Ramps 1.4 1.8 stepper motor extrusion calculation

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Ramps 1.4 1.8 stepper motor extrusion calculation

According to the description, the drive gear you have has a 10.8mm diameter. This means that (in the ideal case) one full rotation of the drive gear will advance a length of filament equal to its circumference, which is pi x 10.8mm or approximately 33.93mm.

Your motor rotates 1.8 degrees per step, so it takes 360 / 1.8 = 200 steps for a full rotation. Since you are using 16x microstepping, this is multiplied to 200 x 16 = 3200 steps.

You thus end up with a steps per mm value of 3200 / 33.93 = 94.31 steps/mm.

You might need to calibrate this further, for instance by extruding a set length of filament (e.g. 100mm) and measuring how much is actually extruded, and then compensating the steps/mm value to get you closer to the desired 100mm. A simple way to measure this is to put a mark on your filament at 150mm from the extruder, and then (after extruding 100mm) measure how close the mark is to the extruder (which should be 50mm) However, this theoretically computed value should be a good starting point. Note that the speed you do this test at should be close to your normal printing speed, since extruding at a much higher (resp. lower) speed will falsely lead you to believe you are underextruding (resp. overextruding).

Cloudray Stepper Motor Series has set the standard for quality, reliability, and durability in stepping motors. The precision of our Torque Power motors is matched only by the dependability of their performance. All Torque Power motors are bi-directional and totally enclosed with permanently lubricated ball bearings for long-lasting, smooth operation.
4 Axis Nema 34 Stepper Motor

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Thanks to a robust design they can be selected for the harshest environments. Precise, open-loop, speed and position control can be achieved with the application of full step, half step, or microstepping electronics.
4 Axis Nema 34 Stepper Motor
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Stepping angle is adjustable( rang in 18°±5%), 0.9 °stepper motor's stepping angle is smaller, fineness is higher and positioning is more accurate.Avoiding vibration,runs more smoothly and gets lower noise.
4 Axis Nema 34 Stepper Motor
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High quality materials including bearings and shaft made in Japan
Robust assembly, high speed range, and exceptional performance in even the harshest environments make Cloudray Stepper Motors the perfect solution for demanding positioning applications.
4 Axis Nema 34 Stepper Motor

Short length and light weight allow them to be used in highly integrated systems

4 Axis Nema 34 Stepper Motor
4 Axis Nema 34 Stepper Motor
4 Axis Nema 34 Stepper Motor
4 Axis Nema 34 Stepper Motor
Stepper motor application
Cloudray stepper motor and Stepping Motor Driver are widely used in engraving machine, cutting plotter, textile machine, 3D printer, medical devices,stage lighting equipment, robot, CNC machine, music fountain and other industrial automatic equipment.
4 Axis Nema 34 Stepper Motor
4 Axis Nema 34 Stepper Motor
4 Axis Nema 34 Stepper Motor

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