I’ve been asked by quite a few people for a tutorial on how to make the 4 bar double reverse robot (Or rather – the Reverse- Double Four Bar). Seeing that I built it by trial and error, I didn’t take pictures at the time, but I took it apart this weekend. This time I took pictures and put them in a slideshow movie. I know it isn’t really a step by step instruction on the build, but I think it would give anyone who would like to build a 4 bar double reverse while only having the super kit, (without add on kits) enough ideas to build their own robot.
Making of 4BDR (Four Bar Double Reverse)
![](https://i0.wp.com/www.robot-hq.org/wp-content/uploads/2018/10/Waiting.jpg?fit=4000%2C2240&ssl=1)