Bulkman Cnc Trouble with Mah 3

Hello
purchased a Bulkman Queenbee Pro
Having trouble getting it to run with Mach 3
it jogs smooth on all axis but will not hold position it is jerky when running G Code
when trying to set the steps it adds steps alot from 5 mm to 80mm when adjust the numbers given it makes it worse Iam new at this but here are the settings I have so far any advice would be great


UC300 Digital Dream controller, TB6600 micro stepper drivers, Mach3 version R3.043 Windows 10.