CurseForge · Minecraft mod
PAPA: Portable Aeronautics Physics Assembler
Assemble and disassemble Create Aeronautics physics structures with a handheld tool instead of placing/breaking Physics Assemblers all the time.
Quick answer
Which PAPA: Portable Aeronautics Physics Assembler release should I use?
PAPA: Portable Aeronautics Physics Assembler portable_physics_assembler-1.0.0.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 3 required mods have matching files.
Where it goes
Is PAPA: Portable Aeronautics Physics Assembler required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does PAPA: Portable Aeronautics Physics Assembler portable_physics_assembler-1.0.0.jar need?
portable_physics_assembler-1.0.0.jar. Change the file and its required mods may change too.
Install Create Aeronautics, Sable, Create first. We found matching files for this game-version and loader setup. 3 come through another mod in the chain.
3 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add PAPA: Portable Aeronautics Physics Assembler without breaking your instance.
Built for PAPA: Portable Aeronautics Physics Assembler portable_physics_assembler-1.0.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use portable_physics_assembler-1.0.0.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Create Aeronautics, Sable, Create first. We found matching files for this game-version and loader setup. 3 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside portable_physics_assembler-1.0.0.jar. It opens that exact file at the source.
About this project
What does PAPA: Portable Aeronautics Physics Assembler add?
This mod adds a handheld/tool version of Create Aeronautics' Physics Assembler. You can assemble and disassemble your honey-glued contraptions directly from your hotbar.
How it works
It's just one item, and it does exactly what you'd expect:
- Right-click a block: Assembles that block (and whatever is glued to it) into a physics object.
- Shift + Right-click a physics object: Disassembles it back into normal blocks, instantly snapping it to the nearest grid position and 90° rotation.
Under the hood, it uses the exact same server-side logic as the standard Aeronautics block, so the results are identical.
Crafting
Combine a normal Physics Assembler with two Sticks on a diagonal:

If you're in Creative, you'll find it in the Tools & Utilities tab.
Dev note: Unlike the physical block, this handheld tool snaps your physics contraption to the grid instantly when you disassemble. Since a held item doesn't have a tick loop, it skips the slow, multi-tick alignment animation the block usually does.
Requirements
This is an add-on, so you absolutely need Create Aeronautics installed to use it.
Modpacks
Feel free to use my mods in your modpack, just don't forget to give proper credit.
Other Mods by me
I run these mods together:
- Empty Hand Keybind - Hold Onto THIS
- Create: Take a seat, Piglin! - Automated Bartering - Addon for Create
- Create Safe Seating - Addon for Create
Project description from CurseForge.
Pick your setup
PAPA: Portable Aeronautics Physics Assembler by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
PAPA: Portable Aeronautics Physics Assembler versions and loaders
portable_physics_assembler-1.0.0.jar
19 Jun 2026
Looking for an older file? The official CurseForge project page is in Resources.