Motoblock with a cart (346703)

Motoblock with a cart 3d model 
The general parameters are as follows: power - 8 hp, disc clutch, weight - 90 kg, wheels of the block itself - 19-7x8, cart load capacity - 500 kg.
A number of parts are sharpened into functional blocks. All blocks and parts are tied to the chassis. The cart is tied to a bar.
If someone needs to smooth sharp corners and edges with geometry, I recommend using the Chamfer modifier. With it, you can do this for complex parts in just a few clicks according to the algorithm you specified.