Thanks for the responses and the link it is helpful.
I am using the the A4988 driver so that makes it 1/16 and my my M8 lead screws have a 2mm pitch so using the link above (thanks kd6hq) to apply the equation:
steps_per_mm = (motor_steps_per_rev * driver_microstep) / thread_pitch I get (200*16)/2=1600 which should be right but we know that doesn't work.
So this is where I leaned something today. Obewan mentioned a M8 4 start lead screw (which is what I have). What I did not realize is that 4 start means there are 4 threads running together so that a 2mm pitch is really 8mm so that I need (200*16)/8=400.
I will play with this setting to see how it works.
I am using the the A4988 driver so that makes it 1/16 and my my M8 lead screws have a 2mm pitch so using the link above (thanks kd6hq) to apply the equation:
steps_per_mm = (motor_steps_per_rev * driver_microstep) / thread_pitch I get (200*16)/2=1600 which should be right but we know that doesn't work.
So this is where I leaned something today. Obewan mentioned a M8 4 start lead screw (which is what I have). What I did not realize is that 4 start means there are 4 threads running together so that a 2mm pitch is really 8mm so that I need (200*16)/8=400.
I will play with this setting to see how it works.