Hello there @sarahlouise, Happy New Year, thank you for introducing yourself.
To answer your questions, Friday sessions are open and anyone, including members of the public, is free to drop in and say hello, they also form a defined time for members to find each other at the space. There is also an open session on Tuesday.
Members have free access to the space whenever the Boileroom building is open. There are no specific hours for that but they are broadly from around 9:00am (except Wed when it may be later) until it closes in the evening. Evening closing time depends on what is happening at the venue. If there are no events on then it is around 7-8pm or if there is an event then it will be around 11:00pm. Open sessions normally run to around midnight. If there is a requirement to access the space outside of these hours it may be possible to make special arrangements to do so.
Access to the laser cutter is for members only and currently @Cylindric runs the induction sessions, it should be possible to arrange one for a particular Friday session.
I hope that answers your questions, if not, please feel free to ask a follow up or drop in and see us at one of the open sessions.