Eggtimer Quantum Avionics Bays (1.59", 2.26", 4") – Modular 2S LiPo Sled System

🚀 Eggtimer Quantum Avionics Bays (1.59", 2.26", 4") – Modular 2S LiPo Sled System

A clean, modular avionics bay system designed specifically for Eggtimer Quantum altimeters. These sleds are built for reliability, ease of assembly, and clean wiring in real-world flight setups.

All variants are designed around a compact 2S 400mAh LiPo with JST-PH connector, keeping your wiring simple and your CG predictable.

🔧 Available Sizes & Layouts

🔹 4" Av-Bay

• Dual sled configuration

• One side: Quantum A18 layout

• Other side: Quantum B1 / B2 layout

• Separate battery compartment with removable lid

🔹 2.26" Av-Bay

• Quantum A18 layout

• Integrated battery compartment with removable lid

🔹 1.59" Av-Bay

• Compact Quantum A18 layout

• Minimal footprint for smaller airframes

• Battery mounted inline (no lid)

🔋 Battery Compatibility

Designed around this battery (perfect fit):

• 2S 400mAh LiPo (JST-PH)
  👉 https://www.amazon.com/dp/B07PF8ZJKX

🧠 Designed for Eggtimer Quantum

These sleds are purpose-built for the Quantum ecosystem:

• Clean mounting for Quantum A18

• Support for B1/B2 layouts (4" version)

• Easy access to wiring and terminals

• Clean routing for igniter leads and power

👉 Learn more about the Quantum system:
https://eggtimerrocketry.com/

🧩 Design Features

• 🧱 Print-in-place friendly (no supports needed)

• Heat insert Standoffs

• 🔩 Uses standard threaded rods + hardware

• 🔋 Dedicated battery compartment (2.26" & 4")

• 🪛 Easy assembly and disassembly in the field

• 📏 Compact, rigid, and flight-proven layout

• 🧼 Clean cable management and access points

🖨 Print Settings

• Material: PLA, PETG, or ABS

• Layer height: 0.2mm recommended

• Infill: 20–40%

• Supports: ❌ None needed

• Orientation: Flat on bed

🛠 Hardware Notes

• Standard threaded rod (size depends on your airframe)

• Heat-set inserts (optional but recommended)

• Typical small hardware (M3 / #4 range depending on your setup)

💡 Why This Design?

I built these to solve a few common problems:

• Messy wiring inside tight avionics bays

• Poor battery mounting options

• Lack of modularity between rocket sizes

These sleds keep everything secure, accessible, and clean, whether you're flying a small rocket or a larger dual-deploy setup.