Misalignment or improper focus can lead to uneven cutting and potential burning, so make sure you properly focus the laser beam and align the paper or cardboard to ensure accurate laser-cut cardboard.

Achromatic waveplate is similar to zero order waveplate except that the two plates are made from different birefringent crystals.

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It is always a clever idea to perform test cuts on a small piece of the same material before laser cutting your full design on paper and then calibrating your machine for optimal laser-cut paper or cardboard. It is better to spend time in testing and calibrating than it is to waste both material and time on designs that are burned.

If one needs truly waterproof white reflectance coatings, there are some options. Labsphere’s Duraflect™ is a solvent based coating with a dual pigment system, which is waterproof, but has a fairly narrow wavelength range of usage. A similar coating is available from the former Optronic Laboratory (now Gooch and Housego) known as Optilon II™. Neither of the aforementioned coatings are available for customer application, primarily due to their hazardous nature.

There are a number of solutions to this problem. The traditional solution is to use a barium sulfate-based coating. The old war-horse is Eastman 6080, white reflectance coating, developed in the early 1970’s. There are a number of iterations of this coating out there (many of them developed by yours truly). Our version is called Avian-B™ white reflectance coating (the –B, cleverly enough, is for barium sulfate). This is a water/alcohol-based coating with barium sulfate and a binder. It adheres well to most metal and plastic surfaces (with a primer coat) and is both highly reflective and highly diffuse. The coating is also easily applied with a spray gun or even an air-brush for small parts. It is really the standard (and traditional) white reflectance coating. The coating is quite effective over a wide wavelength range (250- about 1300 nm, although it can be pushed out to about 2000 nm) and is 98+% reflective over a good bit of that range.

Laser cutting with a laser machine, from MaxLaser, is a modern and precise technique used to cut various materials, including paper, cardboard, leather, and wood to name but a few, with the help of a high-powered laser beam. It has gained popularity across a wide range of industries due to its ability to achieve intricate cuts and designs with remarkable accuracy and speed. The process involves using a focused laser beam to heat, melt, or vaporise the material being cut, resulting in a clean and precise cut.

by A Cosentino · 2014 · Cited by 276 — The first step is to assign the pigment to one of these color categories: white, black, blue, green, yellow, brown, red. The flowchart is likely ...

Once you have the right material, adjust the laser power. You should lower the laser cutting paper settings to the minimum required to cut through the paper or cardboard, as higher power levels generate more heat and can increase the risk of burning.

When laser cutting paper or cardboard there are a few things to keep in mind as they are highly flammable materials which tend to burn.

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Firstly, use the right material. You should use high-quality paper or cardboard that is designed for laser cutting, like bond paper or corrugated cardboard. Avoid materials with glossy coatings or additives, as they can cause excessive burning.

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To laser cut cardboard we recommend using multiple passes at lower power levels rather than a single pass at high power. You can then gradually cut through the material with your cardboard laser cutting machine without causing excessive burning.

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MaxLaser has incredible laser cutters that can create beautiful and intricate designs on paper and cardboard. Contact us today to either join the laser cutting community or upgrade your machine to one of our quality machines. You can also have a look at adding an air compressor to your existing machine.

Well, not really. There are a number of factors that must weighed before we start coating things. How much heat is your part going to take? Will it be exposed to high humidity? What wavelength range is the device being used over? The answer to each of these questions will determine the ideal coating for your device.**

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It is important to optimise your cutting speed. By increasing the cutting speed, you reduce the amount of time the laser interacts with the material. Faster cutting can minimise heat buildup and prevent potential burning.

Last, but not least is to keep your laser cutter well-maintained. This includes cleaning the lenses and mirrors. A well-maintained laser cutting machine ensures a more precise and controlled cutting process.

MaxLaser specialise in delivering comprehensive “business-in-a-box” solutions suitable for home and industrial applications. Our commitment is to support our clients in achieving success in their business endeavours.

Laser cutting paper or cardboard without burning is possible. You can create intricate designs on any suitable type of paper or cardboard, you just need to make sure to remember to…

As we mentioned, cutting paper or cardboard with a laser cutter can be a tricky task, as the material is highly susceptible to burning due to its low heat resistance. However, with the right settings and techniques, it is possible to achieve clean cuts without significant burning and without wasting materials. Here are some tips to show you how to laser cut paper without burning it:

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The downside of barium sulfate coating is that it is quite fragile and the binder is water-soluble. In addition, humidity affects the reflectance, especially in the NIR (near infrared). So while barium sulfate is good, it’s not perfect for every application. There are some alternatives. One is our Avian-D™ (-D for durable) white reflectance coating. Avian-D™ is also a water-borne coating, but with a polyurethane binder and a different pigment system. This coating was originally developed for outdoor use but we’ve found that it has numerous uses in place of barium sulfate. It is much more tenacious and is harder to rub off. And the reflectance is essentially equivalent to barium sulfate. The major drawback is a shorter wavelength range (really from about 320-1250 nm). And it is not totally water-proof; it’s water resistant (in other words, it wets, but when it dries it retains its original properties).

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** by devices, we mean integrating spheres, boxes, cavities, and any myriad of other optical components- baffles, port plugs, port frames, etc.

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Make sure your laser cutter is well-ventilated to remove fumes and smoke generated during the cutting process. Proper ventilation can reduce the chances of burning due to smoke buildup.

Whether you know exactly what you want or need help deciding – talk to one of our technical experts to get your business idea off the ground today!

So you’ve got a device and you need to make it get from point A to a lot of other points with a minimal loss and as diffusely as possible. What does one do? Well, obviously, you paint the reflecting surfaces white, with a surface coating that is ‘white’ and matte- that’s simple enough! Or is it?

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Now, suppose you have a system where you can’t use a coating. Maybe it’s a small part that you can’t get inside to spray the coating (these coatings all need to be applied in multiple- usually 15-20 coats) or the device will be seeing fairly high temperatures (say extended time at >100°C). What can you do? The solution is not a coating but a material, sintered PTFE, known variously as Spectralon™, Fluorilon™, and other trade names. They are all derived from work done by Vic Weidner at NIST in the early 1980’s but extended upon and patented by the author in the late 1980’s. We’ll cover sintered PTFE in the next blog offering. It’s a long and fascinating story…

Oct 6, 2020 — ... lens that uses other optical methods to elongate the focal range to a degree. If you're planning to get involved with the PanOptix trifocal ...

In case you have not tried it, you could give “Masking” a try. Masking is when you use masking tape on the surface of the paper or cardboard before cutting. The masking tape can help protect the material from burning and leave cleaner edges.

Make use of an air assist feature with your laser cutter, which can be found at MaxLaser.  It blows a stream of air across the cutting area, which helps to remove smoke and debris, reducing the chances of burning.