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Guided Tour

This is a visual tour of an OmniBox. This page demonstrates:

  1. The core parts of OmniBox and their variations;
  2. Trays and panels; and
  3. How these pieces fit together.

Links are provided to the respective git folder for each component type.

Identifying Components

To help quickly identify a component, we use icons next to component names. The first letter is a filled-in box for what category a part is from:

  • Core
  • Tray
  • Panel
  • Fan

The following letters identify the name of the component, usually one or two letters. Examples:

  • Main Body - Front
  • Lid

Core Components

Core components form the basis of every electronics case. They can be found in the Core folder in the GitHub repository.

There are five (5) Core components: three (3) universal parts and two (2) that have variations.

the five core components

The five Core components.

These are the components, as numbered in the picture above.

  1. Main Body - Front
  2. Main Body - Crossbar
  3. Main Body - Rear
  4. Base - Front
  5. Base - Rear

Universal Parts

These are required and do not have variations.

Base - Front

This is the front of two base pieces that cover the power supply. There is a 30mm x 11mm rocker switch cutout in front, as well as air vents and an optional 40mm fan.

Base - Rear

The back covers the rest of the power supply and mounts a fused IEC power plug.

Main Body - Crossbar

This is a crossbar that joins and covers the joint between the lids and front display.

STLs

Part Printed Qty Link
Base - Front.stl 1 STL
Base - Rear.stl 1 STL
Main Body - Crossbar.stl 1 STL

Core Parts with Variants

Your power supply unit (PSU) will mount underneath the main body. The Core folder has one subfolder for each supported PSU.

Currently the two supported PSUs are:

  • Mean Well LRS-350
  • Mean Well RSP-500 (Preliminary)

Main Body - Front

The front main body comes in two variations to choose from.

The version with a 60mm external fan additional requires the appropriate fan cage. Optionally, a TPU gasket can also be used with the fan cage.

40mm Optional Fan 60mm External Fan
front with 40mm fan mount front with 60mm fan cutout
Variation Printed Qty LRS-350 Link RSP-500 Link
Main Body - Front with 40mm Intake.stl 1 STL STL
Main Body - Front with 60mm Intake.stl 1 STL STL

Main Body - Rear

The rear main body also comes in two variations. For the dual 40mm fan version, you will also need to print 40mm fan cages and (optionally) TPU gaskets.

Dual 40mm Fans No Fan Mounts
rear with 40mm fan cuouts rear body without fan cutouts
Variation Printed Qty LRS-350 Link RSP-500 Link
Main Body - Rear No Fans.stl 1 STL STL
Main Body - Rear with 40mm Exhausts.stl 1 STL STL

Trays

Trays are used for mounting parts internally. They come in three types:

the three types of trays

The three types of Trays.
  1. MCU tray
  2. Lower bay tray
  3. CPU tray

Tray templates are available in both STEP and Fusion 360 format to add support for new products.

MCU tray

MCU trays mount a microcontroller unit--your 3D printer board.

List of supported MCUs

Lower Bay

The lower bay is a configurable area to mount parts like buck converters and MOSFETs.

List of supported lower bay parts

CPU Tray

The CPU tray is an optional mount for a Raspberry Pi. There is a blank cover if you do not use a Raspberry Pi or other SoC CPU.

List of supported CPUs

Panels

callout of panels and fan cage

The four types of panels. #5 is a fan cage.
  1. Front panel
  2. Display panel
  3. Lid
  4. Rear panel (not visible)
  5. Fan cage (see next section)
Panels Qty Folder Link Notes
Rear Panel 1 Link See directions below.

Panels have a range of supported parts and options. There is a blank STEP and Fusion 360 template for each panel category. Additionally, all panel variations have STEP source files. Fusion 360 files are also usually available.

As with trays, links in this section are to folders rather than individual .STL files.

Front Panel

The front panel serves as an air vent and location to put a MicroSD card reader extension. USB extensions are also a common accessory.

Display Panel

This area mounts LCD displays, from the basic 128x64 character display to Raspbery Pi TFTs.

Lid(s)

The lid is both a way into your case and a configurable panel. There are two types of lids: full-length and half-length lids. You can either print one (1) full-length lid or two (2) half-length lids.

  • Files: Panels/Lids
  • (A full list of supported parts is not yet available)

Rear Panel

The rear panel is used for ventilation, passing wiring out of your case, and optionally an additional fan. There are stock configurations available to suit common uses. A template is also available for customization.

Rear panels with panel mounted connectors are an active area of work.

Folder Description Use If...
Generic These have large holes for passing wires through and come in a number of common variations. ...You want a simple, off-the-shelf solution and there is not a custom panel that suits.
Custom Designed for users of common printer configurations. ...Your printer has a configuration available.
Micro Fit 3 Use Molex Micro Fit 3 panel mounted connectors. Pinout diagrams for each panel are included. ...You plan to create a wiring harness for an enclosed printer.
Template A Fusion 360 template with profiles for panel mounted connectors and fans. ...You want to create your own panel.

Fans

render of several fan cages

Render of several old-style fan cages.

Externally mounted fans use fan cages to cover the fan blades. There are a large number of fan sizes supported, each with a matching TPU fan gasket. The gaskets are optional and serve to reduce noise.