步距角:1.8弧长（pitch）：3.6齿数n分度圆直径D此列应为整数11.1459155936022.29183118118033.43774677112044.5836623619055.7295779517266.8754935426078.02140913251.4285714389.16732472245910.31324031401011.4591559361112.6050714932.727272731213.75098708301314.8969026727.692307691416.0428182625.714285711517.18873385241618.3346494422.51719.4805650321.176470591820.62648062201921.7723962118.947368422022.91831181182124.064227417.142857142225.2101429916.363636362326.3560585815.652173912427.50197417152528.6478897614.42629.7938053513.846153852.弧长L：这里说的弧长就是端子铁壳等料带Pin孔的Pitch,L=pitch3.分度圆直径：∏d=L*n4.只要在步距角和弧长处输入数值就可以计算(步距角：选择步进马达的一项参数；弧长：料带孔间距)说明：此处1.齿数n：棘轮上的齿数一定是圆周（360度）之整数倍。两个齿的夹角（360度/2730.9397209413.333333332832.0856365312.857142862933.2315521212.41379313034.37746771123135.523383311.612903233236.6692988911.253337.8152144810.909090913438.9611300710.588235293540.1070456610.285714293641.25296125103742.398876849.729729733843.544792439.4736842113944.690708029.2307692314045.8366236194146.98253928.7804878054248.128454798.5714285714349.274370388.3720930234450.420285978.1818181824551.5662015684652.712117157.8260869574753.858032747.6595744684855.003948337.54956.149863927.3469387765057.295779517.25158.44169517.0588235295259.587610696.9230769235360.733526286.792452835461.879441876.6666666675563.025357466.5454545455664.171273056.4285714295765.317188646.3157894745866.463104246.2068965525967.609019836.1016949156068.7549354266169.900851015.9016393446271.04676665.8064516136372.192682195.7142857146473.338597785.6256574.484513375.5384615386675.630428965.4545454556776.776344555.3731343286877.922260145.2941176476979.068175735.2173913047080.214091325.1428571437181.360006915.0704225357282.505922557383.651838094.9315068497484.797753684.8648648657585.943669274.87687.089584864.7368421057788.235500454.6753246757889.381416044.6153846157990.527331634.5569620258091.673247224.58192.819162814.4444444448293.9...
