# Neo Trinkey Case ## Overview https://youtu.be/dY-oY9D03Vc ![Neo](https://cdn-learn.adafruit.com/guides/images/000/003/336/original/hero-trinkey_case.jpg?1621902736) This protective case for a Neo Trinkey features a built in USB shell to help stabilize the board. The print-in-place button allow you to access the reset button.  Translucent filament helps to soften and diffuse the NeoPixel LEDs . The large ring allows you to use bigger keychains or lanyards! ![3d_printing_hero-loop.gif](https://cdn-learn.adafruit.com/assets/assets/000/102/320/medium640thumb/3d_printing_hero-loop.jpg?1621902920) ## Capacitive Touch    The Neo Trinkey case is also compatible with these optional 3d printed conductive touch pads using [Conductive PLA filament](https://www.proto-pasta.com/collections/conductive/products/conductive-pla). These allow you to route the touch pads to the top of the case, in addition to the back and front.  ![3d_printing_pad-loop-B.gif](https://cdn-learn.adafruit.com/assets/assets/000/102/321/medium640thumb/3d_printing_pad-loop-B.jpg?1621905096) ## Keyboard Inputs   The touch pads can be used as keyboard buttons! You can set the two touchpads to be an HID (Human Interface Device), like a shutter button on mobile devices or a macro pad on a computer!   ![3d_printing_ios-shutter-loop-B.gif](https://cdn-learn.adafruit.com/assets/assets/000/102/322/medium640thumb/3d_printing_ios-shutter-loop-B.jpg?1621905203) ![3d_printing_volume-loop-B.gif](https://cdn-learn.adafruit.com/assets/assets/000/102/323/medium640thumb/3d_printing_volume-loop-B.jpg?1621905314) All of the 3D Printed case parts snap fit together and print with minimal supports. ## Parts ### Adafruit Neo Trinkey - SAMD21 USB Key with 4 NeoPixels [Adafruit Neo Trinkey - SAMD21 USB Key with 4 NeoPixels](https://www.adafruit.com/product/4870) It's half USB Key, half Adafruit Trinket_..._it's **Neo Trinkey** , the circuit board with a Trinket M0 heart and  four RGB NeoPixels for customizable glow. We were inspired by some USB key flashlight boards that would turn any battery pack into an LED torch. So... In Stock [Buy Now](https://www.adafruit.com/product/4870) [Related Guides to the Product](https://learn.adafruit.com/products/4870/guides) ![Close-up of NeoTrinkey PCB inserted into a laptop. The LEDs emit rainbow colors.](https://cdn-shop.adafruit.com/640x480/4870-03.jpg) # Neo Trinkey Case ## 3D Printing ## Parts List   STL files for 3D printing are oriented to print "as-is" on FDM style machines. Original design source may be downloaded using the links below. - trinkey-case.stl - trinkey-cover.stl - trinkey-pad.stl ![3d_printing_parts.jpg](https://cdn-learn.adafruit.com/assets/assets/000/102/324/medium640/3d_printing_parts.jpg?1621905845) [Download CAD Source Files](https://cdn-learn.adafruit.com/assets/assets/000/134/251/original/cad_source.zip?1734717029) [Download STLs](https://www.thingiverse.com/thing:4869169) ## Slicing Parts Supports are required. Slice with setting for PLA material.  