Scaling problem -GcodeCNCDemo4AxisCNCShield

[jnk_ws]

Hello,

I am new here in the forum. I downloaded your code “GcodeCNCDemo4AxisCNCShield” to control my CNC milling machine. The milling machine is driven with a M8 threaded rod (pitch 1.25mm). The motors are in half-step mode. I have made the following settings in the software:

#include <Arduino.h>
#define VERSION              (2)                      // firmware version
#define BAUD                 (115200)                 // How fast is the Arduino talking?(BAUD Rate of Arduino)
#define MAX_BUF              (64)                     // What is the longest message Arduino can store?
#define STEPS_PER_TURN       (400)                    // depends on your stepper motor. Motor wird im Halbschritt betrieben
#define STEPS_PER_MM         (320)                // M8 Gewindestange = 1,25mm Steigung
#define MAX_FEEDRATE         (1000)
#define MIN_FEEDRATE         (1)
#define NUM_AXIES            (8)

Nevertheless, the resolution on the axes does not fit. Can someone help?

Greetings
Janik

[Dan]

Can you tell the motors to move enough to turn the screw one, exactly?

[Author]

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