Harriesh:  Still working on this project . . . The most challenging part is to mount the electric motor and gears together.

Ye Zhe:  I'm upgrading the last week project. .

Zhang Quan:  After completed the extendable scissors, I'm now converting it into a balance. .

Zhang Quan:  No matter how many times I tried, 😅 can't balance these two objects easily. .

Ben:  Writing a program for the shooter . .

Ben:  Aim at the target then fire 🚀 . . .