Open House is Saturday 10/6 from 10 to 6. Workshops, tools and classrooms are not available for general use during this time, nor during the various set-up periods on Saturday morning.
In addition, many committees are doing clean-ups and prep on Friday evening 10/5, so equipment is not available during that time either. If you have a project that you plan to do Friday afternoon/evening and before Sunday, you should check with that committee to see if the equipment is available.