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'表的膠合板
  8′ 2×4's 8'2 × 4的
  electric, handheld or bench saws電力，手持或長凳鋸
  handsaw手鋸
  hammer & nails錘子與釘子
  electric sander/sandpaper砂光機/砂紙
  drafting compass起草指南針
  string & chalk字符串和粉筆
  garden hose花園管
  sawhorses sawhorses
  nail punch釘子衝
  ink pen墨水筆
  wood screws木螺釘
  3/8″ PVC pipe 3 / 8“PVC管材
  pushpin圖釘

Instructions: 說明：

• Decide on the type of ramp you want to build, sketch out the design and dimensions on paper.決定類型的坡道要建立，勾劃出的設計和尺寸的紙張。
• Acquire the materials required, and as much wood as you can get your hands on.獲取所需的材料，並盡可能多木材，你可以把你的手的。
• Find a work space to use (garage, backyard, etc.) and lay out your supplies.查找工作空間使用（車庫，後院等），佈置您的用品。 If you're planning to build a fairly large structure (permanent) try to build it on site.如果你計劃建立一個相當大的結構（永久）試圖建立它的網站。
• For ramps with curved transitions, you will need to use the string-and-compass method * .對於斜弧形過渡，您將需要使用字符串和羅盤方法*。
• Once you've drawn and cut your templates, next comes the bracing.一旦您吸引，削減你的模板，接下來的支撐。
• 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).你很可能需要準備頂端件膠合板（必須彎曲，以適應轉型不破壞）。 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.為此，可以支撐的床單，已經切割成一定的尺寸，在一個傾斜的角度，用軟管浸泡在低壓一個小時左右。
  • 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.由於木材變得浸泡，申請量不斷增加重量的中心局，用磚或類似的東西，直到滿所需的木材曲線。
  • 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.現在，釘木框架上的2 × 4的坡道，如果你是有應對，請務必留下足夠的空間以適應它緊貼。 Always go WITH the grain of the wood while bending and apply the ply!總是與糧食的木材，而彎曲和應用層！
  • For a smoother transition , 對於一個平穩的過渡 ，
    sand the bottom edge of the top sheet at an angle flush with the ground.沙底部邊緣的前負債表的角度與地面齊平。 Check for jagged splinters.檢查鋸齒狀的碎片。 Sand or paint if desired.沙或油漆如果需要的話。 Paint will make your ramp faster!油漆會使你的坡道更快！ Duct tape, airplane or electrical tape or aluminum strips may be added to smooth the transition's bottom edge.膠帶，飛機或電工膠帶或鋁條可能被添加到平穩過渡的底部邊緣。

* String and Compass Method *字符串和指南針方法
Figure how much transition curve you want (in feet & inches) and how much 'vert, if any.圖過渡曲線多少想要（以英尺和英寸），多少'佛得角，如果有的話。 Tie one end of the string around the pushpin and stick it in the sheet as shown.鐵一端串圖釘周圍，堅持它在表所示。 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，準確測量出的金額過渡和慶祝這個字符串用墨水筆。 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.鐵起草羅盤另一端的字符串，收緊所以活結是正確之上所做的標記。 Holding the string taut, swing the compass from the sheet's edge in a quarter-circle, marking the template with the chalk.控股線拉緊，鞦韆，指南針從表的優勢，在25個圓圈，標誌著模板與粉筆。 You may need to move the contraption around to get the desired curve and best use of space!您可能需要移動玩意兒，務求達到預期的曲線和最佳使用空間！ Place sheet on sawhorses and cut out templates carefully.廣場單張sawhorses刪剪，模板小心。

NEW ADDITION ON DECREASING TRANSITIONS: 新增加的關於減少躍遷：
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.如果你想一斜坡過渡的下降，您需要修改上述步驟，而不是使用一個圖釘，用一個圓形的對象是6英寸到3英尺，直徑，如油漆可以或圓垃圾桶。 Attach the string to the round object and somehow secure it to the wood in place of the pushpin.附加的字符串對象，並以某種輪安全到代替木材的圖釘。

As the string winds around the round object, it will get shorter and your transition will become tighter.由於串風周圍的圓形天體，它會變得越來越短，您的過渡將日趨緊張。 This is called a decreasing radius transition and it is very cool when making launch ramps and quarter pipes.這就是所謂的下降半徑過渡，這是非常涼爽時，坡道和季度發射管。

Building a Mini Ramp 建立一個小型斜

–About– ，關於-

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. 由丹尼爾小 -丹尼爾J小是造物主的BikeChoices.com組裝的山地自行車和小輪車“專家”，你會發現每一個比特的信息可滿足您需要有關小輪車和山地自行車。 Find out how to best enjoy your next ride at http://www.bikechoices.com了解如何最好地享受您下次乘坐的http://www.bikechoices.com

Source: 來源： Cool Biking Zone酷騎自行車帶 – Your source for great cycling, sports and fitness articles! - 您的源偉大的自行車，體育和健身文章！