Microfactory Boot Camp - Marking the Bed
Once the printer is built, the print bed has to be fit in place so that it is positioned where the extruder can print on its surface. To do this, we align one corner of the bed right under the extruder nozzle - at the location where the extruder hits the end stops. This marks the limit where the extruder can reach. We then square the print bed from that point.
This short video shows a little bit of this process.