DIY RC Car with Suspension

DIY RC Car with Suspension, made from Upcycled Xerox Machine’s Stapler

From my early childhood, I was fascinated by Remote Control Cars and always wanted to have many of them. Years later I finally started building few. My approach to building RC Cars is always cost effective and I always try to upcycle any useful waste I find.  

In this project, I also used two old Xerox machine’s stapler to salvage parts for the RC cars’ chassis. 

I used the hinging action of the stapler arms as the rear wheel suspension. I had to use different springs as the original springs were too tight for RC car’s weight. Two Motors were also salvaged but not used. 

I wanted to give a rough buggy look to the RC car so I decided to give it a articulated steering like a JCB TM220. 

Articulated steering is a system by which a vehicle is split into front and rear halves which are connected by a vertical hinge. The front and rear halves are connected with one or more hydraulic cylinders that change the angle between the halves, including the front and rear axles and wheels, thus steering the vehicle. This system does not use steering arms, king pins, tie rods, etc. as does four-wheel steering. If the vertical hinge is placed equidistant between the two axles, it also eliminates the need for a central differential, as both front and rear axles will follow the same path, and thus rotate at the same speed. Articulated haulers have very good off-road performance.

https://en.wikipedia.org/wiki/Steering#Articulated_steering

Though Articulated Steering looks cool it needs a larger torque so I had to put two Servo Motors of 6v rating and a torque of 15kgcm torque each. 

I also used old roller skate’s wheels for the front wheel. They have really nice ball bearings that made them the right choice. Two springs were used for each long steering arms for the front wheel. Both the springs were attached opposite to each other to have a push-pull effect.

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The RC car was rear wheel driven by a 1000rpm High Torque Motor of 10kgcm. It was powered by a 12.6V Li-Po battery and controlled by a DIY Brushed DC Motor ESC that I made by 3-Phase Rectifying a BLDC ESC. You can read about that here. I also used a FlySky 6 Channel Remote to control the RC car. 

Three Phase Rectifier for using a BLDC ESC as a Brushed Motor ESC

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Here is a Video

Happy Making 

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