![]() ![]() Steering Rack Bracket 8 pin Plate T37 (#4262) (Turn the car frame to the normal position - The studs point up.) (Repeat the procedure from photo 1 to make the right side car frame. Turn both frames upside down.) Photo 6. We are done with left car frame. Photo 4. Connector Pegs with Friction (#3673, 2 no.), and 1x8 Technic Brick(#3702). Connector Pegs with Friction (#3673, 2 no.), and 1x 6Technic Brick (#3894) I also added the description text on each image.įollowing is the list of parts used in each step. In this Step, I'm going to show you how to construct the car frame or body. 2163680) PCB (approximately 2"x3") Hook up Wire Tools Sugru Super Glue X-ACTO Knife Sand paper Files Hand Drill & bits ![]() Arduino or Arduino compatible (I used DIY Arduino in this project.) L293D (or SN754410) motors driver IC XBee module Xbee breakout board (I used XB-Buddy Basic Kit, Jameco's Part no. This motor is driving the car forward and backward. Motor I got the motor with the worm gear and enclosure from Electric Dragster Kit by Middlesex University. Reinforced Rim with no pin holes 30.4mm D x 20 mm (#56145) Servo 9g Micro Servo (T Pro SG90) This servo is controlling the front wheels turn. 1x4 Flat Tile (#2431, not shown in the picture) Wheels and Rims Front 2 no. Liftarm Triangle Thin (#2905) Steering Kit Steering Gear Holder(#2790) Steering Rack (#2791) Steering Rack Top (#2792) Steering Rack Bracket 8 pin Plate T37 (#4262) Steering Arm Drop Link (#4261) 8 Tooth Gear (#3647) 1 no. Connector Peg with Friction (#3673, 6 grey, 4 black) 6 no. 1x2 Brick with Horizontal Snap (#2458 not shown in the picture) 2 no. Note: The number in the bracket is the Lego's Design ID. I have no choice, because the red brick were available when I got started. Later I got some other color from the bid on ebay. If you want to do this project you could use the differenct color for the car. I chose to bid on the almost complete vehicle, or those without the construction manual, to get them cheaper than the complete kit. But I changed my mind so I did some bid on ebay so I could get some more steering system to work with. When I started to do this project I thought about using the bricks from my Lego cars collection. The total amount of energy is conserved.Lego Technic Bricks Following is the list of Lego Technic parts that I used for building the car. Eventually, the car will come to a stop, but the energy is not lost-it is converted to other forms like sound and heat (from friction). When you release the balloon, this stored potential energy is converted to kinetic energy, the energy of motion. When you inflate the balloon, it stores potential energy (in both the stretched rubber and the compressed air inside). You can also think about this activity in terms of energy. The car is already moving forward, so even though the balloon is no longer pushing it, it will keep moving until an outside force (friction) brings it to a stop. You may notice this is your car keeps moving even after the balloon has completely deflated. ![]() Newton's first law of motion states that an object in motion will remain in motion, and an object at rest will remain at rest, unless acted upon by an outside force. You witness this as the car accelerates forward when the balloon deflates, and again as the car coasts to a stop (decelerates) when friction slows it down. ![]() Newton's second law of motion is summarized by the famous equation F=ma, or that the net force acting on an object equals its mass times its acceleration. When the balloon deflates, escaping air is pushed out the back of the balloon. Newton's third law of motion states that for every action, there is an equal and opposite reaction. Your balloon car is a great demonstration of all three of Newton's laws of motion! However, we are going to explain them in reverse order: ![]()
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