Wenhsin CNC Damping Balance Tank Chassis RC Tank Truck Robot Chassis Arduino Car 15.5 x 8 x 3.3 inch Alloy Body with Plastic Tracks + 4 Motors

Good an sturdy, not terribly hard to put together (but does take a solid 90 minutes of work), makes a good base for a bot. Two biggest draw backs: tracks are not rubbery (fixed by spraying them with rubberizing spray), cost is steep for what it is.

The quality of materal and of the cnc parts is very good. This is a kit for more experienced model builders. With experience the lack of instructions does not matter for the build is pretty repetitious and straight forward. I highly recommend applying lock tight to every nut and screw. The track base is to long for this setup to operate on carpet, but all other surfaces the tank seems to traverse well.

Not having directions is almost rude. Of course, it does not seem hard to put together, but nothing fits together the way it should. I could be wrong about that, but there are no directions. So, I'm just going to have to say this is just another thing from China that's a piece of crap, smaller than it is supposed to be, not as good as it claims to be, and getting returned.

While this chassis seems to be very robust (pretty thick aluminum) I sadly can't give it a very good review. It took over 3 hours to assemble with several times having to redo assemblies as it shipped with no instructions and I could not find any online so I had to build it off pictures and figuring out what was what. That alone would not be so bad but while it comes with may extra screws, standoffs and bushings it does not come with enough washers for all the moving parts, a good 8 extra would help protect all the moving parts AND take up some slop in the track guides.However even with that slack the way the belt is made I doubt it will ever throw the tread.All in all if you need a chassis that has the extra articulation and dont mind adding a few extra washers I'd say go for it, it you are looking for a first time build or dont feel like staring at your screen to figure it out then shy far away. Hopefully it will last, I will edit this comment as I find that out.