SKU: 13699151898

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

$179.99 $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:
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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: 13699151898

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4.6 ★★★★★
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Aiden Robertson
Cuba, US
★★★★★ 5
Exceptional Quality and Value!
Size: 8.5"X11"
I recently purchased the Koala Glossy Inkjet Photo Paper and I must say, I'm thoroughly impressed. The quality of this photo paper is outstanding, providing crisp, vibrant prints every time. The 8.5x11 inch size is perfect for printing standard photos and the 48lb weight gives the paper a sturdy, high-quality feel. I've used it to print everything from family photos to professional presentations, and the results have been consistently excellent. One of the things I appreciate most about this product is the quantity. With 100 sheets per pack, it offers great value for the price. I also found the paper to be well-packaged, ensuring it arrived in perfect condition. In terms of compatibility, I've had no issues using this paper with my inkjet printer. The ink dries quickly, preventing smudges, and the glossy finish really makes the colors pop. Overall, the Koala Glossy Inkjet Photo Paper has exceeded my expectations. I would highly recommend it to anyone in need of high-quality photo paper. It truly deserves a 5-star rating!
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Reviewed in the United States on December 30, 2023
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B. T.
Alexandria, US
★★★★★ 5
Satisfied with quality used with Epson ET-8550. Last ship no box > slightly damaged corners.
Size: 11"X17"
I have had good results with the Epson ET-8550. So far I've used about 400 pages printing at the max quality settings. Now whether it is the ink or the ink in conjunction with the paper, but the prints once dry don't immediately run when splashed with water. Now I'll spray UV clear on most prints but I've been pleased with that aspect. Decent weight, good surface. The only kicker is that earlier orders arrived in boxes and those were well protected. My last order was in a just the poly bag, no box. If Koala cost cut the box, that's disappointing because many pages had their corners damaged despite delicate handle during shipping. (Har har) If you find you a corner that has been affected in shipping, what I do is feed the good end first and minimize the risk of an uneven corner causing jams. BT recommended
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Reviewed in the United States on December 17, 2025
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CJFLA
Dallas, US
★★★★★ 4
Good quality item
Size: 8.5"X11"
Good quality product at a good price.
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Reviewed in the United States on May 3, 2026
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Rare
Waukegan, US
★★★★★ 5
Thought my Paper was horrible!
Size: 11"X17"
beautiful glossy paper I purchased 110 paper from staples thinking this was going to be thinner when I received it was way thicker then staples paper was totally impressed very cardboard hard like paper, my only down fall is that I have the new inkjet printer from Brother and it never drys overtime I touch the print it comes off on my finger giving my pictures finger print's so I hav to send it back so a wonderful verified user text me and told me that I needed to change my printer to glossy setting again my printer is very new now my Koala glossy paper works amazing so its basically the best glossy paper I have ever seen and used. so I am giving this view my first 5 star rating that I have ever giving for me thats alot! Now I have to re order my paper 11x17 again lol....
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Reviewed in the United States on April 25, 2026
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Nathyn Brendan Masters
New York, US
★★★★★ 5
Great for Indy Comic and Zine Covers
Size: 11"X17"
I use both the 11x17 and 8.5x11 Koala Glossy Inkjet papers as cover stock for Night Phoenix Press mini comics and zines, most often as Kickstarter add-ons or promo items. For that role, they deliver. The gloss finish immediately gives even short-run projects a polished, professional look with the other side having a matte finish which I can flip over for sketch covers using the matte side for the exterior cover. Colors print vibrant, blacks are strong, and the surface takes ink evenly without streaking. The finish looks clean enough to pass for offset printing on both inkjet and laser printers. This paper is also great for comic covers because it can fold down the middle without splitting the gloss coating too much if at all. The 8.5x11.5 works just as well for minis, one-shot zines or inserts. Between the two sizes, I can cover nearly every indie project format I need. They have just enough weight to feel like a true cover while still running smoothly through an inkjet printer. These books are often handled by backers or used as handouts, so durability matters. The stock holds up, though glossy paper can pick up fingerprints or light scuffs if stacked loosely. Bagging finished copies or boxing them quickly solves that. For the cost, it’s a dependable option that makes Kickstarter rewards and promo zines look far more professional than plain paper covers. For creators producing indie comics, add-ons, or zines on a budget, this paper is one of the easiest ways to elevate presentation without driving up printing costs. -Nathyn Brendan Masters
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Reviewed in the United States on October 2, 2025

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