We need more people involved in helping to maintain the laser cutters. First thing to do would be to email all members to see if anyone is interested in learning more about the lasers and being a trainer.
It's possible many people think it's too complex to deal with and lack the confidence so need to explain things to people when they get their initial training so they are more comfortable with it.
If we lack the interest from people: Would it be possible to offer incentives to Engineering Students to be involved in maintenance? Students have much more time than other people, and this is directly related to Engineering students field of study so they would be more interested.
Once interested people are found, train them to be trainers, and schedule people to take care of regular maintenance.