By Daniel Lesser 作者：Daniel小

Materials Needed: 所需材料：

• 3/8″ X 4′ X 8′ sheets of plywood 3 / 8“× 4'× 8'表的胶合板
  8′ 2×4's 8'2 × 4的
  electric, handheld or bench saws电力，手持或长凳锯
  handsaw手锯
  hammer & nails锤子与钉子
  electric sander/sandpaper砂光机/砂纸
  drafting compass起草指南针
  string & chalk字符串和粉笔
  garden hose花园管
  sawhorses sawhorses
  nail punch钉子冲
  ink pen墨水笔
  wood screws木螺钉
  3/8″ PVC pipe 3 / 8“PVC管材
  pushpin图钉

Instructions: 说明：

• Decide on the type of ramp you want to build, sketch out the design and dimensions on paper.决定对匝道要建立，勾勒出型的设计和尺寸的纸张。
• Acquire the materials required, and as much wood as you can get your hands on.取得所需材料的，只要你把你的手在很多木材。
• Find a work space to use (garage, backyard, etc.) and lay out your supplies.查找工作空间使用（车库，后院等），布置您的用品。 If you're planning to build a fairly large structure (permanent) try to build it on site.如果你计划建立一个相当大的结构（永久）尝试建立在网站上。
• For ramps with curved transitions, you will need to use the string-and-compass method * .对于弯曲过渡斜，您将需要使用字符串和罗盘方法*。
• Once you've drawn and cut your templates, next comes the bracing.一旦您吸引，削减你的模板，接下来的支撑。
• Once you've done the framework , 一旦您完成的框架 ，
  you'll most likely need to prep the top pieces of the plywood (which must bend to fit the transition without breaking).你很可能需要准备的胶合板前件（必须弯曲，以适应不破坏过渡）。 Do this by propping up the sheets–already cut to size–at a sloping angle and soak with a hose at low pressure for an hour or so.做支撑的床单本，已经切割成一定的尺寸，在一个倾斜的角度，用浸泡在一个小时左右，低压软管。
  • As the wood becomes soaked, apply an increasing amount of weight to the center of the boards–using bricks or something similar–until the wood attains the desired curve.由于木材变得浸泡，适用的重量越来越多的董事会中心用砖或类似的东西，直到满所需的木材曲线。
  • Now nail the wood onto the framework's 2×4's If your ramp is to have coping, make sure to leave enough space for it to fit snugly.现在，钉在框架上的2 × 4的坡道，如果你是有应对，请务必留下足够的空间以适应它紧贴木材。 Always go WITH the grain of the wood while bending and apply the ply!始终顺应了木纹，而弯曲，应用层！
  • For a smoother transition , 对于一个平稳的过渡 ，
    sand the bottom edge of the top sheet at an angle flush with the ground.沙子的角度与地面齐平的最高负债表的底部边缘。 Check for jagged splinters.检查锯齿状的碎片。 Sand or paint if desired.沙或油漆如果需要的话。 Paint will make your ramp faster!油漆会使你的坡道更快！ Duct tape, airplane or electrical tape or aluminum strips may be added to smooth the transition's bottom edge.胶带，飞机或电工胶带或铝条可能被添加到平稳过渡的底部边缘。

* String and Compass Method *字符串和指南针方法
Figure how much transition curve you want (in feet & inches) and how much 'vert, if any.图过渡曲线多少想要（以英尺和英寸），多少'佛得角，如果有的话。 Tie one end of the string around the pushpin and stick it in the sheet as shown.铁一周围的图钉字符串末尾，坚持在该表所示。 Holding the string taught, measure out exactly the amount of transition and mark this on the string with an ink pen.控股字符串教，准确测量出的金额过渡和用墨水笔字符串纪念这个。 Tie the drafting compass to the other end of the string and tighten it so the slipknot is right on top of the mark you made.铁起草指南针字符串的另一端，收紧所以活结是正确的商标上所做的顶部。 Holding the string taut, swing the compass from the sheet's edge in a quarter-circle, marking the template with the chalk.控股线拉紧，秋千，指南针从表在25圈的边缘，标志着模板与粉笔。 You may need to move the contraption around to get the desired curve and best use of space!您可能需要移动玩意儿，务求达到预期的曲线和最佳利用空间！ Place sheet on sawhorses and cut out templates carefully.广场单张sawhorses删剪，模板小心。

NEW ADDITION ON DECREASING TRANSITIONS: 新增加的关于减少跃迁：
If you want to make a ramp with a decreasing transition, you need to modify the above steps and instead of using a pushpin, use a round object that is 6 inches to 3 feet in diameter, such as a paint can or a round garbage can.如果你想与过渡的斜坡下降，您需要修改上述步骤，而不是使用一个图钉，用一个圆形对象，如油漆6英寸的直径3英尺，可以或圆垃圾桶。 Attach the string to the round object and somehow secure it to the wood in place of the pushpin.附加的字符串对象，并以某种圆形到安全的地方木材的图钉。

As the string winds around the round object, it will get shorter and your transition will become tighter.由于周围的圆形物体的字符串风，它就会缩短，您的过渡将日趋紧张。 This is called a decreasing radius transition and it is very cool when making launch ramps and quarter pipes.这就是所谓的下降半径过渡，这是非常凉爽时，坡道和季度发射管。

Building a Mini Ramp 建立一个小型斜

–About– ，关于-

By Daniel Lesser – Daniel J Lesser is the creator of BikeChoices.com Assembled by BMX and mountain bike “experts,” you'll find every bit of information you could ever need about BMX and Mountain Bikes. 由丹尼尔小 -丹尼尔J小，是BikeChoices.com组合的小轮车和山地自行车的创造者“专家”，你会发现每一点信息都需要你可以对小轮车和山地自行车。 Find out how to best enjoy your next ride at http://www.bikechoices.com了解如何最好地享受http://www.bikechoices.com您下次乘坐

Source: 来源： Cool Biking Zone酷骑自行车带 – Your source for great cycling, sports and fitness articles! - 您的源伟大的自行车，体育和健身文章！