Bjack795:
Nothing is too expensive, is just not the right price, ahahah.
I will buy a project box or a 3d printer, the Anet E12 is 100€ less expensive than printing two cases and has the capability of (30x30x40)I don't know if I want to spend so much money but surely not for two pieces of plastic.
earlier in the thread, you mentioned injection molding. Injection molding must be done on a very large scale to offset the capital cost. Even if you don't buy an injection molding machine with a dryer, take-out robot, end-of-arm tooling, conveyor etc... Just the mold alone can easily run $50,000.00.
Vacuum forming is taking sheet plastic and drawing it over a mold. tooling for this can be less than 1000, but still out of the ballpark for a single unit. If you are doing any volume, but not enough to justify injection molding, vacuum forming might be the way to go.
For small runs, 1-1000 units, 3D printing requires no molds, just programming. This is why it's cost effective to make products of high quality in small batches. Beyond 100 units, fabrication time, and material cost might make vacuum forming the way to go.