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Sienci LaserBeam Laser System

(35 customer reviews)



The Sienci LaserBeam is a powerful, high-quality, plug-and-play laser system for the LongMill. The LaserBeam is specifically designed to get you engraving and cutting laser safe material with your CNC machine in minutes.

The LaserBeam is designed, tested, and made in-house in Waterloo, ON. Not sure what you need to get for your LaserBeam? Try our LaserBeam Configurator Please note that this item has a lead time of 1-3 days for orders placed today. Customers can check their place in line for orders on our Order Status page All laser systems come with a G2 lens & safety glasses. Additional lenses & extra safety glasses can be purchased below or if you wish to order more than one of each lens, please check out: Depending on your version of Longmill router mount, you will be able to mount your laser assembly on the left/right side (older router mounts) or the front (newer router mounts): Mounting your Laser Resources

27 in stock


The Sienci LaserBeam is a powerful, high-quality, plug-and-play laser system for the LongMill.

The LaserBeam allows LongMill users to add a laser to their machine quickly and easily. Our LaserBeam uses high-quality components to offer a full 7 watts of power to cut and engrave materials. And of course, the LaserBeam comes with fantastic support from our technical support team.

Each system comes with:

  • Laser diode assembly
  • Laser driver
  • Laser safety glasses
  • G2 focusing lens
  • Power supply
  • Mounting hardware for the LongMill

Additional add-ons, such as laser safety glasses and lenses can be purchased here.



The LaserBeam can engrave and cut thinner materials with incredible accuracy, such as on wood, paper, leather, and plastics. The LaserBeam has been tested to cut up to 1/4″ on softwoods.


True 7-watt power

The LaserBeam offers full 7 watts of cutting power. Unlike other lasers in the market that list their power rating based on their peak pulse power that claim the same or higher power ratings, the LaserBeam can cut at 7 watts continuously.

Additional information

Weight 5 lbs
Dimensions 8 × 10 × 10 in

Technical Specifications


Laser Diode

Operating Current 4.5 @ 25°C
Threshold Current 150 – 350mA
Operating Voltage 3.7 – 5.2V @ 2.3A
Optical Output Power 7W+
Wavelength 445nm
Package TO-5
Estimated Lifespan  10,000 hours
Storage Temperature -40°C – 85°C
Operating Temperature 0 – 60°C


Laser Driver

Current Source Range 0 – 5 Amps
MAX Current Limit DIP Switch Settings 1, 2, 3, 4, 5 Amps
Compliance Voltage with 12V Adapter 8V
Current Adjustment DIP switch & Software
100 – 240 VAC 100 – 240 VAC
Minimum Control Signal ”Turn On” Voltage 2.8V
Control Signal Maximum Voltage 5V
Operating Temperature 0 to 40 °C
Storage Temperature -40 to 70 °C


Safety Glasses

Protection Range 200-500 nm
Optical Density within Protection Range OD 7+
Transmittance 30%


Safety Glasses

Laser safety glasses are a must for the safe operation of the LaserBeam and other laser equipment. These laser safety glasses are tested for use with “blue lasers” with a wavelength of 445nm and offer an optical density of OD 7+.

Safety Glasses

Protection Range 200-500 nm
Optical Density within Protection Range OD 7+
Transmittance 30%

Laser Focusing Lenses

  Every laser system comes with a G2 lens. Other lenses can add additional focusing options for your laser.

Focal length

When we talk about focal length for focusing the laser, we are talking about the point where the beam of the laser is at its finest. This is the most optimal point for cutting and engraving as it allows the full power of the laser to be concentrated at the finest point. Depending on your lens, your focal point can vary from very close (30mm) to very far (85mm). A lens with a long focal length works best for high precision engraving and uneven materials, as the beam’s diameter varies less over its distance, whereas a lens with a shorter focal length loses less power over the distance it travels from the diode to the material, making it better for cutting and high power applications.


Some of the power from the laser diode is lost as it reflects off or passes through the lens as well as when it passes through the air. Depending on the lens design, the number of lens elements it has, and the amount of distance the laser beam needs to travel through the air (based on its focal length), the overall efficiency of the lens can vary.

