RepRap Snapdragon
by wildseyed, published
Description
I ran across the MTM Snap 3D CNC design by Johnathan Ward (http://mtm.cba.mit.edu/machines/mtm_snap-lock/), and was impressed by the apparent lack of hardware needed to assemble the frame. I thought to my self "This would make a nice, portable reprap..."
The MTM Snap 3D design is meant to be machine milled out of HDPE, and although it could very likely be RP printed, it would require a much larger print bed than what most of us have, so I'm borrowing the concept (and the snap feature), but am designing a new set of modular parts that can be snapped and assembled into a much larger piece.
You will notice that the walls of the Snapdragon are much thinner than those of the MTM Snap 3D. Economical use of filament is part of the story there, but I also feel that those thick wall are not needed for extrusion, are there is little resistance against the part from the head of the machine.
I'm working in SolidWorks, but if someone with OpenScad skills would care to port things over, I'll be happy to share the files.
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I have actually made the MTM Snap design out of cardboard, but with a few modifications so it fits together nicely. I am also using servos instead of the stepper motors, I was able to get a square using a pen very nicely, but I don't know how to get g-code to run on it, know any interpreters?
I am going on holiday starting Friday. I don't know if this means I will have time to work on Snapdragon, or not. I will keep in touch, and let you know how we can proceed. I think I can get you dxf outlines to start with in OpenSCAD. Right now I am re-sizing parts so that they do not need to be printed diagonally, as this could be difficult for some people. Send me your e-mail address.
This is a very nice idea, and along the lines of something i was planning to do myself.
The parts don't seem too complex, so i would be willing to do the openscad port if you are still interested ?
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Right now, I'm maximizing the part size by printing braces diagonally, and right up to the edges, but I think I may reduce the length slightly so that it's easier to print.
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This is a very nice idea, and along the lines of something i was planning to do myself.
The parts don't seem too complex, so i would be willing to do the openscad port if you are still interested ?
I am going on holiday starting Friday. I don't know if this means I will have time to work on Snapdragon, or not. I will keep in touch, and let you know how we can proceed. I think I can get you dxf outlines to start with in OpenSCAD. Right now I am re-sizing parts so that they do not need to be printed diagonally, as this could be difficult for some people. Send me your e-mail address.
I'm in the planning stages of building a Prusa Mendel, but the MTM Snap 3D caught my eye as well. I'm looking forward to seeing how you merge the designs. :)
I have actually made the MTM Snap design out of cardboard, but with a few modifications so it fits together nicely. I am also using servos instead of the stepper motors, I was able to get a square using a pen very nicely, but I don't know how to get g-code to run on it, know any interpreters?