# NeoTrellis M4 Bumper ## 3D Printing https://youtu.be/uG9KAPiRt20 ## 3D Printed Bumper This is a simple 3d printed bumper for the Adafruit NeoTrellis M4 designed for flexible filaments. This provides protection and comfort to the acrylic case. ![3d_printing_bumper-outside.jpg](https://cdn-learn.adafruit.com/assets/assets/000/066/453/medium640/3d_printing_bumper-outside.jpg?1543256698) ## Flexible Filaments The bumper features a cut out on the back side for cables. The design is optimized for 3D printing using flexible filaments, such as [**Cheetah Ninjaflex**](https://www.adafruit.com/category/783) and does not require any support material.  ![3d_printing_colors-top.jpg](https://cdn-learn.adafruit.com/assets/assets/000/066/500/medium640/3d_printing_colors-top.jpg?1543359573) ## How to 3D Print Flexible Filament  Our learn guide will walk you through some common practices for 3D printing with flexible filaments successfully.  [3D Printing Ninjaflex Guide](https://learn.adafruit.com/3d-printing-with-ninjaflex) ## Slice Settings Use these settings as reference. Values listed were used in [Ultimaker's CURA 3.X](https://ultimaker.com/en/products/ultimaker-cura-software) slicing software. This was 3d printed using an Ultimaker S5 and 3. - Material Profile: TPU 95A - .2 layer height / .35 Line Width - 2 wall line count / 10% infill - 220C/60C printer temp - 8mm retraction distance /35mm/s retraction speed - 25mm/s print speed (150mm travel) ![3d_printing_bumper-slicer.jpg](https://cdn-learn.adafruit.com/assets/assets/000/066/454/medium640/3d_printing_bumper-slicer.jpg?1543257134) [Download CAD files](https://github.com/adafruit/Adafruit_Learning_System_Guides/tree/main/NeoTrellis/NeoTrellis_M4_Bumper) ## Parts, Tools, Supplies All we need for this project is the Adafruit NeoTrellis M4 Kit, flexible filament and a 3D printer. - [Adafruit NeoTrellis M4 Kit](https://www.adafruit.com/product/4020) - [USB-C to MicroUSB cable](https://www.adafruit.com/product/3879) - [Flexible Filaments](https://www.adafruit.com/category/783) - [Ultimaker 3 – 3D Printer](https://www.adafruit.com/product/3300) - [Flashforge MonoPrice Inventor II](https://www.adafruit.com/product/3897) ### Adafruit NeoTrellis M4 with Enclosure and Buttons Kit Pack [Adafruit NeoTrellis M4 with Enclosure and Buttons Kit Pack](https://www.adafruit.com/product/4020) So you've got a cool/witty name for your band, a Soundcloud account, [a 3D-printed Daft Punk helmet](https://learn.adafruit.com/3d-printed-daft-punk-helmet-with-bluetooth)... so what could be missing from your road to stardom? The **NeoTrellis M4 Kit...** Out of Stock [Buy Now](https://www.adafruit.com/product/4020) [Related Guides to the Product](https://learn.adafruit.com/products/4020/guides) ![Demo Video of Hands pressing buttons on lit up NeoTrellis M4.](https://cdn-shop.adafruit.com/product-videos/640x480/4020-00.jpg) ![](https://cdn-learn.adafruit.com/assets/assets/000/066/498/medium800/3d_printing_colors-angle.jpg?1543359344) ## Colors! Ninjaflex and similar TPU filaments come in a variety of different colors. ![](https://cdn-learn.adafruit.com/assets/assets/000/066/499/medium800/3d_printing_colors-stack.jpg?1543359393) ## Edges & Triangles Two versions, a simple bumper with clean edges and one with triangles (for grip?). # NeoTrellis M4 Bumper ## 3D Modeling https://youtu.be/e6y2Ii8gU-I ## Layer by Layer – Fusion 360 Tutorial We put together a step-by-step walkthrough of designing the bumper in Autodesk Fusion 360. In the tutorial, we import a DXF from the vector file of the acrylic case. Learn how to use sketch driven constants and modelings tools like fillets, chamfers and extrusions. For more tutorial, be sure to check out [the playlist](https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb) on YouTube. [Layer by Layer YouTube Playlist](https://www.youtube.com/playlist?list=PLjF7R1fz_OOVsMp6nKnpjsXSQ45nxfORb) ## Custom