建立自己的躺式自行车（十八）
建立自己的躺式自行车（十七）
底部支架
Tools Required: 所需的工具：
#32 drill bit ＃32钻头
1/8" drill bit 1 / 8“钻头
1-1/8" hole saw 1-1/8“孔锯
1-1/4" hole saw 1-1/4“孔锯
1-3/8" hole saw 1-3/8“孔锯
1-¾" hole saw 1 - ¾“孔锯
Drill press 钻床
Belt and Disc sander 带和盘式砂光机
Misc. 杂项。 Files and emory cloth 文件和埃默里布
Pliers 钳子
Pop rivet gun 波普铆钉枪
Compass 指南针
TIG Welding apparatus using 100% tungsten 1/8 inch diameter tip氩弧焊焊接设备使用100％钨1 / 8英寸直径的尖端
1-3/8"x 24 thread set tap, both Left and Right Tap. 1-3/8“× 24线程设置自来水，左，右两塔。
Material required: 材料要求：
1-3/4" x .063" x 13" Aluminum tubing 1-3/4“× 0.063”× 13“铝管
1-1/8" x .063" x 6" Aluminum tubing 1-1/8“× 0.063”× 6“铝管
1-3/4" x .1875" x 3.0" Aluminum tubing (Wall thickness may require machining for proper threading) 1-3/4“× 0.1875”× 3.0“铝管材（壁厚可能需要进行适当的螺纹加工）
1/8" x .3/4", Stainless Steel Pop Rivet, 2 ea. 1 / 8“× 0.3 / 4”，不锈钢铆钉流行，2 EA中来。
½" diameter nylon pulley (can be brass) with 1/8" shaft, 1 ea. ½“直径尼龙滑轮（可黄铜），有1 / 8”轴，1 EA中来。
2" x 2" x .5" delrin stock 2“× 2”× 0.5“聚甲醛树酯股票
1/8"x ¾" roll pin, 1 ea. 1 / 8“× ¾”滚针，电针1。
5 minute epoxy 5分钟环氧
Building the Bottom Bracket Shell 大楼底部支架壳牌
The bottom bracket shell is a 68 mm (2.66") long, thick tubular structure that contains a 1 3/8"x 24 pitch machine thread on both ends. 底部支架外壳是一个68毫米（2.66“）长，厚厚的管状结构，它包含1 1 3 / 8”× 24间距两端螺纹机。 On the right end, a left-hand thread is used. 在右边年底，左手线程使用。 The bottom bracket can be fabricated from any type of 6061 T6 aluminum, as long as the stock is 68 mm wide, has an ID of 1.33" and a wall thickness of .180" to .250". Once these dimensions are achieved, the applicable threads can be machined. For those not having the resources, this threading can be accomplished by a bicycle shop. Once the bottom bracket shell is machined and threaded, drill a 1-1/8 inch hole directly in the middle of the shell. For good results use a hole saw. Refer to the illustration below. 底部的支架可以制造任何类型的6061至T6铝，只要股价为68毫米宽，有1.33的ID“和壁厚0.180”到.250 “。一旦这些尺寸实现，适用线程可以被加工。对于那些没有资源的，这线程可以完成的自行车店。一旦中轴壳加工和螺纹，钻中间壳1 1-1/8英寸的孔中直接。对于好的结果使用孔锯。参照下图。
该文转摘于:科技爱好与博览 http://www.naf.com.cn,本文详细出处请访问以上网站.
底部支架
Tools Required: 所需的工具：
#32 drill bit ＃32钻头
1/8" drill bit 1 / 8“钻头
1-1/8" hole saw 1-1/8“孔锯
1-1/4" hole saw 1-1/4“孔锯
1-3/8" hole saw 1-3/8“孔锯
1-¾" hole saw 1 - ¾“孔锯
Drill press 钻床
Belt and Disc sander 带和盘式砂光机
Misc. 杂项。 Files and emory cloth 文件和埃默里布
Pliers 钳子
Pop rivet gun 波普铆钉枪
Compass 指南针
TIG Welding apparatus using 100% tungsten 1/8 inch diameter tip氩弧焊焊接设备使用100％钨1 / 8英寸直径的尖端
1-3/8"x 24 thread set tap, both Left and Right Tap. 1-3/8“× 24线程设置自来水，左，右两塔。
Material required: 材料要求：
1-3/4" x .063" x 13" Aluminum tubing 1-3/4“× 0.063”× 13“铝管
1-1/8" x .063" x 6" Aluminum tubing 1-1/8“× 0.063”× 6“铝管
1-3/4" x .1875" x 3.0" Aluminum tubing (Wall thickness may require machining for proper threading) 1-3/4“× 0.1875”× 3.0“铝管材（壁厚可能需要进行适当的螺纹加工）
1/8" x .3/4", Stainless Steel Pop Rivet, 2 ea. 1 / 8“× 0.3 / 4”，不锈钢铆钉流行，2 EA中来。
½" diameter nylon pulley (can be brass) with 1/8" shaft, 1 ea. ½“直径尼龙滑轮（可黄铜），有1 / 8”轴，1 EA中来。
2" x 2" x .5" delrin stock 2“× 2”× 0.5“聚甲醛树酯股票
1/8"x ¾" roll pin, 1 ea. 1 / 8“× ¾”滚针，电针1。
5 minute epoxy 5分钟环氧
Building the Bottom Bracket Shell 大楼底部支架壳牌
The bottom bracket shell is a 68 mm (2.66") long, thick tubular structure that contains a 1 3/8"x 24 pitch machine thread on both ends. 底部支架外壳是一个68毫米（2.66“）长，厚厚的管状结构，它包含1 1 3 / 8”× 24间距两端螺纹机。 On the right end, a left-hand thread is used. 在右边年底，左手线程使用。 The bottom bracket can be fabricated from any type of 6061 T6 aluminum, as long as the stock is 68 mm wide, has an ID of 1.33" and a wall thickness of .180" to .250". Once these dimensions are achieved, the applicable threads can be machined. For those not having the resources, this threading can be accomplished by a bicycle shop. Once the bottom bracket shell is machined and threaded, drill a 1-1/8 inch hole directly in the middle of the shell. For good results use a hole saw. Refer to the illustration below. 底部的支架可以制造任何类型的6061至T6铝，只要股价为68毫米宽，有1.33的ID“和壁厚0.180”到.250 “。一旦这些尺寸实现，适用线程可以被加工。对于那些没有资源的，这线程可以完成的自行车店。一旦中轴壳加工和螺纹，钻中间壳1 1-1/8英寸的孔中直接。对于好的结果使用孔锯。参照下图。
该文转摘于:科技爱好与博览 http://www.naf.com.cn,本文详细出处请访问以上网站.
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