the exhaust vent.
This K-30 has a ribbon cable and a wires/plug for the Y axis.
The computer (actually 3 different Win 10 computers and one XP) wouldn’t recognize the M2 board through K40 Whisperer or Windows Explore.
USB cable is proven.
When I fired it up it would sometimes “home” (sometimes not) and always chattered loudly at the end of travel.
I ordered and installed a Cohesion3d replacement board and LightBurn software.
Now, upon powering up, I get all five LEDs to light with two flashing green and the computer recognizes the board.
Now the laser head moves to the lower left, but still chatters.
Nothing else works except the laser test and all the meters.
I’ve tried the “Move” buttons and laser location on the drawing and tried to get it to cut a line.
No Luck !!
It’s kinda turned into a thousand dollar paper weight :>)
Any help will be greatly appreciated,