What Is a Home Switch?

The component labeled as "Limit Switch" on OMIOCNC machines is actually a Home Switch. It is used to determine the origin of the mechanical coordinate system. Its primary function is to let the machine know its current position, so homing (returning to the origin) must be performed before every job to ensure accurate positioning.

Factory Testing & Important Notes

Every machine is thoroughly tested before shipment. If the machine does not respond normally, you can reinstall the software and settings files. After completing the setup, do not make any additional adjustments to Mach3.

Why the Home Switch Doesn't Work – Three Steps to Check

If the homing function............

Recommended Ventilation & Coolant Guidelines for X8-2200L & X8-2200EPL CNC Routers

This series consists of desktop CNC routers equipped with water-cooled spindles. The X8-2200L connects to a computer via USB, while the X8-2200EPL uses a built-in standalone offline controller. Below are the recommended ventilation, cooling, and dust collection specifications for indoor or school laboratory environments.

1. General Room Ventilation

• Temperature: Maintain 18–25 °C; avoid exceeding 30 °C.
• Humidity: Maintain 40–70% RH; prevent condensation.
• Clearance: Leave at least 30 cm (12 inches) of space around the machine to ensure adequate airflow.
• Air Exchange: Provide 6–10 air changes per hour (ACH) in the room.

2. Spindle Cooling (Water-Cooled)

• Coolant: Use clean deionized or distilled water mixed with a corrosion inhibitor. Replace............

Using the Z-Probe (Auto Tool Zero Device)

When machining flat plate materials, the Z-probe (also called an auto tool zero device or touch plate) helps you perform Z-axis tool setting quickly and conveniently. However, you must strictly follow the operating steps below; otherwise, the probe or the cutting tool may be damaged.

Step-by-Step Instructions

1. Insert the Z-probe and measure its thickness.
   Plug in the Z-probe cable. Measure the actual thickness of the touch plate using a caliper, and enter that thickness value into MACH3 (in the appropriate settings field).
2. Test the Z-probe (perform this test every time before actual use).
   Turn on the POWER switch. Clear the X, Y, and Z axes to zero. Click the "Auto Tool Zero" button in the software interface. The Z-axis will slowly move downward. Briefly touch the metal clip to the surface of the touch plate — the Z-axis should stop moving down and then rise by 10 mm. This confirms the probe is working............

OMIOCNC Offline Controller Parameter Definition Guide

This document defines all editable parameters for the OMIOCNC offline controller. The parameter file is fully editable but must follow the formatting rules below. Each parameter has a predefined default value and a valid range — please stay within the specified range. If you are unsure about a parameter's purpose, keep the default value.

Parameter File Editing Rules

• Only one parameter per line.
• Format: #parameter_number=value. The # must be the very first character on the line, followed immediately by the parameter number, then =, then the value.
• Any explanatory text after the value assignment is optional and unrestricted.
• Each parameter has a defined assignment range — strictly follow the specified range.
• Each parameter comes with a preset default value. Keep the default............

How to Troubleshoot the WSJ‑M3 Control Handle in Mach3

This guide walks you through the most common fixes for the WSJ‑M3 wireless control handle. Follow the steps in order.

Important Prerequisite

The WSJ‑M3 control handle only works when the Mach3 software is already running on your computer. If the handle does not function properly, proceed with the steps below.

1. Replace the Batteries

Install fresh AA batteries (2 pieces) in the WSJ‑M3 handle. Low battery power is the most common cause of intermittent or completely unresponsive behavior. After replacing, turn the handle back on.

2. Check Complete Installation of Mach3 Plugins and Macro Files

Many users only copy ShuttlePro.dll but forget the macro files, causing some buttons on the handle to stop working. Please verify both items below: