I've just printed it out at work on an HP Laserjet from Inkscape using the SVG file, and the measurement is 106.5mm, so something is working at least.

Hi, I've been trying to design a piece which will eventually be laser cut into perspex but I'm getting some odd things happening in the size of my design between devices. One particular part of the design I've measured between two parallel paths and in Inkscape the measurement is 106.5mm. When I sav...