EMOZNY Emo Smart Robot Car Chassis Kit with Motors, Speed Encoder and Battery Box for DIY

This was easy to put together and the motors work well. The motors aren't perfectly in tune so you'll want to either use an encoder or just code it to turn one slower than the other if you run into that problem. There are a good amount of mounting holes at various distances so you can use rpi, arduino, whatever you want with it. It's also a good size for basic mobile robots. Great for the price!

Instructions were easy enough to follow if you thoroughly read them, can't just use pictures to follow along with. Screws for the "Hammer Caster" are too small and fall through the caster's holes, need to supply washers or larger screws. As others have recommended, the power switch location is horrible once everything is wired up, needs to be re-located. Also, make sure to solder on wires to the motors before you attach them or you're going to have a bad time putting them on.

Muy buen diseño y materiales.

Easy installation, and really fun to play with for a kid. Got one of these for a friend's kid, and after comparing the prices, this is the one I ordered. He absolutely loved it.

Pretty much exactly what i was looking for. Enough holes to mount things. not perfect but was able to get 1-2 screws in. Chassis came scratched without the protective peel which the instructions said to peel off but that’s just cosmetic. As another reviewer said, the screws for the castor wheel are too small and go right through the castor wheel holes. I had to add some small washers which I luckily had. Btw you will need some additional wires to connect the switch.

The item was missing parts required for it to function. Four of the screws were the wrong size and slid through the holes that they were supposed to be for. I used some of these spare nuts to hold those parts together, but there weren’t enough of the spare nuts to do it for all four locations. It also did not come with enough wires to connect the battery box to the switch and the motors. The item description claimed that this would be usable out of the box once assembled, and it was not.

as expected

This robot is good for the price but the DC motors I got from the kit were unevenly powered and the 3 wheel design is not ideal for line following