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How to Laser Cut MDF

MDF, or medium-density fiberboard, is a versatile wood product used for various applications. It is made of wood fibers glued together under high pressure and heat to create a strong, sturdy board. MDF is an inexpensive alternative to solid wood and can be cut with a laser cutter to create intricate designs

However, there are some things you should know before you start laser-cutting MDF. In this blog post, we will cover 5 major issues of concern when laser cutting MDF. By the end of this post, you will know how to avoid these issues to produce high-quality results.

5 major issues of concern when laser cutting MDF

  1. MDF emits harmful fumes when cut with a laser cutter. These fumes can be dangerous to your health if inhaled, so it is important to work in a well-ventilated area and wear a dust mask when cutting MDF.
  2. MDF produces a lot of dust when cut with a laser cutter. This dust can clog the filter on your laser cutter and cause the machine to overheat. It is important to clean the filter on your laser cutter after each use and regularly clean the area around your machine to prevent dust.
  3. The edges of MDF can be very sharp after they are cut with a laser cutter. These sharp edges can easily splinter and cause injury, so it is important to sand down the edges of your MDF before using it.
  4. Laser cutting produces a lot of heat, which can cause the MDF to warp or delaminate if it is not cooled properly. It is important to cool the MDF immediately after cutting and allow it to air dry before using it.
  5. MDF is flammable and should not be cut with a laser cutter that does not have proper ventilation. If you are working in an enclosed area, it is important to have a fire extinguisher on hand in case of an accident.


Laser cutting MDF can be tricky, but by following these tips, you can avoid the most common issues associated with this process. Keep these things in mind the next time you need to cut MDF, and you will produce high-quality results every time!

Medium-density fiberboard MDF is a composite wood that breaks down hardwood or softwood residuals into wood fibers. Adhesives are added to the wood fibers to create a very dense board. MDF is an excellent material for a laser cutter because it cuts cleanly, doesn’t splinter, and has a smooth finish.

Here are the five steps you need to follow to laser-cut MDF

Step One: Choose the Right Design Software

The first step in laser cutting MDF is choosing the right design software. If you’re unsure which software to use, don’t worry—we’ve covered you. Check out our blog post on the best design software for laser cutting to find out which program is right for you and your project.

Step Two: Prep Your File for Laser Cutting

Once you have your design file ready, the next step is to prep it for laser cutting. This involves adding registration marks and converting all fonts to outlines. Registration marks are small crosses or Xs in each corner of your design file. They help the laser cutter align your design on the material so that it cuts in the right place. Converting fonts to outlines ensures that your text will be cut correctly since different computers have different fonts installed. Not sure how to do this? Check out our blog post on prepping files for laser cutting.

Step Three: Set Up Your Laser Cutter

Now it’s time to set up your laser cutter! You first need to unpack your machine and ensure that all parts are accounted for. Once you have everything, follow the instructions in your user manual to assemble your machine. Once your machine is assembled, install the software that came with it on your computer. Then, connect your computer to the laser cutter using a USB cable. Finally, turn on both your computer and the laser cutter. Now you’re ready to start cutting!

Step Four: Place Your Material on the Bed

Now it’s time to place your material on the laser cutter’s bed. Make sure your material is placed flat on the bed and aligned with the registration marks in your file. Once your material is in place, secure it with tape or clamps, so it doesn’t move during cutting.

Pro Tip: Use masking or painter’s tape instead of regular Scotch tape when securing down your material—regular Scotch tape can leave a sticky residue on some materials that can be difficult to remove.

Masking tape also has a low tack, so it won’t damage delicate surfaces like acrylic or glass when removed.
If you’re using clamps, ensure they are not touching any part of your design, so the y doesn’t get in the way of the laser beam during cutting. Pro Tip: Use C-clamps instead of bar clamps when securing down smaller pieces—bar clamps can be unwieldy and difficult to maneuver when working with smaller pieces.

Step Five: Start Cutting!

Now for the fun part—cutting! Begin by selecting “start job” in your software program. Then, sit back and watch as your design comes to life! Depending on the size and complexity of your design, this process can take anywhere from a few minutes to several hours. Multiple passes may be necessary to achieve a clean cut through the material when cutting thicker materials like wood or leather.


Laser cutting MDF is a great way to create clean cuts and achieve a smooth finish.. these five steps—choosing the right design software, prepping your file, setting up your machine, placing material on the bed, and starting cutting—to get started. If you need help along the way, our team at Dekcel is always here to assist you.

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