電動可変ワイドローラーはフロントを強力に押さえつける【ルール無用JCJCタイムアタック】
9:19
[mini4wd] The two variable rollers fix the machine's posture
6:18
[mini4wd] I want to decelerate with an electric brake
7:08
１輪駆動ミニ四駆の動画
11:39
[mini4wd] This chassis has a center of gravity to the left
11:34
【DIY Robot】I made talking robot ! Let's taaaaalk !【Talking Robot Making】
10:24
[mini4wd] This device is brake on the course
17:57
This machine is very narrow while running.
13:10