Swaytail Professional Shock-Absorbing Smart Metal Robot Tank Car Chassis Kit For Arduino/Raspberry, Tracked Suspension Absorption Vehicle, Remote Control Track Crawler Damping Vibration Caterpillar

I must admit that I have not completed this project. Since I can add to the basic structure, I consider this be one of the challenges that I most crave in building these machines.

Don't expect thorough instructions. I had to stop and think it through a couple times but I got the chassis assembled in about 2 hrs. It did not include the 2mm retainer screws needed to keep the wheels on the axle, so consider ordering a set (10 total). They'll need to have a wide head or washers. Other than the missing screws, I was pleasantly surprised that everything went together well.As far as durability, I think the frame is a bit on the flimsy side - I plan to add some bracing to keep the track frames rigid. The tracks are some kind of plastic/ABS and they are decently strong, although time will tell if they hold up, and they have zero traction on smooth floors. It is not fast at all but it has reasonable torque. The spring suspension is very firm - unless you have a heavy payload, it's going to be a bumpy ride.

Video is not of actual product and zero instructions on how the non drive idler wheel is installed. One motor kept shorting out internally and took out both of my 70A esc's. Also while disassembling I realized the sprocket on one side doesn't even line up! What a garbage cheap item

Kit was missing two critical parts. I have been in contact with the seller who says that they will send parts 'soon.' Additionally 3 of the 10 of the axel shafts were over-bored causing the machine screws required to retain them to strip the threads. I was able to re-bore/re-thread the shafts and use larger screws to solve the problem. Overall I like the design and think it will meet my needs once I cure the manufacturing/packaging defects. Sell has been prompt to respond, but as of this time has not informed me that parts have been shipped. We will see.

Parts are missing. We have to use our own parts to finish assembly it