About this 3D model
I uploaded these parts already with an hour of typed instructions, and then hit the side button on my mouse which made it click 'back', losing all my typed instructions! As a result, I'm posting only models and no instructions for now - I'm sick of typing! Anyway, this is a followup to http://www.thingiverse.com/thing:385986. This is the printable models for everything designed so far. Note, you require masses of M5 and M3 screws of various lengths along with 12x 15 mm OD / 8 mm ID linear bearings, and 48 3 mm ID / 7 mm OD standard bearings amongst other things (like wires, NEMA 17 motors, etc). Also needed: 3/4 inch aluminium box section (3 x 670 mm lengths) and 6 x 800 mm, 8mm diameter steel shafts. There are also a few places for self-tapping 3.5 mm diameter screws. The glass clamp sections (prefixed CLAMP in filenames) are designed to work with 32 mm foldback clips from staples. This allows a 280 mm glass plate to be clipped in and removed with relative ease and no loss of levelling (I hope). I will post pictures in due course to aid in putting the whole thing together (it's waay easier than retyping all those instructions!). Everything was designed in Moray for Windows V. 3.5 and exported to OpenSCAD using my OpenSCAD export plugin. See my other 'things' to find the Moray plugin. NOTE: As a work in progress, not all the parts have yet been designed. For instance, there is no hotend yet, and no drive mechanism for the filament. Also note that there are issues with flex in the 8 mm shafts allowing buildup of vibration. A final point to note is that this printer will not work with the marlin deltabot firmare as it stands: the inverse kinematics for my hinge designs is more complex (requiring twice the number of square roots, and therefore adding load to the processor). Max printing speed with modified marlin deltabot firmware supporting my inverse kinematics may be as low as 20 mm/s due to the processing constraint, however I intend to develop a controller for each tower which can: a) only calculate coords for that tower alone (leaving time for...) b) monitoring motor temperatures and detect motor jumping c) cancel vibration by intelligent control of the motor These controllers will then be networked to the main CPU which does the G code processing and route planning.