About this 3D model

Consider this: if you put a horse in front of a car where would you rather have it pull it? Right now most X-axis designs that are using cheap components are not allowing real accurate prints. This one has the intentions to do exactly that. So it addresses many issues around X ends for Mendelmax/Prusa type designs enabling ACCURATE PRINTS. All parts needed are there and seem to work nice together. As a good observer can see, i've heavily modified some of the Kuehling designs, basically placing the belt from outside the Xaxis smooth rods to the inside just running over the X-carriage platform by about 2 millimeters and also the same amount away from the extruderplastic/aluminium plate. Todo: Testing the components in my mendelmax When it works ok i can modify it from alpha to release status. Until then consider this modification work in progress right now. Todo: GT2 belt clamp WORKING STATUS FOR : T2.5 + aluminium pulleys with 16 teeth. Though it might seem so, it uses hardly more plastic than the Kuehling designs do and in case of the X carriage it's less. Note that this gets caused by using rod distance 44 mm rather than 50 mm, which is possible as the belt attaches in between the rods rather than outside the rods. 44 mm gives a lot of space around the extruders, smaller distance is possible! With the belt attached nearby the center in between the rods, a huge rod distance no longer is a necessity; the 50 mm was a result of a historic poor design. Update 10 may: after printing a bunch of objects - i don't ike the idler design. It does work ok - yet it produces a high scraping sound i don't like. Admitted i hadn't put oil inside, so going take a look at redesigning that part using somehow a bearing. Might get the entire structure for all parts a few millimeters higher possibly as a bearing is a huge thing to fit in there. To be continued... Update 7 may: The STL of the Carriage should be mirrored, as right now it only works with the motorend facing the motor of extruder; of course mirroring extruder also works - maybe i'll try that as i need to update it anyway to win back more of the build platform. After toying trying to get it to work ok here, as i stupidly used wrong glue for idler-end and ok glue for motorend (resulting in different tolerancesand diff way it been glued in - doh), it seems that there is many ways yet left to optimize the extruder and way how beltclamp is located (as that eats massive space) of the X print area. Update 5 may: This plastic seems a MASSIVE IMPROVEMENT of the Kuehling designs. Measured the Z-axis swing to be improved by factor 5. At 15 CM distance from 5 mm to 1 mm (swing to one side in both X as well as Y direction), this while still using cheap components. The motorhang of the motorend needs to be at least 2 millimeters higher. Is easy to live with using some spacers for now. Will update the STL. Update 1 may 2013: all the latest files uploaded to here. Small changes also in the Idler end and Motor end to give it a better fit. This plastic should work. Individual component testing has been performed! "only" thing todo now is to test in my mendelmax how accurate it can print! Update 23 april: the X end idler improved to use M5 bolt and a pulley for the belt. No bearing needed! Update 21 april: the X end idler been uploaded (not yet tested well yet over here). Update 17 april : all the SCAD files have been updated and the STL as well. The thing is in alpha now. XaxisAlpha3 (repaired).stl is the latest. The repaired was added by netfab fixing it. Many small fixes and improvements. This is the Porsche for the poor. UPDATE 15 april - the latest design uploaded here and again fixed with netfab. Did do many small changes. Most in order to save plastic. April 14 design was after printing in orange PLA with 45% infill 70 grams (+5 grams for motorplate). Design should work now for the gear i've got here. Still to do: make some hole to attach solidly the X axis rods, probably going to be a variation of Jonas Kuehling, yet then upside down as the weight pushes the rods down, so not going to remove material there. Gear i've got here: M8 nuts having wrench size 12.85 mm note that the rod distance between the 2 smooth rods is 44 mm here, default in most designs it's 50 mm - yet here the belt runs from the center of the X carriage so no problem. UPDATE 14 april 2013 - fixed the STL with netfab and it prints ok now. Note it looks maybe tad more primitive right now. Also added another millimeter on top of it, which i will change later to have it split that. the "repaired* stl is the one you want to print for the X axis for now. to do: I'll modify the entire Jonas Kuehling design there soon - especially the way how it clamps the X smooth rods - as right now there is a huge difference in angle for the X carriage depending upon how tight or not tight you put in the nuts and bolts into the X ends - which is no good. This is the X axis using cheap 8mm smooth rod and cheap 8mm threaded rod. Addi