G2 Lens (30mm focal length)

The G2 Lens boasts an efficiency of  95% but reduced precision by increasing the beam profile and divergence. This lens maximizes the power of the diode, ideal for rapid close-range burning and cutting.

G7 Lens (85mm focal length)

The G7 lens has an 88% efficiency and long focal length. This lens strikes a balance between the precision of the 3-element and the power output of the G2, this lens serves as an exceptional all-around option.

G8 Lens (70mm focal length)

The G8 has a 90% efficiency and offers similar advantages to the G7 lens with a slightly shorter focal length.

3 Element Lens (65mm focal length)

The 3 element lens offers a tight beam with a clean profile at the cost of some output power, running at an efficiency of 70%. This lens also has a long focal length, and low divergence; making it a great precision lens.




The LaserBeam and any other laser device can cause harm to you or others. Ensure that you follow these safety guidelines

Never let the laser run unattended

Ensure that you have a fire suppression system such as a fire extinguisher nearby in case of a fire. Never leave your laser unattended. Ensure that your laser is turned off when not in use.

Ensure proper ventilation

Use the laser in a well-ventilated environment. Fumes and particulates from cutting or engraving can be harmful. We recommend having a fume extraction system or having an open door or window to provide ventilation.

Wear Eye Protection

Wear compatible laser safety goggles or glasses. Not wearing appropriate eye protection may cause permanent eye damage.

The FDA recommends no more than 5 mw to avoid eye damage. The glasses sold are rated for 0.007 mw or over 700 times better at reducing laser exposure significantly more than the minimum requirement.

Cut only laser safe materials

Never cut materials that can generate toxic fumes or are dangerous to cut, such as

  • PVC
  • ABS
  • Vinyl
  • Fiberglass

Integrated Driver Safety Features

Key Switch: This key is needed to enable the laser. Once the key switch is turned on, the laser is enabled and the key cannot come out. Only when the driver is off can You can only remove the key.

Remote Interlocks: This allows for additional switches to be added to the laser. An E-stop or other system can be implemented to shut the laser down in the case of an emergency.

Power Fault Protection: If the driver ever loses power the laser will turn off. In case of a power outage, you can have peace of mind knowing that the laser is off whenever power returns.

Emission Indicator: The small LED on the LaserBeam driver will notify you if the laser is on. This becomes useful if operating outside the visible light spectrum

Laser Use

What you Need to Operate the LaserBeam

  1. LongMill or GRBL based CNC machine with a 5V PWM output
  2. LaserBeam Product
  3. User Safety Manual:
  4. User Resources:


Why does the LaserBeam exist?

We created the LaserBeam to tackle several issues our users have had with using other laser systems with their machines:

Inconsistent performance

Many low-cost lasers advertise a high laser power, but these ratings only show the peak power of the laser module, or laser modules are using lower rated diodes that have been overclocked to output higher wattages. This results in a lower lifespan of the lasers, as well as inconsistent cutting and engraving power.

The LaserBeam is designed, tested, and rated for continual use rated at 7 watts, which means you can expect high performance and consistent results every time.

Lack of support

Many users have found that the lack of resources and support from laser suppliers has made it difficult to set up their lasers properly.

The LightBurn is plug-and-play for LongMills, as well as with additional resources and technical support to make adding a laser simple.

Can I use the laser for machines other than the LongMill?

At the time of writing, the LaserBeam system has only been tested on the LongMill. We cannot guarantee that this system will work with other devices.  However, we are planning to test compatibility with other CNC machines and systems in the future. Users that are interested in tinkering with the laser should be able to make the LaserBurn compatible with most GRBL based CNC machines and 3D printers using the TTL/PWM input system.  

When will the Laser ship?

Batch 1 Pre-orders (ordered between May 14th 2021 – November 5th 2021) have been shipped as of January 12th 2022

Batch 2 Pre-orders (November 6th 2021 – February 28th 2022) will ship before the end of February 2022.

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When do you take payment for the laser?

Payment is taken immediately when you place your pre-order.

What does my LaserBeam order come with?

Your order will come with the laser module, electronics, and hardware to attach it to your LongMill. The LaserBeam also comes with resources and guides to help you set and learn to use the laser.

