Components don't fit?

[TheSteveMann]

This is my first DipTrace project. I imported a library for the ESP8266 NodeMCU module. I had few problems capturing the schematic of my project, a daughterboard for the RC522 RFID module. The problems arose when bringing the components to the board design. When I made the board cutout a rectangle 60 x 39mm, which is the size of the RC522, the NodeMCU was huge in comparison. The NodeMCU footprint should be 48 X 25mm, but in my board design it is almost as large as the PCB it is supposed to go on.

So, where did I go wrong? Is the library for the NodeMCU on GitHub the wrong one?

[Alex]

There are plenty of modules with ESP8266 and development boards with the module onboard. It's easy to mix up in all of them. Thereofre exact part number will help to find datasheet and check dimensions.

[armeddingo]

Most likely, the NodeMCU footprint you imported was created using mil units and DipTrace interpreted it as mm — making it 25.4x too large.