Step‑by‑Step Guide to Building a Carbon Fiber Smartphone Stand

A sturdy phone stand is a tiny thing that can make a big difference in daily life. It keeps your screen at the right height, frees up your hands, and looks good on the desk. Using carbon fiber for the job adds a dash of high‑tech flair while keeping the stand light enough to carry in a bag. Below is the exact process I use in my workshop at Carbon Fiber Crafts, so you can make one yourself without a PhD in material science.

What You’ll Need

Carbon fiber sheet

A 2 mm thick plain weave sheet works best. It’s thin enough to cut easily but thick enough to hold a phone without bending. I usually buy a 300 mm × 300 mm piece from a local supplier; any size larger than the finished stand will do.

Epoxy resin and hardener

A two‑part epoxy gives the best bond. Follow the mix ratio on the bottle – most are 1 : 1 by weight. A small disposable cup and a wooden stir stick are all you need.

Release film or wax paper

This protects the work surface and makes it easy to peel the cured part away.

Cutting tools

A fine‑toothed hacksaw or a rotary cutter with a carbon‑fiber blade will do. I prefer a rotary cutter because it gives a cleaner edge.

Sandpaper

Start with 120 grit and finish with 400 grit. Carbon fiber feels like sandpaper itself, so a little extra smoothing helps the finish.

Clamps or a simple weight

You’ll need something to hold the layers together while the epoxy cures. A couple of small spring clamps work fine.

Optional: paint or clear coat

If you want color, use a spray paint that sticks to epoxy. A clear coat adds extra shine and protects the surface.

Preparing the Carbon Fiber Sheet

First, lay the release film on a flat table. Cut the sheet to a rough rectangle about 150 mm long and 80 mm wide – this gives enough material for the base, back support, and a little extra for trimming later.

Carbon fiber can be a bit itchy on the skin, so wear gloves and a mask. The fibers are tiny, and the resin can irritate if it gets on your skin.

Cutting and Shaping

Mark the outline

Using a ruler and a fine‑point marker, draw the shape of the stand. I like a simple “L” shape: a flat base of 100 mm × 30 mm and a back support that rises 80 mm high and 30 mm wide. The back support should sit in the middle of the base for balance.

Cut the shape

Run the rotary cutter along the lines, applying steady pressure. If you hear a squeal, you’re cutting too fast – slow down to avoid fraying the fibers. After the cut, you’ll have a rough L‑shaped piece.

Trim the edges

Flip the piece over and sand the edges with 120 grit sandpaper. This removes any stray fibers and makes the edges smooth enough to hold a phone without scratching it.

Assembling the Stand

Build a reinforcing rib

To give the stand extra strength, cut a thin strip (about 10 mm wide and 80 mm long) from the leftover carbon fiber sheet. This will become a rib that runs along the inside corner of the L shape.

Apply epoxy

Mix the epoxy according to the instructions – usually a 1 : 1 ratio by weight. Stir slowly to avoid bubbles. Spread a thin layer of epoxy on the inside corner of the L shape, then place the rib on top. Use a small brush to press the epoxy into the fibers.

Clamp and cure

Place a weight or a couple of clamps over the rib to keep it flat. Let the epoxy cure for the time stated on the bottle – typically 30 minutes to an hour at room temperature. While you wait, you can tidy up your workspace or test the stand with a phone (don’t worry, the epoxy is still soft).

Finishing Touches

Sand the surface

Once the epoxy is fully cured, sand the whole stand with 400 grit sandpaper. This removes any excess resin and gives the surface a uniform feel. Wipe away dust with a lint‑free cloth.

Paint or seal

If you want a splash of color, spray a light coat of paint now. Carbon fiber takes paint well, but a clear coat on top helps the color last longer. Let the paint dry completely before moving on.

Add a rubber pad (optional)

A small piece of silicone rubber on the base prevents the stand from sliding on a desk. Cut a 20 mm × 20 mm square, stick it to the bottom with a dab of epoxy, and you’re done.

Testing and Tweaking

Place your phone on the stand. It should sit upright without wobbling, and the base should feel stable. If the phone leans, check that the back support is centered on the base. A tiny adjustment – a little extra sandpaper on one side – can bring it back to perfect balance.

I once built a stand for a friend’s old phone that was a bit heavier than expected. The stand tipped forward a little, so I added a second rib on the opposite side of the back support. The extra layer added just enough stiffness to hold the weight, and the stand looked even more rugged.

Why Carbon Fiber?

You might wonder why not use wood or plastic. Carbon fiber gives a strength‑to‑weight ratio that’s hard to beat. A 2 mm sheet weighs less than a typical wooden block of the same size, yet it won’t warp over time. It also has a sleek, modern look that fits well on a tech‑heavy desk.

At Carbon Fiber Crafts we love showing how a high‑tech material can be used in everyday objects. This phone stand is a perfect example – it’s useful, looks cool, and proves that a little engineering can turn a simple idea into something special.

Enjoy building, and feel free to experiment with different shapes or sizes. The same steps work for a tablet holder, a small laptop riser, or even a custom key rack. The only limit is how far you’re willing to push the material.