Based on the final design of the Dual Twister Ramp (DTR), held in Metasequoia, make a template (Pepakura) to build a scale model of the ramp (10cm high).
This is template in pdf forma (Black and Color)t:
This is the format version PDO: Rampa005x.pdo (Zip file)
The following video shows how they were attached to different parts of the scale model of the DTR:
These are photographs of the scale model of the DTR finish:
The following video shows the scale model of the DTR in action, with two mini balls (balls of paper) running down the ramps in various ways. For the same ramp and separate ramps.
Ok, the next step … create the real scale model of the DTR (59 cm high).
The following video is to identify each part of the balance in the design template. We must pay attention to the red boxes that appear when selected each element of the 3D design.
Hands On!
First start with the base, adding a counterweight with several coins of 25 cents Quetzal (6 * 8 = 48 coins), about $ 1.50 USD. With cardboard circles and strips of cardboard wrapped and sealed with adhesive paper, make sure the main mast.
More and more strips of cardboard rolled form individual carriers to ensure the spin axis and the counterweight of the indicator and the arms of the balance.
In closing, the brackets are placed hooks made of paper clips.
Ready, the balance is complete!
It’s time to experiment!
First common place two balloons of equal size, one on each hook of the balance.
One can see that the arms remain horizontal balance.
It is filled with either air balloons and notes that now the balance arm that holds the balloon filled with air is lower than the side of the globe which has no air.