The 'non-commercial' license means no one other than the creator can profit from these designs.

This means no one else can sell products or services so the ecosystem around the product will be limited to just the original company.

It does not stop you buying the printer and using it. It means there will never be anywhere else to get spares or service so you are relying on their continuing good behaviour, effort and existence (with no one else is allowed to compete), a monopoly. As I understand it will be refillable with third-party ink though.

This approach annoys some as the company seeks to profit from the claims of being 'open' whilst not being truly open as (in this case) no one else is open to offer commercial services for the printer. It is slightly better than a truly proprietary printer as at least we can see the designs.

You could decide this is ok for you as it stands. They could also change the license in future to drop the non-commercial restriction.