cnc made bigger did not respect size,need guide to modify sketch

Projects General Guidance
1

Hi, i magnify an elkmaker small machine ( 40mm x 60 mm area ) to 4 ft x 8 ft, i upload the bachinmaker software, the problem is the final size, by example y draw a 60 mm x 60 mm text area and sent using grbl
the drawing is biger by aprox 1/3
i modify the steps/mm to make it fit, but also the speed is reduced

i believe that the sketch uploaded is for the smaller machine, i am drawing smaller to make it work, but is a test and try

i am interested in know how to modify this size, thank`s

2

You need to set the steps-per-millimetre in GRBL to suit your machine.

...R