Here is another robot for makers and coders. The DOBOT MG400 has a lightweight design. It has a 7.48 x 7.48″ footprint and is light enough for you to carry in your backpack. It is programmable through teach & playback, LUA coding, and block-based programming.
The MG400 is pretty easy to use. Simply install the robot, plug it in, and connect it to your PC or tablet via Ethernet or WiFi. It has a max payload of 750g with 440mm reach and ±0.05mm repeatability.