The maker spaces in my area went through some evolution - starting out with donations of space, cash and equipment. Then a realization that there are operating costs after the donations (electrical permits and installations, liability insurance, heat and electricity, ...).
Then a surge of new members once the place finally opened. The owners quickly realized the new members needed much more training to keep them safe and prevent them from damaging equipment (and wearing out/damaging bits, blades and anything else.
Then, after an extended closure and development of training materials and training program schedule, doors were reopened to facilities with higher monthly membership costs. Training classes were few and difficult to schedule, lots of idle equipment as members waited to be trained - and paid monthly membership dues as they waited to be trained - and stopped showing up as they waited to be trained - and stopped their memberships before they were ever trained.
Of the five started over the last 10-years, the one I know is still open is barely open. It is open on Friday evenings to show the facilities to potential new members. The fees are high, the equipment is slim, and the facility has more-or-less turned into a clubhouse for about 10 members to use as drinking and BS space to get away from their wives and kids a couple nights per week.
I thought it would be a good idea too but the economics just don't work out for most people (more than they want to spend because commercial space, liability insurance, equipment consumables are expensive. Also, clients/customers have the perception that they can make something at a much lower cost than they can buy something. Once the reality hits about how much their project materials will cost, how many odd-end supplies they will need (glue, brushes, paint, solvents, sand paper, fasteners, tape, ..) on top of the wood, hinges and handles, they start cringing. Other sites offering 3D printing maker services, the time and know-how required make people cring. First, they print a pre-designed project file from thingaverse.com and get pissed off that they have to wait to get machine time, then get pissed off that the first two attempts to print have failed for one of the many reasons 3D prints fail - then, when they finally have their herringbone gears, lattice, flower pot, stealth fighter, (or what ever), printed and in their hand, they get pissed off when they realize how much work it is to learn to create a 3D CAD object of their own.
So, I think it is a great idea and let me know where your shop is located, I would love to join.