New Build, Aluminium Frame Router/Mill

[Davek0974]

Thanks Jazz, I have some updates..

This seems to be a PSU issue believe it or not!

The BOB is powered from a little 15v SMPS, the sensors are powered from the BOB which has a DC-DC converter and puts out 12v.

First test was to put a sensor on my variable bench PSU, they worked perfectly! Clean on and off LED - perfect.

So i tried running the sensors direct from the 15v PSU - these are NPN so supply voltage does not affect the output signal and the 0v in/out is common on the BOB - result was that it worked ok UNTIL I took Mach out of reset when the flickering returned - baffled!

Next i tried running the BOB from the bench PSU - perfect result and i could even enable the limits (on one axis anyway) and it all worked as I first expected it should.

So - do we have a duff PSU, are these sensors sensitive to SMPS output?
I am not sure what to try now - baffled.

Maybe add some uF to the output of the supply and maybe some filtering?
I might get the 'scope out and see whats on the supply.

Get a different PSU? (this one came from CNC4YOU as did the BOB)

Here's another oddity - the plasma always wipes out the radio as soon as the drives are enabled, now it seems this build does the same - as soon as the drives kick in, the radio gets washed out.

Both builds use SMPS and all parts came from CNC4YOU. Food for thought.