Mixshop Mini Kossel 3D Printer Kit

The wooden parts will warp with changes in humidity unless painted. The build manual doesn't show the second wooden part in the assembly. There is no large screw supplied that will go thru the board and long enough to put a nut and washer on to attach it to the carriage. Two tiny screws and nuts, and a screw too short are all that attach the plastic to wood. I replaced the axle bolts with a socket head cap screw that is 28mm long and assembled it like the "manual." The weight difference is considerable without all those nuts, long bolt, washers and the extra board. I think I can make this work temporarily. I found this wheel assembly and will probably print something similar when I get the printer working. Some of the cheap bearings supplied are really loose and some preload would help. The tapered wheels I can make myself. http://www.builda3dprinter.eu/shop/kossel-kit/rails-to-wheels-conversion-kit/ The magnetic arms will not make that much difference unless the carriages are running without play on the upright beams. The Traxxus ends are pretty tight and could probably be tightened more with the right socket, a vise and a hammer. Light and tight is the key for better precision and less wear on the machine. Regardless, it's a fun process for me. Just wish some effort was put into documentation of the assembly of a few key things and attention to the rails being protected and clean before shipping. I live on the East Coast so my package was tossed around by UPS many times before it got here. Putting "Fragile" on a package just makes them throw it harder when loading... been there, seen that.

This is a link to the original builders manual: http://reprap.org/wiki/Kossel If you go by the Mixshop manual you will be shown only part of the assembly. The obvious parts, and they are missing a lot of angles in the photography that would help figure out orientation of parts for assembly. Nowhere does it mention any of the wiring components or hot end electronics other than endstops/microswitches. A picture of the wiring diagram is included but the hot end heater and thermistor assembly is never mentioned. It's not a big deal as long as you don't mind wasting a lot of time trial fitting parts and scouring the internet for solutions. I have the time, a lot of people don't.

I never even considered using two of the wooden parts for the carriages. I'd probably try it if I didn't already break one of them. It's going to be one of the first things I replace on this printer in all honesty. That and the effector. But I think that's just more preference of using magnets instead of the traxxas ends.