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#STEPPER MOTOR RESOLUTION CALCULATOR FULL#If we went with 360 as velocity and 1 as acceleration, then it would take 1 second to get to full speed and 1 minute to rotate 1 time. So if you were to go with 1 as velocity and 1 as acceleration, the speed would ultimately be the same and you would take 360 minutes to get to 1 rotation. So if moving 360 inches(degrees) it would take 360 seconds to get to full speed. This means that 1 full rotation would take 360 minutes.Īcceleration = Mach 3 screen says inches or millimeters per second / per second(actually degrees per second per second) This means that if I wanted to accelerate to full speed and if I set acceleration to 1, the axis would move to full speed by increasing the speed every second by 1 inch (degree) per second. If set to 1, that would mean that the axis would rotate 1 degree every minute. Velocity = Mach 3 screen says inches or millimeters per minute(Actually degrees per minute). Velocity and Acceleration values are not exact, at least I cannot find a way of calculating the exact ones needed. I had to fiddle with this to get the reaction I expected. Next is to tune the motor for the correct movement. The steps per degree is what you need to enter into Mach 3 to control correctly. Steps per degree = 555.5556 (10*100/1.8=555.5556) Microstep resolution*Gear ratio/Degrees per step of actual stepper Steps per revolution with microstepping = 2000 (200*10=2,000) steps per 1 revolution, multiplied by microstep resolution. #STEPPER MOTOR RESOLUTION CALCULATOR MANUAL#Here is the link to the manual for the leadshine controller. #STEPPER MOTOR RESOLUTION CALCULATOR DRIVER#Stepper is a Chinese NEMA23 rated at 3 ampsĬontroller used: CNCRP stepper driver which is a leadshine stepper controller, or a clone. The velocity settings are not 100% either, but are closer to the actual settings than not.ĭepending on your stepper driver, gear ratio and microstepping settings and stepper motor amperage. ![]() You can work with the actual hardware and the sounds it starts making to determine a better setting for your setup. But gives a rough estimate of settings to try out. The acceleration is just guesswork at this point. I have included links to resources I used as well as a google sheet that will allow you to calculate the settings needed for the Mach 3 motor tuning page. This weekend I decided to do the math needed as well as the research to get this thing going. Once connected, I used my MPG to step the motor and it turned while making a terrible noise. That was easy enough because the wires matched colors on both sides. There’s no need for me to reiterate what the excellent Klipper documentation also mentions, so if you’re looking for more information, I recommend checking out the official documentation.Last week, while waiting for something else to finish, I decided to wire up my 4th axis. For more accurate calibration of the final rotation_distance for the extruder, use the “ measure and trim” method. Please note that this way of calculating the rotation distance value gives you an approximation of the final value based on the E steps provided. So, the value for the BMG extruder will be 7.710. I recommend using three decimals for the calculated extruder rotation distance. Now, we take this value and add it under the section of your printer.cfg file. This translates into a rotation distance of 7.710843373493976. Let’s take the popular BMG Extruder which has an E step value of 415 when combined with a regular 1.8-degree stepper motor and the stepper driver is set to 16 microsteps. ![]() The formula for calculating the extruder rotation distance value to be used in the printer.cfg file is the following: rotation_distance = * /
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