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Discussion History

Cutdown & Ballast

Assembly

Timed mechanism that releases ballast or severs the line to end the flight. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Cutdown & Ballast parts and their functions

4 top-level parts · 36 parts in total · full bill of materials below
Cutdown & Ballast parts diagram: 1 cutdown timer board, 2 nichrome line cutter, 3 ballast bag, 4 release clip. 36 parts in 4 top-level items.
Cutdown & Ballast parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Cutdown Timer Board 4 parts 1× Timer and trigger electronics
2 Nichrome Line Cutter 1× Resistive line cutter
3 Ballast Bag 1× Sand or water ballast
4 Release Clip 1×

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

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Bill of materials for Cutdown & Ballast

4 top-level lines · 8 rows shown · 36 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Cutdown Timer Board 4 parts weather-balloon-cutdown-board 1× 1 33 assembly
1.1 Bare PCB pcb-bare 1× 1 · part
1.2 Microcontroller mcu 1× 1 · part
1.3 Relay relay 1× 1 · part
1.4 SMD Passive (R/C/L) smd-passives 30× 30 · part
2 Nichrome Line Cutter weather-balloon-nichrome-cutter 1× 1 · part
3 Ballast Bag weather-balloon-ballast-bag 1× 1 · part
4 Release Clip weather-balloon-release-clip 1× 1 · part

Where the cutdown & ballast is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Weather Balloon

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks