Printing Guide
This page has common settings for printing OmniBox and a printed component checklist. See the guided tour for help choosing the correct parts.
Recommended Materials
Modified PLA
OmniBox prints best with modified PLA, usually called PLA+ or PLA Pro.
Unmodified PLA
Sometimes called Basic PLA, unmodified PLA prints easily but is a rigid and weak material. Unmodified PLA prints at lower temperatures and is usually cheaper than modified PLA. Use modified PLA instead.
PETG
Printing in PETG typically takes longer than PLA but otherwise produces good results.
Note
Fan gaskets are an optional noise reducer and require TPU.
3D Print Settings
These settings are consistent for all parts except the TPU fan gaskets.
| Setting | Value | Notes |
|---|---|---|
| Layer Height | 0.16-0.25mm | Coarser settings have not been tested. |
| Adaptive Layer Height | Optional | Can improve appearance and reduce print time. |
| Perimeters (Walls) | See below | Correct value depends on material. |
| Infill | 20-25% | Cubic is a good tradeoff for time and durability. |
| Nozzle Diameter | 0.4mm, 0.6mm | If you print a case with a different nozzle size, please share your results! |
| Support Overhang Angle | >= 60 degrees | This reduces print time & support material. |
Material-Specific Settings
PLA
Print with 1.2mm or thicker walls (3 perimeters with a 0.4mm nozzle). 1.5mm+ results in solid Main Body side walls.
PETG
Use 1.6mm walls/perimeters (1.8mm for 0.6mm nozzles).
Support Settings
- Supports must be on for the main body.
- The base may be printed without supports.
- Support blockers are recommended for all zip tie anchors and fastener holes.
General Tips
- For large parts (e.g., the rear main body) use a brim, adhesive, or both.
- Cantilever bed printers (where the bed is supported by a single Z stepper; e.g., Ender 5 Pro) should move heavier prints to the supported side of the bed.
- If printing in a drafty room, consider a partial enclosure to help layer adhesion.
- Long lids will fit on 220x220mm beds if printed without a skirt or brim.
Printed Component Checklist
This is a checklist of types parts to print. See the Guided Tour for help selecting the right STL files from the git repository.
Core: Base
Print a Front Base and a Rear Base. A Unified Base may be printed instead if you have a print bed with least 300mm on one axis.
See the Base section of the Tour for more information.
Unified and Unified Extended
Core: Main Body
Print one (1) version of each of the Crossbar, Front Main Body, and Rear Main Body. See the Main Body section of the Tour for help choosing versions to print.
Trays
| Component | Quantity | Required | Notes |
|---|---|---|---|
| PSU Tray | 1 | Yes | |
| MCU Tray | 1 | Yes | |
| CPU Tray | 0-1 | No | Typically only one (1). Takes the place of a side panel. |
| Lower Bay Trays | 0-6 | No | Type and quantity are specific to configuration. |
Panels
| Component | Quantity | Required | Notes |
|---|---|---|---|
| Display Mount | 1 | Yes | |
| Lid | 1-2 | Yes | One (1) long lid or two (2) short lids. |
| Rear Panel | 1 | Yes | |
| Bottom Panel | 1 | Yes | |
| Side Panel | 3-4 | Yes | Four (4) side panels, minus the number of CPU trays installed. |
Other Components
| Component | Quantity | Required | Notes |
|---|---|---|---|
| Fan Cages | Varies | Yes | Quantity and type depend on configuration. |
| Fan Gaskets | Varies | No | Optional add-on to fan cages. |
| Power Switch Cover | 1 | No | Recommended cover for rocker switches. |