Scale Issue

[Fender_Fish]

Hi guys,
Im new to using a CNC machine so please excuse me if this is a stupid question.
I have set up a new PC with Fusion 360 and UCCNC. I have the UCCNC post processor installed and it drives my machine when I use the arrow keys. However when I load G Code into UCCNC after creating the tool paths from a imperial scale model in Fusion, the image looks correct in the geometry window, but when I run the program the router head moves to the correct point on the material, but then seems to be trying to route a tiny component. Its certainly not routing the component I designed in Fusion.
It looks like I have a scale or conversion issue somewhere, but I don't know where to look. Any ideas?
Many thanks, Pete

[ger21]

If the machine is configured in metric units, then your g-code needs to be in metric units as well.

[Fender_Fish]

Hi Gerry,
I have modelled the part in inches and out put the Gcode in inches. I think that I need to somehow scale UCCNC so that the steps match an inch?
Not sure if this is true though?
Cheers
Pete

[ger21]

If UCCNC is configured in mm's, you'll need to change it to inches, or create a separate profile for inches.
You can't mix inches and mm's in UCCNC.

[ger21]

If you are using the latest test version of UCCNC, you can set axis scaling as an alternative, but your feedrates will likely be too slow?