| Finding the appropriate halfpipe to fit your | | | | vertical) on the side. It should be about 3"3 |
| preference can be difficult, so the best | | | | tall, with three pieces. Use the fishing line |
| thing to do is to make one yourself. If you | | | | to fashion out a curve with a radius of |
| do it yourself you can ensure that all your | | | | approximately 5"7 ½". This will serve |
| needs will be met and you won't have to worry | | | | as the halfpipe bowl. |
| that something is just not perfect. | | | | |
| | | | Use the radius to make the side bracing, |
| Although you can construct one, consider | | | | noting the areas of support. Join the |
| getting your friends involved; not only does | | | | vertical sides using the cross members. They |
| it make things easier, but its also more fun. | | | | should be about 7 and half inches apart. Do |
| Especially after it is done and you all can | | | | not forget to double them up at the point of |
| then use it and know that it was something | | | | the plywood beams so they will not break up |
| you all built together for fun and adventure. | | | | when you utilize them. |
| | | | |
| Don't worry, this project is not going to be | | | | The plywood will serve as the decking; |
| as difficult as you might at first think. | | | | connect it with the screws. To create the |
| Just make a plan and stick tto it and in no | | | | platform and the ramp, you just double the |
| time you will have it up and ready for use. | | | | plywood decking. To make the ramp easier to |
| | | | use, place a smooth surface above the |
| The materials you will need to make the | | | | plywood. |
| halfpipe are easily obtainable; 8 sheets of | | | | |
| plywood (3/4"), stock (2 x 4), a 10" PVC | | | | The last thing you will build for the |
| pipe, several nails, ½ screws and | | | | halfpipe is the grinding rail (the starting |
| laminate. To put the whole thing together, | | | | platform and the decking join up). To |
| you will need a hammer, a fishing line, a | | | | mitigate the damage to these areas, get the |
| measuring tape, some pencil and paper, and a | | | | 10" PVC pipe. Use the screws to fasten it to |
| saw. A drill with bit selections is also | | | | the plywood. |
| necessary. | | | | |
| | | | There will be times when you will need to |
| The first thing that you will have to do is | | | | disassemble the halfpipe. It is for this |
| find an ideal spot. This will determine how | | | | reason that you should use screws than nails, |
| large the halfpipe will be. Next, you put | | | | because it will make it easier to pull the |
| down the framing system, which consists of | | | | whole thing apart and back together again. |
| two proportioned sides. Get the 2 x 4 stock | | | | Also, covering the halfpipe with any material |
| and make a bracing structure 4" wide and 8" | | | | that will protect it from heavy rain will be |
| long. The surface should have two sections (4 | | | | necessary. |
| x 8) and floor support about 7" and 7/8" | | | | |
| spaced apart. | | | | Of course, you should regularly inspect the |
| | | | halfpipe and replace any parts that have been |
| Next place the bracing (horizontal and | | | | subject to wear and tear. |