Categories
cnc router

How to operate after loading G code in mach3

When reset does not flash, press cycle start (shortcut key Alt+R) to start

Categories
cnc controller

Use of G code in Mach3

Q:Enter the command G54 x0 z0 in Mach3. The operation is not to zero the current positions of x and z, but to move the x and z axes to the (0, 0) position. What if I want to set the workpiece coordinate system in mach3? How to use the drilling command G73 XYZRLQ in macn3

R:The value of G54 should be preset and stored in mach. G54 means to make the current coordinate system the relative value of the preset coordinate system. You input G54 X0Z0, it is actually a two-step operation, G54, then G01 X0Z0

Categories
cnc controller

Adjust the direction of each axis of mach3

In the setting, the origin limit is set. Find the beginning of the setting origin H and hit √ or × to change the direction back to the mechanical origin

Categories
cnc controller

How does mach3 automatically tap

If you realize mach3 automatic tapping, you need to install the limit switch and write the VB script, then the tool can return to the mechanical origin. VB script is similar to Z-axis tool setting

Categories
cnc controller

Calculate the a-axis pulse of the engraving machine

Mach3, USBCNC system setting: the number of pulses required for 1 degree
(Number of pulses per motor revolution × fine fraction of driver × reduction ratio) ÷ circumference
For example, two-phase motor, subdivision number 16, reduction ratio 5:1
(200×16×5) ÷360=16000÷360=44.44444444

Categories
cnc controller

Does mach3 have RTCP function

Mach3 does not have the five-axis linkage of RTCP. In fact, it only links the bai3 axis. The mach3 system only performs three-axis interpolation. The specific rotation calculations are implemented in the post-processing of the programming software. The actual rotation is to rotate a bit to the left of the rotation axis and then perform XYZ. Three-axis interpolation. Rotate the axis coordinates a little bit and interpolate again. The result is that the G code is quite large, and the curved surface is not a continuous movement into a stepped movement.

Categories
cnc controller

Set the coordinate value of the Z axis of the MACH3

Same as other axes, it should be calculated and set according to the transmission ratio and subdivision number. Upward is positive and downward is negative.

Categories
cnc controller

modify the rotating coordinates of MACH3 A axis to linear coordinates

This can’t

Categories
cnc router

How to adjust the return direction of each axis of mach3

In the setting, the origin limit is set. Find the beginning of the setting origin H and hit √ or × to change the direction back to the mechanical origin

Categories
cnc controller

Machine zero point, machine reference point, and machine origin

Machine zero (machine origin): The design origin of the machine coordinate system (du-intrinsic coordinate system on the machine), and its position on the mechanical hardware is determined by the manufacturer. It is the origin of the machine tool coordinate system and a fixed point on the machine tool. It is not only the reference point for establishing the workpiece coordinate system on the machine tool, but also the reference point for machine tool debugging and processing.

With the different types of CNC machine tools, the machine origin is different. Usually the machine origin of the lathe is set at the intersection of the chuck end face and the spindle center line, while the machine origin of the milling machine is set in the positive direction of the three axes of the machine X, Y, and Z. Sports extreme position.

Machine reference point: The machine tool zero point is not known when the numerical control device is powered on. In order to correctly establish the machine tool coordinate system when the machine tool is working, a machine tool reference point (measurement starting point) is usually set within the movement range of each coordinate axis. , Usually go back to the reference point automatically or manually to establish the machine coordinate system and activate the parameters.
In CNC machine tools, there is also a clear understanding of the definition of the machining coordinate system and the meaning of tool setting.

Categories
cnc router

origin of the workpiece and mechanical origin

The machine origin is the origin of the machine coordinate system, which is set when the machine manufacturer produces the machine;
The working origin is set by the operator when machining parts, and it is also the origin used in programming

Categories
cnc router

How to use mach3 to quickly set the knife

During Z knife setting, one end of the fish mouth bai is clamped on the PCB in contact with the copper foil, and the other is clamped on the tool du. When the “Z knife setting” button is pressed, the Z axis automatically moves the knife at the speed of F100. The moment the tool tip touches the PCB, that is, when pin 13 of the parallel port changes from high level to low level, the cutting stops, the Z axis automatically raises the tool 20 after the Z coordinate is automatically reset, and the Z tool setting is completed.
To set the knife in MACH3, you must use VB script to proceed.