📘 Longer manuals • Free online PDFs

Longer Manuals & User Guides

Longer is a leading manufacturer of desktop 3D printers and laser engravers, known for its affordable and user-friendly LK series printers and RAY5 laser cutters designed for DIY enthusiasts and makers.

Tip: include the full model number printed on your Longer label for the best match.

Longer Support

Official site: https://www.longer3d.com
General support: https://www.longer3d.com/pages/support
Warranty & registration: Warranty info
Support email: support@longer.net
Contact form: Contact manufacturer support

Longer manuals

Latest manuals from manuals+ curated for this brand.

Longer LK4 PRO FDM 3D Printer Instruction Manual

June 8, 2021

K4 INSTRUCTION MANUAL Longer Safety Precautions The temperature of the nozzle parts can reach 250 °C during the operation of the machine. To ensure your safety, it is forbidden to…

LONGER LASER B1 40W Quick Start Guide

Quick Start Guide

This Quick Start Guide provides essential information for setting up and operating the LONGER LASER B1 40W laser engraver, including safety precautions, specifications, component details, software usage, and troubleshooting tips.

LONGER Laser B1 40W Quick Start Guide - Setup and Operation

Quick Start Guide

Get started quickly with the LONGER Laser B1 40W laser engraver. This guide provides essential information on setup, safety, operation, and troubleshooting for your device.

LONGER Laser Engraver B1 40W: Quick Start Guide and Installation

Quick Start Guide

Get started quickly with your LONGER Laser Engraver B1 40W. This guide covers essential safety information, a product overview, packing list, and step-by-step installation instructions for easy setup.

LONGER LASER B1 20W/30W Quick Start Guide

Quick Start Guide

This Quick Start Guide provides essential information for setting up and operating the LONGER LASER B1 20W and 30W laser engravers, covering safety, assembly, software, and troubleshooting.

LONGER LASER B1 Quick Start Guide: Safety, Specifications, and Operation

Quick Start Guide

This Quick Start Guide for the LONGER LASER B1 laser engraver (20W/30W) provides essential safety information, detailed product specifications, machine assembly and operation instructions, software guides for LaserGRBL and LightBurn,…

LONGER Laser B1 Engraver Quick Start Guide (20W/30W)

Quick Start Guide

Comprehensive quick start guide for the LONGER Laser B1 engraver (20W/30W). Covers essential safety information, laser class definitions, parts identification, packing list, and detailed step-by-step installation instructions.

LONGER B1 Engraving Machine Touchscreen User Guide

User Guide

User guide for the LONGER B1 engraving machine touchscreen, covering packing list, installation, firmware updates, importing configuration files using LightBurn and LaserGRBL, understanding the user interface, and connecting to the…

LONGER Nano Pro Laser Engraver User Manual: Setup, Operation & Safety Guide

User Manual

This comprehensive user manual provides detailed instructions for the LONGER Nano Pro Laser Engraver. Learn about safety precautions, product specifications, quick installation, software operation with LaserGRBL and LightBurn, and mobile…

LONGER Nano Laser Engraver User Manual: Setup, Operation, and Safety Guide

User Manual

This comprehensive user manual provides detailed instructions for the LONGER Nano Laser Engraver. It covers essential safety precautions, product specifications, quick installation steps, software operation guides for LaserGRBL and LightBurn,…

LONGER RAY5 Laser Engraver User Manual: Setup, Operation, and Safety Guide

User Manual

Comprehensive user manual for the LONGER RAY5 Laser Engraver, covering safety, specifications, operation, software setup (LaserGRBL, LightBurn), and maintenance.

LONGER Laser Engraver B1 20W/30W Quick Start Guide

Quick Start Guide

This document provides a quick start guide for the LONGER Laser Engraver B1 (20W/30W), covering essential safety information, product introduction, packing list, and step-by-step installation instructions.

