The reverse channel letters also named Halo lit letters or back-lit channel letters which is where a single letter glows from the back of the letter and shines on the wall behind it. This provides a good atmosphere, with a soft glow, but not too strong. It is very popular in the 3d sign industry.

Not like the front-lit letters, back-lit channel letters have a metal face and sidewall, such as aluminum or stainless steel, normally not easy to make manually. This article outlines how to make reverse channel letter signage by machine.

Benefits of Making Reverse Channel Letters by Machine

There are several benefits of making reverse channel letters by machine. These include:

  1. Increased accuracy – When you make reverse channel sign letters using a channel letter bender, the results are usually more accurate than those made by hand. This is because machines can create perfectly straight lines and smooth curves, which can be difficult to do by hand.
  2. Increased speed – Machines can also create reverse sign letters faster than someone could by hand. This means that you can produce a larger quantity of letters in a shorter amount of time.
  3. Improved quality – Finally, using a machine to make channel letters results in improved letter quality. This is because machines can create perfectly symmetrical letters that are smooth and even, which is typically much harder to achieve by hand.

reverse channel letters back-lit channel letters by varisigns channel bender

Steps to Make Reverse Channel Letter Signage by Machine

There are several steps involved in making reverse channel letter signage by machine. These include:

1. Know the size, shape, and the design of the letter you want to make

Before you can start making sign letters, you first need to know the size and shape of the letter you want to create. There are many different ways that 3d channel letters can be made, depending on your sign’s desired look and design. You need to decide whether you want a more modern-looking letter with clean lines meant for long-term use in outdoor environments or something less defined but still vibrant that is perfect for temporary signage or displays. This information will help determine the cutting tool’s dimensions that you will use.

2. Choose the right machine for the job

Once you have decided, the next step is to choose the right channel letter bending machine and tools to create your letters. A few different machines can be used for this purpose, including a CNC router or Laser Cutter, even the laser welder. Each of these machines has its advantages and disadvantages. For example, the CNC router is great for cutting large letters quickly and easily. At the same time, the Laser Cutter produces cleaner lines and is better suited for detailed designs. And the laser welder can significantly improve the speed of making joint between the aluminum face and sidewall instead of traditional Tig or Mig welder.

3. Select CNC project file

Once you have chosen your channel letter bending machine, it’s time to decide on the right CNC project file for your sign. CNC project files are vector drawing files that will give specific instructions about cutting out each letter. You need to make sure that the font size of the letters in the file is exactly what you want- otherwise, they may not look exactly like you want them to.

4. Cutting the letters

After choosing your CNC project file and channel letter bender machine, the next step is to cut out each letter. Although this may vary depending on what type of equipment you are using, it’s usually a good idea to start by cutting out larger portions so that they can be sanded down later. For example, if you want to create letters roughly 12″ tall, you might want to start by cutting out sections 18-20″. This will make the lettering look more polished after it is sanded.

Once all of your letters have been cut out and sanded down, the final step is to paint them or coat them with another material like vinyl. You can leave them as is or add some finishing touches to make them look even better. Congratulations – you have now created your very own set of reverse channel letters!

With these simple steps, you can create beautiful halo-lit letters by machine and add a touch of sophistication to your next printing project!

halo-lit channel letters by Varisigns letter bending machine

Tips to Make Stunning Reverse Channel Sign Letter by Machine

Now that we have the basics down let’s look at some specific tips on making stunning reverse channel sign letters.

Use a variety of fonts to create different looks

One of the best things about reverse sign letters is that they can be adapted to fit any design. Whether you want something sleek and modern or more traditional, there are plenty of fonts that will work well with this lettering style. Experiment with different types until you find one which you like best.

Create your custom design to make the lettering even more impressive

Once you’ve gotten used to making reverse channel sign letters with a set font, why not try creating something of your own? To do this, it’s useful to draw out some basic designs on paper before transferring them onto CNC software to cut out. This is a great way to add a personal touch to your sign and make it stand out.

Use contrasting colors for extra impact

One easy way to make your reverse letters look even better is by using contrasting colors. For example, black lettering on a white background can create an eye-catching effect. If you want to get even more creative, try using two different colors of paint- this can turn your lettering into a real work of art!

Be patient and practice

Creating channel reverse letters is fun, but it takes some time and patience to get just right. If you want your lettering to look as good as possible, the best thing that you can do is be patient and keep practicing until you’ve mastered the technique!

Use narrow letters with thin lines

One of the most important things that come into play when making channel letter reverse by machine is the width of each letter. While it may be tempting to create wide, bold letters which fill up your entire sign, this can make it harder for you to cut them out properly in the end. The best way to avoid problems like these is to stick with thinner lines and narrower letters when possible- they will be much easier to work with.

Sand down rough edges

Once you have cut out your letters, it’s important to take the time to sand down any rough edges. Not only will this make them look neater, but it will also help to give them a smoother finish. This is especially important if you plan on painting or coating them with another material like vinyl.

Use a variety of colors and layers for more depth

One great way to make your back-lit channel letters even better is by adding more colors and layers. This will give the lettering an impressive appearance that looks like it was done with paint or vinyl, but without all of the added difficulty! If you want to experiment with this technique, it’s best to start with a few simple letters and then work your way up to more complex designs.

Use clear coat for added protection

If you want to make sure that your halo-lit letters stay looking great for years to come, it’s a good idea to apply a clear coat of sealant or lacquer once they’re finished. This will give them a nice shine and help protect the paint from chipping or fading.

Make sure they’re level

One of the most important things you need to remember when working with reverse channel letters is that they must be level! If your lettering leans, it can look sloppy and unprofessional in addition to being more difficult to cut, so make sure to take the time to double-check this before you start working.

Ensure you have a thick base depth

One of the most important aspects of making reverse channel letters is ensuring that your base depth (the thickness at which the lettering begins) is set up properly. This will not only help to ensure that they are cut out just right, but it will also help to ensure that they look great and last for a long time.

Use a template for even more accuracy

If you want to make sure that your reverse channel letters are as accurate as possible, one good idea is to use a template. This will help ensure that each letter is the same size and shape, making them much easier to work with in the end.

steel channel letters by Varisigns channel letter bending machine


Making reverse channel letters is a fun, creative way to add personality to your signs and projects. By following these simple tips, you can ensure that your lettering looks great and lasts for years to come. However, having the right channel letter bending machine is the key to making this task as simple and easy as possible. If you are looking for a machine that can handle this task with ease, Varisigns has the perfect option for you. Our channel letter bender can make quick, accurate work of even the most challenging projects, so be sure to check it out today!

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