Rotrics Manual
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  • Rotrics DexArm User Manual V1.2
  • ✨Getting Started
    • 🎮Hands-on Guide
    • 🎨Writing/Drawing
      • Generate G-code with third-party software
    • 🎇Laser Engraving
      • ❗Important - Safety Guideline
    • 🛸3D Printing
      • Generate 3D Printing G-code with Cura
    • 🦾Teach & Pneumatic
    • 📷Computer Vision
    • 🔄Rotary Module
    • Sliding Rail Kit
      • Sliding Rail Kit Installation Guide
    • Conveyor Belt Kit
      • Conveyor Belt Kit Installation Guide
  • 💻Product Overview
    • 🗺️Product Overview
    • 💾Software - Rotrics Studio
    • 🍴Accessories
      • Touchscreen
  • 🔧FAQ & Troubleshooting
    • ❓FAQs
      • Received an Error message in Rotrics Studio?
      • How to toggle developer tools on Rotrics Studio
      • How to re-calibrated DexArm or reset encoder values?
      • How to upgrade DexArm's firmware?
      • How to upgrade the touchscreen firmware?
      • How to send third-party G-code files with Rotrics Studio?
      • How to replace filament?
      • How to set Wi-Fi?
      • How to change touchscreen language?
      • How to execute SD card files?
      • Why can't I copy G-code files to the Touchscreen directly?
      • How to write/draw with different colors?
      • Why it misses part of the image when drawing?
      • How to level DexArm manually?
      • Why my 3D printing module is clogged?
    • 🔑Troubleshooting
      • “G-code sending task started...” Error
      • Laser module won't light
      • Rotrics Studio "Internal error occurred"
      • Failed to upgrade Rotrics DexArm's Firmware
      • Fix the clogged 3D printing nozzle
      • Replace the cracked case
      • How to Fix a Black Screen after upgrading the firmware?
      • DexArm couldn't connect to my computer
      • DexArm beyond limits/stuck problem
      • DexArm movement accuracy problem
      • The pen doesn't write with ink
      • 3D printing module won't heat up
      • The Arm doesn't move, only filament comes out
      • Software connect problem after safety enclosure installed
      • Safety enclosure wiring changes
  • ⌨API(G-code)
    • Introduction
    • Marlin Original Commands
      • [Marlin] G000-G001 - Linear Move
      • [Marlin] G002-G003 - Arc or Circle Move
      • [Marlin] G004 - Dwell
      • [Marlin] G020 - Inch Units
      • [Marlin] G021 - Millimeter Units
      • [Marlin] G028 - Home and StallGuard
      • [Marlin] G029 - Bed Leveling Manual
      • [Marlin] G090 - Absolute Positioning
      • [Marlin] G091- Relative Positioning
      • [Marlin] G092 - Set Position
      • [Marlin] M003 - Laser On
      • [Marlin] M005 - Laser Off
      • [Marlin] M082 - E Absolute
      • [Marlin] M083 - E Relative
      • [Marlin] M092 - Set Axis Steps-per-unit
      • [Marlin] M104 - Set Hotend Temperature
      • [Marlin] M105 - Report Temperatures
      • [Marlin] M106 - Set Fan Speed
      • [Marlin] M107 - Fan Off
      • [Marlin] M108 - Break and Continue
      • [Marlin] M109 - Wait for Hotend Temperature
      • [Marlin] M114 - Get Current Position
      • [Marlin] M200 - Set Filament Diameter
      • [Marlin] M201 - Set Print Max Acceleration
      • [Marlin] M203 - Set Max Feedrate
      • [Marlin] M204 - Set Starting Acceleration
      • [Marlin] M205 - Set Advanced Settings
      • [Marlin] M400 - Finish Moves
      • [Marlin] M410 - Quickstop
      • [Marlin] M420 - Bed Leveling State
      • [Marlin] M500 - Save Settings
      • [Marlin] M501 - Restore Settings
      • [Marlin] M502 - Factory Reset
      • [Marlin] M503 - Report Settings
      • [Marlin] M504 - Validate EEPROM contents
      • [Marlin] M906 - TMC Motor Current
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On this page
  • Table of Contents
  • Laser Engraving Workflow
  • 1. Set up for First Use
  • 2. Focus Laser Module
  • 1) With Rotrics Studio
  • 2) With touchscreen
  • 3. Set Work Height
  • 1) With Rotrics Studio
  • 2) With Touchscreen
  • 4. Generate Engraving G-code
  • 5. Start Engraving
  • 1) With Rotrics Studio
  • 2) With Touchscreen

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  1. ✨Getting Started

🎇Laser Engraving

PreviousGenerate G-code with third-party softwareNext❗Important - Safety Guideline

Last updated 4 years ago

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📅Update: 2020/08/17

Table of Contents

Tips: You can also click the TOP RIGHT table of contents to read the corresponding section​ 👉

Laser Engraving Workflow

1. Set up for First Use

2. Focus Laser Module

❗❗Notice: wear the Safety Goggles before setting up and throughout the laser engraving process!

1) With Rotrics Studio

Before your start, make sure that your DexArm is connected to Rotrics Studio.

2. Click Laserslider button at the bottom, turn ON the laser, and set power value as 1.

3. Place the engraving material below the laser module, spin the circle under laser module to focus laser module, keep spinning until you get the smallest laser spot.

