[Crevice Reamer]

You need to understand: Pulse Per Second is different from RPM or IPM.

Each pulse will move the motor one step. At FULL step, (200 per revolution) and with 5 TPI ball screws, It will take 1000 pulses to move the table one inch, and 10,000 pulses to move the table 10 inches. To move the table ten inches in one MINUTE will require 10,000/60 or approximately 167 pulses per second.

2000 pulses per second would equal 120 IPM table movement.

Bear in mind that to get maximum speed, your motors need to be wired in bipolar parallel and powered with best power supply voltage. Formula for best power supply voltage = 32 times the square root of motor inductance.

CR.

[HackMax]

You need to understand: Pulse Per Second is different from RPM or IPM.

Each pulse will move the motor one step. At FULL step, (200 per revolution) and with 5 TPI ball screws, It will take 1000 pulses to move the table one inch, and 10,000 pulses to move the table 10 inches. To move the table ten inches in one MINUTE will require 10,000/60 or approximately 167 pulses per second.

2000 pulses per second would equal 120 IPM table movement.

Bear in mind that to get maximum speed, your motors need to be wired in bipolar parallel and powered with best power supply voltage. Formula for best power supply voltage = 32 times the square root of motor inductance.

CR.

Super information!! Thank you! That was the information I was looking for. 120 IPM is way out there so maybe I should get the 425s since I will be starting out with the acme screws that came with the mill. Now I have some idea on how to figure out what I need to get.

Rick