Thanks for the advises, not saving screenset was definitely my fault.
I tried to reinstall, with or without HY plugin (which works perfect), and the code is still not running!
Here is a short clip showing what I am talking about not running code:
https://www.youtube.com/watch?v=-t4I...ature=youtu.be
This particular code was done hundreds of times before so it is a good benchmark for me. I am using RhinoCAM 2016 with mach2/3 mm post processor for most jobs, and lately I am trying HSMworks for high speed toolpaths. This code was done with aspire or v-carve, can't remember, but it had worked before with mach3. Later I will try uc300eth again with mach, since I did just an elementary settings both in mach and uccnc (motor outputs, home and limit switches, without any tweaking for now). I will save and post the g-code and profile settings.
P.S. Machine is self made to be some kind of universal milling/routing 4axis mill, with addition of a 15 mm steel base plate I was able even to mill stainless with good cutters. It performed very good, I just sometimes had problems with z axis resonance, but only at particular feeds and speeds. That was the main reason for switching to external controller.