Should be ok as long as it does not become a regular thing. Please make it off-peak hours. weekdays are usually good or late-night/early morning. I belive you can through your profile.
I was wondering if there is a limit to how many blocks of time in a row you can sign up for in a day some of my projects have been a challenge to get done in 4 hours and I was told there was a limit so as not to stop others from having access to the laser .
Also is there a way of canceling book time for a room if other important matters should arises