Electrical and medical recipes

Traps, triggers, radios and generators on one side; bandages, splints and disinfecting on the other. This page lists all 37 of them with what they use, what they need and what they make. Read from the Build 42 game files, November 2026.

01Part

How to read this page

Each row is one recipe. Ingredients are used up. Tools stay in your inventory, though some wear a little. Where a cell says "or", any one of the options works. Requirements lists the skill level you need, the XP the craft gives, and how the recipe is learned if you do not know it from the start. Under each name is where you craft it: in hand, on any surface, at a named workstation, or built in the world from the building menu.

Back to the recipe database. For how the crafting system works, see crafting.

02Part

Electrical (29)

Recipe	Ingredients (used up)	Tools (kept)	Requirements	Makes
Add Long-Range Motion Sensor to Bomb On any surface	Aerosol Bomb or Fire Bomb or Noise Maker or 2 more; Motion Sensor; 4 × Scrap Electronics; Duct Tape	None	Electrical 6. Gives 14 Electrical XP. Read: Home Security Monthly or reach Electrical 10	Depends on what you put in
Add Medium-Range Motion Sensor to Bomb On any surface	Aerosol Bomb or Fire Bomb or Noise Maker or 2 more; Motion Sensor; 3 × Scrap Electronics; Duct Tape	None	Electrical 4. Gives 10 Electrical XP. Read: Home Security Monthly or reach Electrical 9	Depends on what you put in
Add Remote Trigger to Bomb On any surface	Aerosol Bomb or Fire Bomb or Noise Maker or 2 more; Crafted Trigger; 2 × Scrap Electronics; Duct Tape	None	Electrical 2. Gives 6 Electrical XP. Read: Zapper! or reach Electrical 8	Depends on what you put in
Add Short-Range Motion Sensor to Bomb On any surface	Aerosol Bomb or Fire Bomb or Noise Maker or 2 more; Motion Sensor; 2 × Scrap Electronics; Duct Tape	None	Electrical 2. Gives 6 Electrical XP. Read: Home Security Monthly or reach Electrical 8	Depends on what you put in
Add Timer to Bomb On any surface	Aerosol Bomb or Fire Bomb or Noise Maker or 2 more; Timer - Crafted; 2 × Scrap Electronics; Duct Tape	None	No skill needed. Gives 2 Electrical XP. Read: Like Clockwork or reach Electrical 8	Depends on what you put in
Dismantle Electronic Device In hand	Antique Television or Premium Technologies Television or ValuTech Television or 13 more	any screwdriver	No skill needed. Gives 10 Electrical XP	Scrap Electronics
Dismantle Electronic Item In hand	CD Player or Home Alarm or TV Remote or 1 more	any screwdriver	No skill needed. Gives 2 Electrical XP	Scrap Electronics, Depends on what you put in
Dismantle Improvised Lighter In hand	Lighter - Improvised Battery	None	No skill needed	Battery, Electrical Wire
Dismantle Power Bar In hand	Power Bar	any screwdriver or any sharp knife	No skill needed. Gives 1 Electrical XP	Electrical Wire
Dismantle Simple Electronic Item In hand	any camera or any digital or any miscelectronic or 1 more	any screwdriver	No skill needed. Gives 2 Electrical XP	Scrap Electronics
Insert Battery In hand	Battery	any flashlight or any battery-powered item	No skill needed	Changes the item in place
Make Aerosol Bomb On any surface	any aerosol; Box of Sparklers; any aluminum; Duct Tape	a mortar and pestle	No skill needed. Read: The Cheapskate's John Spiral - Homemade Explosives	Aerosol Bomb
Make Fire Bomb In hand	Rag or Rag (Dirty); Water Bottle or Sports Bottle or Bottle of Hair Dye or 11 more; 1 L of petrol	None	No skill needed. Read: The Cheapskate's John Spiral - Homemade Explosives	Fire Bomb
Make Improvised Flashlight On any surface	Scrap Electronics; Light Bulb; Electrical Wire; any tin can or any small sheet metal; Screws	any screwdriver; any pliers; any small saw or any light metal snips	Electrical 1. Gives 10 Electrical XP. Read: Sparky's Lighting Guide or reach Electrical 3	Flashlight - Improvised
Make Improvised Lantern On any surface	Scrap Electronics; Light Bulb; Electrical Wire; any tin can or any small sheet metal; Screws; Wire	any screwdriver; any pliers; any small saw or any light metal snips	Electrical 1. Gives 10 Electrical XP. Read: Sparky's Lighting Guide or reach Electrical 3	Improvised Electric Lantern
Make Improvised Lighter On any surface	Electrical Wire; Battery; Adhesive Tape or Duct Tape	None	No skill needed. Gives 5 Electrical XP. Read: The Cheapskate's John Spiral - Prison Defense or reach Electrical 5	Lighter - Improvised Battery
Make Makeshift Ham Radio On any surface	4 × Scrap Electronics; Amplifier; Light Bulb; Light Bulb - Green; Radio Receiver; Radio Transmitter; 3 × Electrical Wire; 4 × any aluminum	any screwdriver	Electrical 3. Gives 30 Electrical XP. Read: Guerilla Radio - May 1993 or reach Electrical 8	Makeshift Ham Radio
Make Makeshift Radio On any surface	2 × Scrap Electronics; Amplifier; Light Bulb; Radio Receiver; Electrical Wire; 2 × any aluminum	any screwdriver	Electrical 1. Gives 10 Electrical XP. Read: Guerilla Radio - June 1993 or reach Electrical 6	Makeshift Radio
Make Makeshift Walkie Talkie On any surface	3 × Scrap Electronics; Amplifier; Light Bulb; Light Bulb - Green; Radio Receiver; Radio Transmitter; 2 × Electrical Wire; 3 × any aluminum	any screwdriver	Electrical 2. Gives 20 Electrical XP. Read: Sparky's Radio Guide or reach Electrical 7	Makeshift Walkie Talkie
Make Molotov Cocktail In hand	any glass bottle; 1 L of rubbingalcohol or petrol or tequila or vodka or whiskey; Rag or Rag (Dirty) or Denim Strips or 1 more	None	No skill needed	Molotov Cocktail
Make Noise Maker On any surface	7 × Scrap Electronics; Amplifier	any screwdriver; any pliers	Electrical 3. Gives 8 Electrical XP. Read: Real Spy Secrets - June 1993 or reach Electrical 7	Noise Maker
Make Pipe Bomb On any surface	3 × Scrap Electronics; Iron Pipe or Broken Iron Pipe; 20 × Gunpowder; Twine	any metal saw or any small saw	No skill needed. Gives 2 Electrical XP. Read: The Cheapskate's John Spiral - Homemade Explosives	Pipe Bomb
Make Remote Controller (Long-Range) On any surface	TV Remote or Cordless Phone or Pager; 4 × Scrap Electronics; 2 × Glue	any screwdriver; any pliers	Electrical 6. Gives 14 Electrical XP. Read: Zapper! or reach Electrical 10	Remote Controller (Long-Range)
Make Remote Controller (Medium-Range) On any surface	TV Remote or Cordless Phone or Pager; 3 × Scrap Electronics; 2 × Glue	any screwdriver; any pliers	Electrical 4. Gives 10 Electrical XP. Read: Zapper! or reach Electrical 9	Remote Controller (Medium-Range)
Make Remote Controller (Short-Range) On any surface	TV Remote or Cordless Phone or Pager; 2 × Scrap Electronics; 2 × Glue	any screwdriver; any pliers	Electrical 2. Gives 6 Electrical XP. Read: Zapper! or reach Electrical 8	Remote Controller (Short-Range)
Make Remote Trigger On any surface	Receiver or Radio Receiver or Cordless Phone; 2 × Scrap Electronics; 2 × Glue	any screwdriver; any pliers	Electrical 2. Gives 6 Electrical XP. Read: Zapper! or reach Electrical 8	Crafted Trigger
Make Smoke Bomb On any surface	Cold Pack; Rag or Rag (Dirty); 2 × any newspaper	None	No skill needed. Read: The Cheapskate's John Spiral - Chemical Warfare	Smoke Bomb
Make Timer On any surface	Timer or Alarm Clock; Scrap Electronics; Glue	any screwdriver; any pliers	Electrical 1. Gives 4 Electrical XP. Read: Like Clockwork or reach Electrical 8	Timer - Crafted
Remove Battery In hand	Nothing is used up	any flashlight or any battery-powered item	No skill needed	Battery

