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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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18

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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:
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  • 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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Berthav
Cuba, US
★★★★★ 5
Quality
Color: Black, Size: 7 Years, Color: Black, Size: 7 Years
Excellent quality, My son looks incredible
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Reviewed in the United States on June 5, 2026
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Lady Wescott
Lexington, US
★★★★★ 4
Sharp Looking Kids Suit With One Missing Piece
Color: Navy, Size: 7 Years, Color: Navy, Size: 7 Years
I ordered this suit for my 6yo son in a size 7 so he would have a little room to grow and get more wear out of it, and sizing is perfect. He did not need it for any specific occasion, he just wanted a suit because apparently kindergarteners sometimes wake up and decide they are businessmen now. Let me start with the positives because there are a lot of them. This is a very well made suit. The jacket, pants, and dress shirt are all surprisingly nice quality. The fabric does not feel cheap or flimsy at all. The jacket has good structure, the buttons are well attached, the seams are clean, and all the little details like the collar and pockets look great. It honestly looks like a proper little formal suit. The pants are nicely made as well and pair perfectly with the jacket. The white dress shirt underneath is also good quality and completes the whole look. Overall, it is a really sharp outfit and would absolutely work for special occasions like weddings, recitals, formal events, church, or family photos. Now for the reason I am deducting one star. The listing specifically shows and mentions that this set includes a bow tie. That was actually the main reason I chose this particular suit over others. Some options only had a standard tie or no tie at all, but my son specifically wanted a bow tie. Unfortunately, the bow tie was not included with mine. That was definitely disappointing because it was one of the main selling points for me when choosing this set. Now I have to go find a separate bow tie that matches, which I was hoping to avoid. That said, I do want to be clear that this issue does not take away from the actual quality of the suit itself. The suit is genuinely very well made and looks fantastic on him. If your child needs a suit for a wedding, formal event, recital, or something similar, this would absolutely work. My son mostly just wanted a suit because he thinks it is cool, so now he has one and can show up to school looking like the smallest CEO in kindergarten. Overall, this is a very nice quality suit set. I just wish the bow tie that was advertised had actually been included.
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Reviewed in the United States on March 10, 2026
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Liz
Phoenix, US
★★★★★ 5
Good for the price
Color: Black, Size: 10 Years
Great suit for the price and it includes the shirt which It was a great surprise
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Reviewed in the United States on May 27, 2026
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Vicki Fontana
Bozeman, US
★★★★★ 5
One size smaller is perfect!
Color: Navy, Size: 10 Years
This suit fit perfect but I did order one size smaller than my grandson normally wears. It is very well made and he can't wait to wear it in the wedding.
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Reviewed in the United States on March 19, 2026
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Laurie Rygiel
Whiting, US
★★★★★ 5
Suit
Color: Beige, Size: 10 Years
Our grandson looked so handsome!
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Reviewed in the United States on May 6, 2026

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