RichAuto RichAuto-AutoNow-B15, User Manual, Page: 71 / 82

Beijing RichAuto S&T Co., Ltd.
65

Pulley&belt drive
：
d
：
Pulley diameter
PS6.1.2 Linear axis pulse equivalent computing method
For example: the stepper motor driver dialed code is 1600 pulse/rev.

Screw drive
screw pitch=5mm
，
pulse equivalent= =320

Rack drive
rack module
：
1.25, gear teeth number
：
23, π
：
3.141592654, transmission ratio
：
1/5(0.2)
helical angle
：
19°31′42″
（
≈19.52833333°
）
Straightrack
Pulse equivalent= = 88.573
Helical rack
Pulse equivalent=
= = 83.478
NOTES
：
1.25×23×3.141592654×0.2= 18.0641577605
cos
（
19.52833333
）
= 0.94247630504668681677372940102406
1.25×23×3.141592654×0.2÷cos
（
19.52833333
）
=19.1666969915≈19.1667