03Part

Medical (8)

Recipe	Ingredients (used up)	Tools (kept)	Requirements	Makes
Clean Bandage In hand	Bandage (Dirty) or Denim Strips (Dirty) or Leather Strips (Dirty) or 1 more; 0.5 L of water	None	No skill needed	Depends on what you put in
Disinfect Bandage In hand	Rag or Bandage; 0.5 L of water		No skill needed	Depends on what you put in
Disinfect Rag In hand	Rag or Bandage; 0.1 L of rubbingalcohol or vodka or whiskey	None	No skill needed	Depends on what you put in
Douse Cotton in Alcohol In hand	Cotton Balls; 0.1 L of rubbingalcohol or vodka or whiskey	None	No skill needed	Cotton Balls Doused in Alcohol
Grind Up Comfrey On any surface	5 × any comfrey	a mortar and pestle	No skill needed. Read: Wilderness Survival or reach First Aid 5 and Foraging 5	Comfrey Poultice
Grind Up Plantain On any surface	5 × any plantain	a mortar and pestle	No skill needed. Read: Wilderness Survival or reach First Aid 5 and Foraging 5	Plantain Poultice
Grind Up Wild Garlic On any surface	5 × any wild garlic	a mortar and pestle	No skill needed. Read: Wilderness Survival or reach First Aid 5 and Foraging 5	Wild Garlic Poultice
Make Splint In hand	Rag or Rag (Dirty) or Denim Strips or 3 more; Plank or Tree Branch or Wooden Rod	None	No skill needed	Splint

Recipe facts (ingredients, tools, skill levels and results) come from the game's own Build 42 script files, as catalogued by the PZFans craft table. The wording, grouping and layout are ours. Tool groups such as "any hammer" mean any item the game counts as that tool. Your game is the final word: if it disagrees with us, tell us and we will fix the page.