Claudio Prezzi

What do you mean with "create overlapped results"?

I work with Win10 but never got this error related to overrides or other "real time" commands. It just happend sometimes mid job with smoothieware, but not anymore with grbl-LPC....

According to the screenshot, it's not a firmware-**cnc** version. We need firmware-cnc! And what are those two Ellapsed lines? Is this a new special smoothie firmware?

Smoothieware should send a second line `CNC Build 3 axis` after the first line, but probably this is only visible at the server console. I will download and test the...

This is how it should look like when using the right firmware-cnc.bin: 

Please advise they should use this firmware: https://github.com/Smoothieware/Smoothieware/blob/edge/FirmwareBin/firmware-cnc.bin

@domenic-d Can you provide a file and the settings which caused the OverlapedResult error?

I was able to replicate the OverlappedResult error when using a cheap 1.8m USB cable, while it worked flawlessly with a good quality 1.8m cable or a standard blue 0.5m...

Unfortunately most users with Smoothie or C3D boards do not have a 5V supply.

Ok. I was testing with the Cohesion Remix but without external power connected. If I connect the external 12V supply, the board voltage increases to 4.8V and it works also...