I am busy building a Roubo workbench and added some retractable castors.
My design is an adaption of Carl Holmgren's design that he uses for his power tools, have a look at his video here:
https://youtu.be/7TTnb3TyH5Y
I also used his system for my Thicknesser stand:
https://youtu.be/6UIc-6SEN8c
