The BLV MGN Cube ist most probably of the best printer kit for the money you can get: CoreXY, IR Sensor, frame… But a word of advice, it is not easy to build and not for beginners.
In the process of building the BLV MGN Cube, I went through a lot of different process that are not easy to find on the internet and made a building log. Here is the all information I can share with you. Happy building.