LightBurn Compatible Motherboard Upgrade for Desktop 40W Laser Engraver Cutting Machine
SKU: 64668324190

LightBurn Compatible Motherboard Upgrade for Desktop 40W Laser Engraver Cutting Machine

Sale price$179.99 Regular price$199.99
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Description

LightBurn Compatible Motherboard Upgrade for Desktop 40W Laser Engraver Cutting MachineK40 BOARD UPGRADE Download The Manual K40 LIGHTBURN COMPATIBLE: This upgraded K40 motherboard makes LightBurn work with your K40 laser engraver. The 24V K40+ control board is packed with cutting edge features to bring new capabilities to your 40W laser engraving machine. COMPATIBLE LASER ENGRAVERS: This K40 motherboard upgrade is compatible with all OMTech 40W Desktop Laser Engraving Machines. For other laser brands or custom builds, you will need a

K40 BOARD UPGRADE

Download The Manual

  • K40 LIGHTBURN COMPATIBLE: This upgraded K40 motherboard makes LightBurn work with your K40 laser engraver. The 24V K40+ control board is packed with cutting-edge features to bring new capabilities to your 40W laser engraving machine.

  • COMPATIBLE LASER ENGRAVERS: This K40 motherboard upgrade is compatible with all OMTech 40W Desktop Laser Engraving Machines. For other laser brands or custom builds, you will need a type B USB cable to connect your control computer. Also check the specifications section below to ensure pin compatibility.
  • SUPERIOR FUNCTIONALITY: This circuit board's open source Smoothie firmware comes preinstalled and preflashed on its 512MB MicroSD card, able to work with your Windows, Linux, or MacOS edition of LightBurn to create breathtakingly intricate photorealistic grayscale images as quickly and easily as standard patterns.

  • WARRANTY: No need to worry! This 40W laser machine motherboard includes a 1-year parts warranty.

Upgrade Your K40 Laser Engraver

Get more out of your K40 40W laser engraving machine with OMTech Laser's LightBurn-compatible control board! 

Purpose-built for 20W, 30W, and 40W desktop laser engravers, this circuit board comes preflashed with open source Smoothie firmware and additional signal ports that work just as well with most CNC routers. The ports handle our machines' default stepper motors and axis limits while providing support for even stronger add-on motors and vent fans if needed.

Further, this 24V logic board has dedicated ports that direct your laser head along its X and Y axes while recognizing their limit switches. This K40 upgrade also enables autofocusing, U-axis spinning for rotary axes, additional connections for add-on stepper motors, a 5V power feed, and nine 5V input/output signaling ports to handle pressurized air assists, external venting fans, and other laser engraving accessories.

Most importantly, this customized smoothieboard will allow your K40 box to work with LightBurn laser software running on any current and common operating system—Windows, Linux, or MacOS—so you can do precision grayscale work with any K40 laser cutter.

Upgrade your DIY laser engraver with the OMTech K40+ motherboard today!

Specifications:

Model: K40+

CPU Type: 32-Bit ARM Cortex-M3

Dimensions: 3.8 x 2.8 x 0.5 in. (9.8x7.3x1.2 cm)

Voltage: 24V DC

Input/Output Signals: 5V DC

Max. Frequency: 120MHz

Included Firmware: Smoothieware

Supported Software: LightBurn

Operating Temperature: 14 to 104°F (-10 to 40°C)

Net Weight: 1.7 oz. (48 g)

Warranty: 1 Year

Package Includes:

1 x K40+ Laser Engraver & CNC Motherboard

1 x 512MB MicroSD Card

1 x Instruction Manual

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 64668324190

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SickboySD
Louisville, US
★★★★★ 5
Replacement parts
Size: 19 Pcs for eufy L60/ L50 Series
Good replacement parts pack. This will last you a while.
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Reviewed in the United States on May 6, 2026
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Luis Estuardo Lima
Charlottesville, US
★★★★★ 5
It si the right fit
Size: 19 Pcs for eufy L60/ L50 Series
It si working perfectly fine it fit like a glove
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Reviewed in the United States on March 28, 2026
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Amazon Customer
Phoenix, US
★★★★★ 5
Works great
Size: normal
Works great
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Reviewed in the United States on February 14, 2026
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Angie K
Natrona Heights, US
★★★★★ 5
Get the OEM mop cloths
Size: normal
When buying accessories for my eufy robot vac, I originally got my hands on some dupe accessories because they were cheaper. However- the mop cloths did not work well. The cheap construction of the dupes caused threads to constantly come out and get tangled, causing the robot to error out. I got these OEM ones and they work MUCH better. In this case it's best to buy the OEM parts even though they are more expensive!
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Reviewed in the United States on December 29, 2025
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A R
Port Orchard, US
★★★★★ 5
Perfect
Size: normal
Needed more sets because I like to wash the pad after each use. Quality is very good.
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Reviewed in the United States on April 4, 2026

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