The Mercenary is an Open Source FDM 3D printer currently in development.
It's a Core XY machine build with as many easy obtainable metal parts as possible.
Currently it only uses 5 mechanical printed parts.

It is easy to build and the parts can easily be sourced.
If it gets enough attention i will start creating guides and BOM's, aswell as uploading the few needed STL's.

I want to share the technology behind the printer, as some aspects are quite unique. For example it sports a belt driven Z axis on a single motor, the Z stays in Sync and the bed does not move when power is cut.

Designing and building this machine has cost me a lot of energy (And money) over the last years.
I did quite a few revisions of the printer, but now it's time to come out with the design.

Feel free to follow me at https://www.facebook.com/3DMercenary

Currently it uses a 340x340x6mm cast plate but i have a 412x412x8mm ready with Custom 230v Heater and a custom Pei Sintered Spring sheet.

Printer features:

412x412x450 mm Print Area.
Aluminum cast tooling plate as printbed, the most straight plate you can get.
3 point bed leveling.
Belt Driven Z axis: Does not go out of sync, bed does not drop even a bit when power is cut.
Core XY
200W Silent PSU + 850W 230V bed heater using a Solid State Relay.
Direct Drive and Bowden, still testing what would be best.
Will be fully enclosed with PolyCarbonate
Easy to build and replicate