Can I cancel my pre-order?

You can cancel your order with no penalty any time before your order ships. Please contact us with your order number and a request to make a cancellation. A refund will be processed through your original method of payment.

What software do I need?

The laser will be compatible with any GRBL based machine interface software that has a laser/spindle PWM control mode like gSender/UGS/CNCjs

We also recommend checking out these softwares that allow for creating gcode for laser cutting:

How thick of material can I cut?

We’ve tested the laser to cut up to 6mm or 1/4″ soft woods.

Do the Safety Goggles fit over regular glasses?

Yes they do, we cannot confirm that they will fit every frame type with every face type but it will accommodate most. 

How much will the LaserBeam cost after the Pre-order phase?

The price of the laser will remain the same: $400 CAD after the pre-order is over, the only change will be the safety goggles will cost an additional $60 CAD. 



The LaserBeam has a 90 day warranty once it’s received.

We want you to have a great experience with our products, so if any parts are found to be missing or damaged, please email us. We will ensure that you receive the support you need to restore your LaserBeam to operating condition or provide a full or partial refund.

You may cancel an order or pre-order if it has not shipped yet, please contact us if you wish to do so. We do not offer returns for LaserBeams that have already shipped.

General Warranty and Limits of Service:

Throughout this policy the words “we”, “us” and “our”, or “Sienci Labs” will be used to refer to Sienci Labs Inc. herein and “LaserBeam” or “machine” will refer to Sienci Labs’ LaserBeam Module, LaserBeam driver and LaserBeam Module Mounting Plate. Additionally, the words “you”,  “your”, “user”, and “operator”  will refer to the original purchaser/customer, user, or viewer of any of the products or media provided by or through Sienci Labs

This warranty does not cover damage due to improper use or assembly, lack of maintenance, normal wear and tear, or modifications to the LaserBeam which are not produced or authorized by the Company. 

This warranty will become void if the operator does not follow the Safety Warnings and Guidelines, uses the Product for illegal purposes, or intentionally causes damage to the Product.

The original customer must contact Sienci Labs Inc. within ninety (90) days of receiving their order to make a warranty claim to be eligible for warranty service. Proof of purchase, tracking number, email address, or other material will be used to confirm the original purchasing date and the identity of the original customer. If the damage was due to shipping, original packaging materials must be kept in the original received condition. Photos, videos, written descriptions, and other items may be requested to assess and validate a warranty claim.  In the case Sienci Labs Inc. requires the original parts to be returned, the customer is solely responsible for packing all items securely. Damage incurred during return shipping will not be covered by the warranty. A method of payment such as a credit card may be requested by Sienci Labs Inc. to cover shipping costs or damaged items if Products are not eligible for warranty service.

35 reviews for Sienci LaserBeam Laser System

Based on 35 reviews
Showing 4 of 35 reviews (4 star). See all 35 reviews
  1. DAVID CHISHOLM (verified owner)

    Some more power would be nice. Engraving takes several passes to produce satisfactory results. A quick changeout setup of the laser would be a big step forward in making me happy.
    Chris I have major concerns with the direction Sienci is taking in upgrading all the their product line. I know this is great for people entering into the CNC market but what about your present Longmill 2 clients? Or are we being leveraged to upgrade to the new products that are presently in the beta category? The CNC itself is being upgraded, spindles are now being discussed, the new longboard is now available for purchase. I really feel your legacy customers are going to be left behind.

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  2. Jack D. (verified owner)

    Assembly was easy. Learning how to turn it on and use it was difficult. Other than the learning curve (which I’m still on), the only issue I have had is that the laser causes interference with the dust shoe when the router is cutting deep (3/4″ or more). I even had the router cut through the first dust shoe when it got knocked off due to the laser pushing down on it. Once I figured out the problem, I remove the laser when not using it. It would be a nice improvement to have it slide up further or to have slots so that the bolts don’t have to be removed to take the laser off.

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  3. Jacob W. (verified owner)

    Works good, just wish it was a higher wattage for cutting.

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  4. Brian K. (verified owner)

    I have not used the laser yet but will update once I do.

    (0) (2)

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