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# Eng Puetne De Tubos

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• 1. A platform that can be raised
• 2. A platform that can be raised
• We are going to make a bridge with a platform that can be raised. The structure will be made with triangles of paper only
• 3.
• Before we start with the bridge we are going to do a resistance test on the traingulated structures
Triangles resistance test
• 4.
• In order to do this project we need these materials:
• Paper
• Thermofuse glue
• Cord
• Plywood
Triangle resistance test
• 5.
• First of all we will make the paper tubes. You roll the paper around a wood bar.
Triangles resistance test
• 6.
• Then glue the edge with a little glue. Take care because if you use too much, it will get stuck to the
Triangles resistance test
• 7.
• Since our tower is 30cm high we have to make:
• 4 tubes 30cm long
• 16 tubes 10 cm long
• 16 tubes de 13 cm long
Triangles resistance test 4x 30cm 16x13cm 16x10cm
• 8.
• With the tubes you will form two sides of the tower
Triangles resistance test Make two of these 30cm 10cm 13cm
• 9.
• In order to connect the bars properly try to make a gap at the end of the shortest bars
Triangles resistance test
• 10.
• Once you have two sides you can start joining them together like in the picture
Triangles resistance test 2X
• 11.
• Remember that the more triangles the stronger the structures will be
Triangles resistance test
• 12. Triangles resistance test
• Finally we will put all the towers together to make them more resistant.
• The board has to be 30x40cm in order to cover 6 towers
• 13. Triangles resistance test
• We will check the resistance of our triangles¡¡
• 14. Triangles resistance test
• You have only six days to finish it, so
• Let’s work
• 15. A platform that can be raised
• Now that we know how to make triangulated structures we are able to build a platform that can be raised
• 16.
• As you did before, o nce you have two sides you can start joining them together like in the picture
Triangles resistance test 2X
• 17. A platform that can be raised
• Attention¡¡¡¡¡
• This time we have to leave a gap where the platform will be placed
• 18. A platform that can be raised
• This is the handle that will move our platform
20cm 3cm 8cm 5cm
• 19. A platform that can be raised
• The platform has to be 20x10cm and you have to make it as you did before
Cover it with a piece of paper 10cm 13cm 20cm
• 20. A platform that can be raised
• The platform form will be made with tubes and has to be movable, so make sure that one tube can be placed inside the other
5cm
• 21. A platform that can be raised
• Then you need to insert the crank inside the tower, using two tubes of 3cm diameter
Cranck
• 22. A platform that can be raised
• Finally you only need to connect the platform to the tower with a cord, making a knot at both ends