Quick Install Limit Switch Instructions for LONGER RAY5 Laser Engraver

installation guide

Step-by-step guide for installing limit switches on the LONGER RAY5 laser engraver, including firmware and configuration updates.

Longer manuals from online retailers

LONGER Ruby Ultimate Pulsed Infrared Laser Module (20W) Instruction Manual

Laser Engraver Module • February 28, 2026

Comprehensive instruction manual for the LONGER Ruby Ultimate Pulsed Infrared Laser Module (20W), covering setup, operation, maintenance, troubleshooting, and specifications for optimal performance with Laser B1 and RAY5…

Longer RAY5 Mini Laser Engraver (3.5W) Instruction Manual

RAY5 Mini 3.5W • February 28, 2026

Comprehensive instruction manual for the Longer RAY5 Mini Laser Engraver (3.5W), covering setup, operation, maintenance, troubleshooting, specifications, and support information.

Longer RAY5 20W Laser Engraver Machine User Manual

RAY5 20W • February 26, 2026

Comprehensive instruction manual for the Longer RAY5 20W Laser Engraver Machine, covering setup, operation, maintenance, troubleshooting, specifications, and support.

Longer Laser B1 20W Engraver Instruction Manual

B1 20W • February 23, 2026

Comprehensive instruction manual for the Longer Laser B1 20W Engraver, covering setup, operation, maintenance, and safety guidelines for precision laser cutting and engraving.

Longer RAY5 10W Laser Engraver Instruction Manual

RAY5 10W • February 19, 2026

Comprehensive instruction manual for the Longer RAY5 10W Laser Engraver, covering setup, operation, maintenance, troubleshooting, and specifications.

LONGER LK5 Pro 3D Printer User Manual

LK5 Pro • February 16, 2026

Comprehensive user manual for the LONGER LK5 Pro 3D Printer, covering setup, operation, maintenance, troubleshooting, and specifications for optimal performance and creative projects.

LONGER Ray5 Mini 3.5W Laser Engraver User Manual

Mini 3.5W • February 12, 2026

Comprehensive instruction manual for the LONGER Ray5 Mini 3.5W Laser Engraver, covering setup, operation, maintenance, and troubleshooting. Learn how to use your laser engraver effectively for precise engraving…

LONGER Ray5 Mini 2.5W Laser Engraver User Manual

RAY5 Mini 2.5W • February 12, 2026

Comprehensive user manual for the LONGER Ray5 Mini 2.5W Laser Engraver. Includes setup, operation, maintenance, troubleshooting, and technical specifications for optimal use.

LONGER RAY5 5W Laser Engraver Instruction Manual

RAY5 5W • February 11, 2026

Comprehensive instruction manual for the LONGER RAY5 5W Laser Engraver, covering setup, operation, maintenance, troubleshooting, and specifications for engraving and cutting various materials.

Longer RAY5 10000mW Laser Engraver User Manual

RAY5 10000mW • February 10, 2026

Comprehensive user manual for the Longer RAY5 10000mW Laser Engraver, including setup, operation, maintenance, and safety guidelines for the laser engraver, air assist kit, and honeycomb working table.

Longer Laser Engraver Rotary Roller Instruction Manual

Laser Engraver Rotary Roller • January 31, 2026

Comprehensive instruction manual for the Longer Laser Engraver Rotary Roller, covering setup, operation, maintenance, troubleshooting, and specifications for cylindrical object engraving.

LONGER Ruby Pulsed Infrared Laser Module User Manual for RAY5 Series

RAY5 Ruby • January 24, 2026

This manual provides instructions for the LONGER Ruby Pulsed Infrared Laser Module, designed for precision engraving and cutting on a wide range of materials including metals, plastics, leather,…

Longer video guides

Watch setup, installation, and troubleshooting videos for this brand.

LONGER Dual Laser Engraver: AI-Powered Engraving & Cutting Machine for DIY and Business

1:42 • 1920×1080 • feature_demo