❗Notice: don't touch the laser beam

4. Click OFF to turn off the laser

💡Pro Tips: If you are engraving on the same material next time, there is no need to re-adjust the focal length. If you are changing to a different material with different thickness, please re-adjust the focal length.

2) With touchscreen

1. Connect the Robot Arm to touchscreen with a Dual Type-c cable.

2. Click Laser -> HOME to initialize DexArm.

3. Click Laser ON to turn on the laser, default laser power is 1

4. Place the engraving material below the laser module, spin the circle under laser module to focus laser module, keep until you get the smallest laser spot.

❗Notice: be careful not to touch the laser beam, and wear the Safety Goggles throughout the process!

4. ClickLaser OFFto turn off the laser.

3. Set Work Height

1) With Rotrics Studio

After focusing, click Set Work Height to set this point as the work height.

2) With Touchscreen

If you used the touchscreen for focusing, go to Basic -> Set Work Height to set the current position as Work Height.

4. Generate Engraving G-code

1. ClickG-codeback to g-code pannel, select object engraving mode and upload images

2. Set image position parameters and engraving parameters and preview engraving effect.

If you have selected B&W mode, you can only upload PNG and JPG files. Refer to the following instructions for parameter adjustment:

A. Black on White: according to the image color, adjust the black and white ratio of the image. The larger the value, the higher the proportion of black, and the darker the picture.

B. Line Direction: This determines the motion direction of laser engraving. Horizontal, Vertical, Diagonal, Diagonal2. Select the direction which is consistent with the picture direction to save engraving time.

C. Density: This determines the density of the engraving. The larger the density value, the better the engraving quality and the more time it takes. The range is 1-10 pixel/mm, the recommended setting is 10.

D. Invert: swap black and white areas

If you have selected GREYSCALE mode, you can only upload PNG and JPG files. Refer the following instructions for parameter adjustment:

A. Invert: swap black and white areas.

B. Contract: This determines the contrast between light and dark colors. The larger the value, the more obvious the contrast.

C. Brightness: The larger the value, the brighter the image is 100.

E. Algorithm: select the algorithm for processing the image.

F. Density: This determines the density of the engraving effect. The larger the density value, the better the engraving quality and the more time it takes. The range is 1-10 pixel/mm, the recommended setting is 10.

If you have selected VACTOR mode, you can only upload SVG files.

3. Set laser output power and working speed.

  • Work Speed(mm/min): the speed when DexArm is engraving.

  • Jog Speed(mm/min): the speed when DexArm is moving without engraving.

Suggested Settings:

For 0.25W laser module, the suggested output power is 70%, work speed is 200mm/min, jog speed is 800mm/min.

For 2.5W laser module, the suggested output power is 60%, work speed is 250mm/min, jog speed is 800mm/min as well.

4. ClickGenerate G-codeto generate G-code.

5. ClickControl -> Set Work Hieghtto set work height.

Recommended setting HOME as work height to get the biggest working area.

💡Tips: you can click Run Boundary to preview laser engraving area after G-code generated. Move the material to locate the best engraving position.

6. Go back to G-code and click Start Send to start engraving.

💡Tips: You can download the G-code (please add suffix .gcode to the file name, otherwise, the touchscreen cannot recognize it), and copy to the SD card for touchscreen control.

5. Start Engraving

1) With Rotrics Studio

Click Start Send to start engraving.

2) With Touchscreen

A. Copy the G-code file into theg-codefolder of the touchscreen SD card.

B. Connect the Arm and touchscreen with a Dual Type-c cable.

C. ClickSD Card, choose your G-code and clickStart to start writing/drawing.

You can Pause or Stop the Arm during working.

❗Important: Read this or make sure you are using the laser module in a safe environment.

Read the to check the items, assemble the module and set up laser module for the first use. You can also watch the on our website to learn how to use DexArm.

1. Switch to Laser panel, click and click to move the arm to the HOME position (0, 300, 0)

Tips: You can get the best laser engraving results after adjusting the focal length first. As the laser power for adjusting focal length is quite low, it may not be able to engrave on the material. The laser power for actual laser engraving work will be high, you can engrave on the material.

Tips: different laser modules require different turns to adjust the focal length. Some need to turn three or four turns to see the spot change, while others only need to turn one turn to see the spot change. If you can't get the smallest laser spot, you can click the Z- / Z + buttons to adjust module height, and then spin the circle to obtain the smallest laser spot.

Note: If you are engraving on the same material next time, there is no need to re-adjust the focal length. If you are changing to a different material with different thickness, please re-adjust the focal length.

Tips: We usually set the HOME position as Work Height to get the biggest working area. If you've adjusted the z-axis value during focus, set the final position as work height instead.

We Provided several sample files for you to try with DexArm laser engraving function, click the following link to download

B&W: black and white mode, supports JPG, JPEG, PNG files.

GREYSCALE: greyscale mode, supports JPG, JPEG, PNG files.

SVG: vector mode, supports SVG files.

TEXT: enter text mode, enter text and cover to vector lines for engraving.

Note: Make sure you've set Work Height in Step 3.

Note: You can only return to the previous step or home page only when the working is completed or stopped.

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Safety Guideline
Quick Start Guide
Video Tutorials
🧙‍♂️
1) Set up for First Use
2) Focus Laser Module
3) Set Work Height
4) Generate G-code
5) Start Engraving
1) Focus Laser Module
2) Set Work Height
3) Generate G-code
4) Start Engraving
1MB
Rotrics Laser Samples.zip
archive
Rotrics Laser Sample Files V1.0