Cut doesn't match command

[ReginaldWTedder]

Router travel distance is 50% farther than commands with Candle and Universal Gcode Sender on two different computers. If the command is 100mm’s, the cut is 150mm’s. I think the problem is in the control box. Please help.

[HaldorLonningdal]

You need to alter your GRBL parameter values for X & Y, parameter $100 (X) and $101 (Y).

X axis out of calibration

First of all you need to find your current $100 value, open Easel -> Machine Inspector and in the Console window type: $$ then hit Enter A $-list will appear, locate the $100-value. Say it says =40. Recalibrate step/mm by, assuming you get 252mm travel for a 250mm command: Current $-value * Commanded travel / Actual travel 40 * 250 / 252 = 39.68 Insert new value by typing in Console: $100=39.68 followed by hitting Enter Restart controller to make change take effect. Re-test …

[ReginaldWTedder]

Thanks! Works perfectly!

[AndrewBatty]

Thanks for your time, I am new at this, my first job was way off the mark. It started carving way out of range, So you mention
I need to change the $100 value. I do not have any item saying Machine inspector? I see machine set up? no console window.
So I am lost right off the bat. " $$ then hit Enter A $-list will appear, locate the $100-value" what is all this?

Andrew

[AndrewBatty]

@X axis out of calibration

find your current $100 value

I did find the advanced button on the machine setup, then I found machine inspector. I typed in $$ and I cn see
$100 = 800.00 I see no button saying re-calibrate?

[AndrewBatty]

Is there any videos telling you how to set this thing up? The instructions are vague, like I have done this all my life and it is easy to use. LOL

[WayneHall]

@HaldorLonningdal has the equation above. It tells you how to figure it.