My 0.4mm nozzle diameter has +0.2mm horizontally expanding (totally trace width will be almost 0.7~0.8mm), hope you can modify yours on onshape.
...Plus
https://cad.onshape.com/documents/a0547f10668d7dd8b0a263fb/w/476a63e956cd13028a497de1/e/4cf1c8aa3ef37a3006f5e5c0
Video:
https://www.youtube.com/watch?v=YDNXlYpdpM8
