BLV
BLV is not a manufacturer in the usual sense. It is the open-source design house of Ben Levi, whose community-driven printer projects, the CoreXY MGN Cube chief among them, are shared as build plans and bills of materials rather than finished products. You source the parts, pick your electronics, and build it yourself.
The payoff is a high-performance machine that's endlessly moddable and genuinely yours, backed by a deep community of build logs, forums, and shared mods.
Every BLV build we have tested
Our evaluation of BLV
BLV is the work of designer Ben Levi, who releases open-source 3D-printer designs to the community rather than selling assembled machines. The flagship MGN Cube is a high-performance CoreXY shared as a documented build: you buy the bill of materials from third-party vendors, choose your own electronics and hotend, and assemble it yourself.
Because there's no factory behind it, the experience lives and dies by the community. Build logs, GitHub wikis, and Discord servers are the real "support," and they're excellent. The trade-off is obvious: no warranty, no turnkey setup, and a build that demands real time and skill.
For makers who want a printer that's theirs down to the last bolt, and who enjoy the build as much as the prints, BLV designs are some of the most rewarding around. For the full picture on the model we've built, read the review above.
Open-source, community-backed CoreXY designs for builders, not buyers, with performance that rewards the effort.