OK, I need someone to check my logic and math here. If I'm thinking right: Z Resolution = Z Screw Pitch / 360 * Motor Step Angle / # of Micro-stepps of Motor Driver M8 threaded rods have a pitch of 1.2 My motors have a step angle of 1.8 My my drivers are set for 16th steps. My threaded rods are attached directly to my motors with a coupler. (No belts or gearing that change ratio between motor and screws.) 1.2 / 360 * 1.8 / 16 = 0.000375 My Z resolution is 0.000375 mm. That the minimum distance my Z axis can move. I want my layer height to be a multiple of this and within the constraints of my nozzle size. Dose all that hold water? https://reprap.org/forum/read.php?4,390232,390232#msg-390232 Wed, 07 Oct 2026 21:01:32 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?4,390232,391816#msg-391816 https://reprap.org/forum/read.php?4,390232,391816#msg-391816 Dust Reprappers Thu, 07 Aug 2014 02:04:04 -0400 https://reprap.org/forum/read.php?4,390232,391525#msg-391525 https://reprap.org/forum/read.php?4,390232,391525#msg-391525 Ralph.Hilton Reprappers Wed, 06 Aug 2014 09:02:41 -0400 https://reprap.org/forum/read.php?4,390232,391375#msg-391375 https://reprap.org/forum/read.php?4,390232,391375#msg-391375 appdev007 Reprappers Tue, 05 Aug 2014 23:14:41 -0400 https://reprap.org/forum/read.php?4,390232,390297#msg-390297 https://reprap.org/forum/read.php?4,390232,390297#msg-390297
[calculator.josefprusa.cz]]]> fbnr Reprappers Sat, 02 Aug 2014 06:54:14 -0400 https://reprap.org/forum/read.php?4,390232,390243#msg-390243 https://reprap.org/forum/read.php?4,390232,390243#msg-390243
m8 have a thread pitch of 1.25, NOT 1.2

you have a resolution of 0.000390625

you have 200 steps per revolution (1.8 degrees steppers)
you have 1/16 microstepping so 16 * 200 = 3200 steps per revolution
a revolution moves 1.25mm

1.25/3200 = 0.000390625 mm per step.]]> Dust Reprappers Fri, 01 Aug 2014 23:47:21 -0400 https://reprap.org/forum/read.php?4,390232,390232#msg-390232 https://reprap.org/forum/read.php?4,390232,390232#msg-390232
Z Resolution = Z Screw Pitch / 360 * Motor Step Angle / # of Micro-stepps of Motor Driver

M8 threaded rods have a pitch of 1.2
My motors have a step angle of 1.8
My my drivers are set for 16th steps.
My threaded rods are attached directly to my motors with a coupler. (No belts or gearing that change ratio between motor and screws.)

1.2 / 360 * 1.8 / 16 = 0.000375

My Z resolution is 0.000375 mm. That the minimum distance my Z axis can move. I want my layer height to be a multiple of this and within the constraints of my nozzle size.

Dose all that hold water?]]> appdev007 Reprappers Fri, 01 Aug 2014 22:47:54 -0400