CAD Want to make a your own design? Use the PCB and acrylic case files to create yours! [Adafruit NeoTrellis PCB and Enclosure Files](https://github.com/adafruit/Adafruit-NeoTrellis-M4-PCB-and-Enclosure) ## Featured Products ### Adafruit NeoTrellis M4 with Enclosure and Buttons Kit Pack [Adafruit NeoTrellis M4 with Enclosure and Buttons Kit Pack](https://www.adafruit.com/product/4020) So you've got a cool/witty name for your band, a Soundcloud account, [a 3D-printed Daft Punk helmet](https://learn.adafruit.com/3d-printed-daft-punk-helmet-with-bluetooth)... so what could be missing from your road to stardom? The **NeoTrellis M4 Kit...** Out of Stock [Buy Now](https://www.adafruit.com/product/4020) [Related Guides to the Product](https://learn.adafruit.com/products/4020/guides) ### Ultimaker 3 - 3D Printer [Ultimaker 3 - 3D Printer](https://www.adafruit.com/product/3300) The **Ultimaker 3**  is one of our favorite 3D printers on the market. It's a well-built open-source compact machine with an excellent UX. Every inch of the Ultimaker 3 is designed to create the most effortless and reliable 3D printing experience ever!  No Longer Stocked [Buy Now](https://www.adafruit.com/product/3300) [Related Guides to the Product](https://learn.adafruit.com/products/3300/guides) ### Monoprice Inventor II 3D Printer with Touchscreen and WiFi [Monoprice Inventor II 3D Printer with Touchscreen and WiFi](https://www.adafruit.com/product/3897) The **Monoprice Inventor II 3D Printer Touchscreen with WiFi** is a perfect entry-level 3D printer with small footprint and reliable performance. It comes equipped with WiFi so you don't need a cable tether and a lovely 3.5" color touchscreen for settings & feedback.... No Longer Stocked [Buy Now](https://www.adafruit.com/product/3897) [Related Guides to the Product](https://learn.adafruit.com/products/3897/guides) ### USB C to Micro B Cable - 1 ft 0.3 meter [USB C to Micro B Cable - 1 ft 0.3 meter](https://www.adafruit.com/product/3879) As technology changes and adapts, so does Adafruit! Rather than the regular USB A, this cable has  **USB C to Micro B**  plugs! USB C is the latest industry-standard connector for transmitting data _and_ power. Like Lightning and MagSafe cables, USB C has no... In Stock [Buy Now](https://www.adafruit.com/product/3879) [Related Guides to the Product](https://learn.adafruit.com/products/3879/guides) ## Related Guides - [Trellis M4 Audio Filter Visualizer](https://learn.adafruit.com/trellis-m4-audio-visualizer-and-filter.md) - [Neotrellis M4 Live Launcher](https://learn.adafruit.com/neotrellis-live-launcher.md) - [Adafruit NeoTrellis M4 Express](https://learn.adafruit.com/adafruit-neotrellis-m4.md) - [Classic MIDI Synth Control with Trellis M4](https://learn.adafruit.com/classic-midi-synth-control-with-trellis-m4.md) - [iPad Pro Bumper](https://learn.adafruit.com/ipad-pro-bumper.md) - [NeoTrellis M4 Noisy Grains of Sand](https://learn.adafruit.com/neotrellism4sand.md) - [NeoTrellis M4 Memory Game](https://learn.adafruit.com/neotrellis-m4-memory-game.md) - [FlappyBird Game for NeoTrellis M4 in CircuitPython](https://learn.adafruit.com/circuitpython-neotrellism4-flappybird.md) - [Star Trek Soundboard with NeoTrellis](https://learn.adafruit.com/star-trek-sound-board-with-neotrellism4.md) - [NeoTrellis Light Painting](https://learn.adafruit.com/neotrellis-light-painting.md) - [Trellis M4 Synth Design Tool](https://learn.adafruit.com/synthesizer-design-tool.md) - [Bringing Back THE VOICE of Speak & Spell](https://learn.adafruit.com/bringing-back-the-voice-of-speak-spell.md) - [NeoTrellis Tabletop RPG Soundboard](https://learn.adafruit.com/neotrellis-dungeon-crawl-soundboard.md) - [NeoTrellis M4 Arpeggiator Synth](https://learn.adafruit.com/neotrellis-arpeggiator-synth.md) - [Launch Deck Trellis M4](https://learn.adafruit.com/launch-deck-trellis-m4.md)