I've been working on and off this project for a long time now. My Monster Kossel design has had an evolving target over time - the original plan was to get a Delta printer that could print bigger than the Mini Kossel kit I'd started with (170mm diameter bed, 240mm vertical limit). So I went big. Significantly bigger than the Kossel-XL. Hence the name, it's a bit of a beast to see a machine with a 70cm equilateral triangular footprint that stands a meter tall on your desk
It's been my pet project for the last 6 years now, and here's the target feature list:
- Enclosed build volume (for advanced material printing)
- Air filter (to keep the air relatively safe - I don't have a garage or basement to leave the machine in)
- Fast (who wants to print as slow as a default Creality machine?)
- Reliable (when you want to use a tool, it has to just work)
- Direct extruder
- Remotely mounted extruder motor (not a Zesty Nimble, no flexible shaft, custom telescoping torque shaft of my own design)
Version 3 though, I realized that I was making not just a file for a unique printer size, but instead for a whole large delta printer platform which should be parametric. So I learned FreeCAD for that express purpose. FreeCAD was on my radar anyway, so off I went watching tutorials and trial and error with the 0.19 pre-releases at the time.
But because it's my first FreeCAD project, I really need some feedback before I start my next spurt of work on it. What could I do better with the processes to make the whole design more robust? How do I make things better parametrically? I'm not afraid of having to potentially start over from scratch for several of the elements, but I need to know what to fix... And also get a bit of a better understanding as to what assembly plugin is interesting in the context of a 3D printer with both static and dynamic linkages between parts. I want to be able to propose a printer design that interested people can fine-tune with variables to get the dimensions they want (either by part availability or print volume requirements).
So I humbly submit my Monster Kossel V3 on Github for your review - I'll read replies here or as issues on the Github project if you prefer using that method to track individual points to address.
https://github.com/goeland86/MonsterKossel