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Thingiverse
21 model
Free
FreeGPIO cover
Printables
FreeGPIO Male and Female for projects
Thingiverse
FreeOctoprint and GPIO Control Tutorial!
Thingiverse
Free3.5" GPIO Touchscreen RPI 3b+ Cover
Printables
FreeRaspberry Pi GPIO Cover 40 Pin
Printables
FreeRaspberry Pi 4 B GPIO / Octoprint Ready 2020 Rail Case! Includes Slimmer Top!
Thingiverse
FreeRaspberry Pi 4 case - GPIO tab - fan versions - Ender mount
Thingiverse
FreeTinkercase W/ GPIO Slot
Thingiverse
FreeESP32 - S3 GPIO Extension Board
Thingiverse
FreeKingroon KP3s - LCD TFT RPi GPIO Raspberry pi Zero 2w
Printables
FreeRaspberry Pi 3/4 Einsy Rambo RPI / GPIO Mod
Thingiverse
FreeAnycubic Kossel tft 3.5" Raspberry Pi GPIO
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FreeOctoPi Case for Prusa i3 MK2S and MK3 with exposed GPIO ports
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FreeEnder 3 Raspberry Pi 3 B+ case w/camera and GPIO exposed
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FreeSidewinder X1 Mounted Pi Sleeve w/ Camera and GPIO Slots
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FreeRaspberry PI 3B+ Sleeve Case Aluminium Extrusion mount , GPIO, Camera
Thingiverse
FreeEnder 3 Raspberry Pi 2/3 mount 2 rails - LM2596 -40mm Fan - without cut for Fan & GPIO
Thingiverse
FreePrusa MK3 M2.5 raspberry Pi case with berry logos, exposed GPIO ports+Camera Slot
Thingiverse
/https://fbi.cults3d.com/uploaders/18697802/illustration-file/c42a6a8f-9793-4311-9459-5e6bbccc674f/render_assembled_iso.png)
FreeRaspberry Pi 3 Model B Case (Self-Tap or Heat-Set Insert Base, Snap-Fit Plain / GPIO / 30mm Fan Lids)
Cults3D
/https://fbi.cults3d.com/uploaders/18697802/illustration-file/fd050904-214f-49ff-89ce-3f37273ac22f/render_B_assembled_iso_with_lens.png)
FreeRaspberry Pi Zero 2 W Case (Snap-Fit Lid, Optional GPIO Slot) + AI Camera Lid Version
Cults3D