CNC Stingray Keychain (Custom Keychain) Tutorial

by priaps in Workshop > CNC

1071 Views, 0 Favorites, 0 Comments

CNC Stingray Keychain (Custom Keychain) Tutorial

Scratchbuilt Stingray Keychain for ocean lovers

I wanted to have a custom keychain made and I wanted to try my new mini CNC machine for it. I used basswood to carve basic shape of sting ray and UV resin for embellishments. Please see this video for build process and review of final product.

CNC Main Body

IMAG2977.jpg

Using CNC machine I carved basic shape of stingray in basswood. I used 300 grit sandpaper to clean the design. Tail on main body (with wings) broke while CNC machine was cutting this shape and main shape rose up slightly. I replaced it with polymer clay. I have detailed it in later step.

Filling UV Resin

IMAG2995.jpg
IMAG2978.jpg
IMAG2979.jpg

I placed main body on a piece of sticky side of tape. I used some iridescent gift wrapping cellophane to get faux opal effect. I mixed some resin color in UV resin and added it to sockets on both sides. I crumpled iridescent cellophane and embedded on both sides. I used black light flashlight to cure UV resin.

Gluing Body Together and Sanding

IMAG2981.jpg
IMAG2984.jpg
IMAG2982.jpg
IMAG2983.jpg
IMAG2985.jpg
IMAG2986.jpg

Next I used some wood glue and glued both parts of body together. I used 300 grit sanding paper to smooth and shape the body. While sanding, remaining part of tail broke off too! :-)

Polymer Clay Tail

IMAG2989.jpg
IMAG2990.jpg
IMAG2991.jpg
IMAG2992.jpg
IMAG2987.jpg

After wooden tail piece broke off, I drilled a hole at base of body and inserted piece of stiff wire. Using some polymer clay, I modeled a tail and smoothed it over wooden part of stingray body. I used heat gun to bake polymer clay.

Color and Finishing

IMAG2994.jpg
IMAG2993.jpg
Thumbnail.jpg

After further sanding, I painted whole body with acrylic pearl color. After three coats of this color dried, I added two layers of blue-green iridescent paint onto it. Once these layers completely dried, i covered whole body with thin layer of UV resin and cured it to glossy finish.

Adding a Loop for Keychain

IMAG2997.jpg
IMAG2998.jpg
IMAG2999.jpg

Last step was to add a screw on bail and a loop to attach to the body. Now this keychain is ready to be admired and used.

Thanks for reading. I have added my CNC GCode file as well if you want to use it to cut stingray body.