That is a really, really creative a neat idea. I applaud your ingenuity. It brought a huge smile to my face to read that, super clever.
However, despite just how cool it is, it has a lot of practical issues. First would be liability, depending on who owns the equipment (maybe your school or a sponsor) you’d be looking at huge equipment liability. Even if it is all your own, you’ll have to accept that a stunt like this would nearly guarantee tools breaking (because of lack of supervision), and leave you exposed to a relatively massive chance of theft.
Another form of liability you’ll be exposed to would be health liability. Mistakes happen, and without a trained adult there watching the student all the time, the risk of a student cutting their finger off by accident is too high. I mean, simple things like forgetting the Chuck in a drill press could be catastrophic, and a decently probable occurrence when training new students without supervision.
I would also worry about equity issues between students. Some families just won’t be able to host a trailer full of tools at their house for a week, will these students just be out of luck?
Finally ,what if a student doesn’t have the innovative to get these tasks done on their own? As most mentors probably know, getting kids enthusiastic about mechanical training/safety training can be cumbersome as all get out. Now I need to get them to do it on their own accord? Yikes.
I really hate to be a party pooper because this idea because it is really cool, but when your talking about a program like robotics, with expensive and dangerous equipment, it’s just not super practical in this specific application. Though I must admit, this idea has already gotton me thinking about other similar applications during this pandemic era (but that’s the entrepreneur in me ).
Why does your team chose to do these trainings over the summer? Is it possible you replace them with other trainings/projects in the meantime, and move them till when school eventually starts?
Beyond that, I’d say a better bet would be to just set up a central location with all the tools necessary, and have kids sign up to come and learn one on one with a mentor. For most places in the country, that would be well within safety guidelines, and would be exposing the students and mentors alike to very minimal amounts of risk (given proper cleaning and PPE). If you need to do these trainings now, this is how I would do it.