The parts were sliced using CURA using the slice settings below. - PLA filament 220c extruder - 0.2 layer height - 10% gyroid infill - 60mm/s print speed - 60c heated bed ## Supports - Support Extrusion Width: .2 - Support Density: 4% - Support Z Height: .21 - Interface: Off - Support Roof: On - Support Pattern: Zig Zag - Support Roof Pattern: Zig Zag ![3d_printing_slice-loop-B.gif](https://cdn-learn.adafruit.com/assets/assets/000/102/325/medium640thumb/3d_printing_slice-loop-B.jpg?1621907807) ![3d_printing_support.jpg](https://cdn-learn.adafruit.com/assets/assets/000/102/326/medium640/3d_printing_support.jpg?1621908140) ## Assemble    Slide the Neo Trinkey into the bottom slot inside the case. Align the touch pads to the edge of the case. Press fit the cover tab into the slot on the PCB and align the cover to the edges on the case.  ![3d_printing_slide-into-loop.gif](https://cdn-learn.adafruit.com/assets/assets/000/102/327/medium640thumb/3d_printing_slide-into-loop.jpg?1621908294) ![3d_printing_cover-attach.jpg](https://cdn-learn.adafruit.com/assets/assets/000/102/328/medium640/3d_printing_cover-attach.jpg?1621908359) ## Cap Touch Pads   Use [conductive PLA filament](https://www.proto-pasta.com/collections/conductive/products/conductive-pla) for the capacitive touch pads. The optional cap touch pad are fitted over the PCB. Arrange the right and left pads to fit on the PCB. ![3d_printing_pads-attach.jpg](https://cdn-learn.adafruit.com/assets/assets/000/102/329/medium640/3d_printing_pads-attach.jpg?1621909067) [Buy Conductive PLA Filament from ProtoPasta](https://www.adafruit.com/product/2703) ![](https://cdn-learn.adafruit.com/assets/assets/000/102/330/medium800thumb/3d_printing_flash-light-loop-b.jpg?1621909385) ## Featured Products ### Adafruit Neo Trinkey - SAMD21 USB Key with 4 NeoPixels [Adafruit Neo Trinkey - SAMD21 USB Key with 4 NeoPixels](https://www.adafruit.com/product/4870) It's half USB Key, half Adafruit Trinket_..._it's **Neo Trinkey** , the circuit board with a Trinket M0 heart and  four RGB NeoPixels for customizable glow. We were inspired by some USB key flashlight boards that would turn any battery pack into an LED torch. So... In Stock [Buy Now](https://www.adafruit.com/product/4870) [Related Guides to the Product](https://learn.adafruit.com/products/4870/guides) ## Related Guides - [Adafruit Neo Trinkey](https://learn.adafruit.com/adafruit-neo-trinkey.md) - [Neo Trinkey Auto Screen Locker](https://learn.adafruit.com/neo-trinkey-auto-screen-locker.md) - [Neo Trinkey Zoom Shortcuts](https://learn.adafruit.com/neo-trinkey-zoom-shortcuts.md) - [Neo Trinkey CircuitPython Rubber Ducky](https://learn.adafruit.com/neo-trinkey-circuitpython-rubber-ducky.md) - [Neopixel Cosmic Turtle Necklace](https://learn.adafruit.com/neopixel-led-magnetic-pendant-necklace.md) - [3D Printed NeoPixel LED Gas Mask](https://learn.adafruit.com/3d-printed-el-wire-laser-neopixel-led-gas-mask.md) - [Trellis 3D Printed Enclosure](https://learn.adafruit.com/trellis-3d-printed-enclosure.md) - [Zelda Master Sword](https://learn.adafruit.com/zelda-master-sword.md) - [Automatic Naughty Cat Detector using Lobe](https://learn.adafruit.com/naughty-cat-detector-using-microsoft-lobe.md) - [GoPro Hero 5 NinjaFlex Case with Tripod](https://learn.adafruit.com/gopro-hero-5-ninjaflex-case-with-tripod.md) - [Gemma 3D Printed Tree Topper](https://learn.adafruit.com/gemma-3d-printed-tree-topper.md) - [Flippy Floppy Drive Modification](https://learn.adafruit.com/flippy-floppy-drive-modification.md) - [Boomy Pi Airplay Boombox](https://learn.adafruit.com/boomy-pi-airplay.md) - [Using 1.75mm Filament on Ultimaker 2](https://learn.adafruit.com/using-1-dot-75mm-filament-on-ultimaker-2.md) - [Kitty Toe Bean Keypad with Color TFT](https://learn.adafruit.com/kitty-toe-bean-paw-keypad-color-tct.md)