Trouble configuring step-motor and driver

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07 Dec 2019 12:20 #152239 by Stubenrocker3
Hello there!

Lately I've been trying to configure a small cnc milling machine with Linuxcnc for a school project. I managed to build a configuration controlling the motors. I'm using the Mesa 7I96 board and a ball screw axis with a threat pitch of 5mm per rotation . At the Moment the motor is rotating very slowly and I'm having trouble configuring both my Driver and Linuxcnc to match the "real" speed of the axis and the displayed speed in Linuxcnc. Your help would be greatly appreciated, thank you in advance!

Here are some Important files:

The .ini and .hal files:

File Attachment:

File Name: p-seminarfraese.hal
File Size:6 KB

File Attachment:

File Name: p-seminarfraese.ini
File Size:3 KB

The data sheets of the Step motor and the Microstep driver:

This browser does not support PDFs. Please download the PDF to view it: Download PDF

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Attachments:

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07 Dec 2019 14:06 - 07 Dec 2019 18:33 #152248 by PCW
Your step scale is _way_ too low

For example if you have a reasonable microstep ratio like 16 (3200 steps/turn)
the scale would be:

16*200/5 = 640

16 = microstep ratio = microsteps/full step
200 = full steps/turn
5 = mm/turn pitch
Last edit: 07 Dec 2019 18:33 by PCW.
The following user(s) said Thank You: Stubenrocker3

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07 Dec 2019 14:53 #152255 by Stubenrocker3
Thank you! I didn't think it would be that easy :)

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