OSHRockets 🚀

An open-source part CAD library for model rocketry. All parts are welcome, just follow the standards. If you have CAD files and are willing to write some documentation, please make a pull request and add your parts to the library.

Contribution Guide:

1. Parts must be flight-proven, and their usage made explicity clear
2. STEP or STL only, no proprietary formats
3. Each part file must have an accompanying .txt with identical filename

• Short description of the part
• Required fabrication techniques, Ex: FDM print, Resin print, Purchase online (provide link)
• Recommended print settings and weight (if applicable)
• Recommended usage, Ex: "Flew on ~500g 1m length rocket with Aerotech F26-6FJ"

OSHRockets Standards

Adhere to these standards or your pull request won't be merged.

File Organization

Here is how to format a part folder:

PartName is the type of part, for example: Nosecone, Transition, FinCan, etc.

Specs are added using tags, D:diameter_L:length_M:mass, order doesn't matter

Info is other info, describing the part in under 30 characters

• DIR: PartName_Specs_Info
  • PartName_component.step (If multiple .step, specify the component tag)
  • PartName_component.stl
  • Description.md
  • Icon.png

For example, a BT-80 diameter, 5cm tall, 60g ogive nosecone that stores clay:

• NoseconeOgive_D:BT-80_L:5cm_M:60g_ClayPayload
  • NoseconeOgive_Top.step
  • NoseconeOgive_Bottom.step
  • NoseconeOgive_Top.stl
  • NoseconeOgive_Bottom.stl
  • Description.md
  • Icon.png

Writing Part Descriptions

To be written

Body Tube Sizes

• Body Tube 80 (BT-80)
  • Inner diameter : 65.0mm
  • Outer diameter : 66.0mm
  • Inner Print Diameter : 64.8mm
• Body Tube 70 (BT-70)
  • Inner diameter : 55.4mm
  • Outer diameter : 56.3mm
  • Inner Print Diameter : 55.2mm or 55.0mm test
• Body Tube 60 (BT-60)
  • Inner diameter : 40.5mm
  • Outer diameter : 41.6mm
  • Inner Print Diameter : ???
• 29mm Engine Tube
  • Inner diameter : 29.0mm
  • Outer diameter : 29.9mm or 30.7mm
  • Inner Print Diameter : ???
  • Outer Print Diameter : ???
• 24mm Engine Tube (BT-50)
  • Inner diameter : 24.1mm
  • Outer diameter : 24.8mm or 30.7mm
  • Inner Print Diameter : ???
  • Outer Print Diameter : ???

Part Strength/Weight

• For a part to be considered high strength/weight walls must be solid and at least 5mm thick. Walls cannot be skeletonized.
• Low strength/weight parts should stay generally stay above 2mm thick and below 5mm thick. Walls can be skeletonized.
• All separator Bulkheads should be at least 4mm thick

Other Dimensions

• Fins designed for an internal fin aligner should have a 40mm long fin tab
• All Fin tab widths should equal (in mm) (body tube outer diameter - engine tube outer diameter)/2+.2
• Internal fin aligner slots should be 40mm tall and 3.2mm wide