Main project link on hackaday.io
The Monoprice MP Select Mini is the best 3D printer for the money, with one problem: you can't buy replacement hotends. Hotends are consumables, and eventually the hotend on this $200 printer will break.
Right now, the solution to a broken hotend on this printer is to spend another $200 to buy another printer. Spending $200 to replace a hotend is absurd, and any company that does that will quickly go out of business.
The solution? A 3D printed hotend adapter for the E3D V6. This should be the first thing you print on the MP Select Mini.
The print has been tested, it works. You'll need some M3 nuts and M3 socket head screws (M3 x 20mm or thereabouts).