Parametric Spring Target Game

A lightweight 120g, modular and parametric 3D printed target game launcher, designed for recreational use with soft foam balls or paper balls only.
The model includes a removable forearm support and parametric elastic holes, so it can be adapted to different preferences and elastic setups.

This is a parametric 3D printed spring target game launcher, designed as a lightweight and modular accessory for safe recreational target play.

The complete assembly weighs only about 120 g including the elastic, making it easy to handle and fun to use in a controlled outdoor target setup.

The model is composed of multiple parts and can be assembled with or without the forearm support.
The forearm support is optional, so the launcher can be used in a lighter and more compact configuration if preferred.

The design is also parametric: both the forearm support and the elastic holes can be adjusted to better match your setup, elastic diameter, and preferred configuration.

This project is intended only for soft foam balls or paper balls.

It is not designed for power, hunting, self-defense, or any dangerous use.
The goal is to create a fun, lightweight, customizable and 3D printable target game for soft recreational projectiles only.

Main features

• Lightweight design: approximately 120 g with elastic installed
• Modular construction
• Optional removable forearm support
• Parametric forearm support
• Parametric elastic holes
• Easy to print
• Designed for soft foam balls or paper balls only
• Suitable for recreational target practice in a safe and controlled environment

Intended use

This model is intended for:

• soft foam balls
• crumpled paper balls
• recreational target practice
• safe outdoor play
• maker experimentation with parametric design

Not intended for

This model is not intended for:

• stones
• metal balls
• glass marbles
• ceramic balls
• hard plastic balls
• dense or heavy projectiles
• hunting
• self-defense
• use against people or animals

Please use responsibly and always follow local laws and safety rules.

Modular configuration:
The model can be used in its simplest configuration by printing only the Main Launcher Body file.

For the complete setup, you can also print and install the optional parts:

• Forearm Support
• Forearm Support Bracket
• Handle

This allows you to choose between a compact lightweight version or a more complete version with forearm support and improved handling stability.

Print Settings

Recommended materials

ASA
Recommended for general use. Good outdoor resistance, good strength, and a clean finish.

ASA-CF
Recommended for a stiffer, more premium and technical version.
Use a hardened nozzle.

ASA recommended settings

• Nozzle: 0.4 mm
• Layer height: 0.20 mm
• Walls/perimeters: 4–5
• Top layers: 5–6
• Bottom layers: 5–6
• Infill: 35–45%
• Infill pattern: Gyroid, Cubic or Grid
• Nozzle temperature: 250–260 °C
• Bed temperature: 95–105 °C
• Enclosed printer: recommended
• Cooling fan: low
• Brim: recommended for larger parts

ASA-CF recommended settings

• Nozzle: 0.4 mm hardened minimum
• Preferred nozzle: 0.6 mm hardened
• Layer height: 0.20 mm
• Walls/perimeters: 4–5
• Top layers: 5–6
• Bottom layers: 5–6
• Infill: 35–45%
• Infill pattern: Gyroid, Cubic or Grid
• Nozzle temperature: 255–270 °C
• Bed temperature: 95–110 °C
• Enclosed printer: strongly recommended
• Cooling fan: low
• Dry filament before printing: recommended

Assembly Notes

The launcher is modular.

The forearm support is optional and can be installed or removed depending on the preferred configuration.

The model is parametric, so you can adjust:

• forearm support size/geometry
• elastic hole diameter
• elastic hole layout
• elastic fit depending on your tube/band size

Before using the launcher, check that:

• all printed parts are solid and undamaged
• the elastic is correctly installed
• the elastic is not cracked or worn
• the pouch/holder is securely attached
• the setup is used only with soft foam or paper balls

Safety Disclaimer

This model is intended only for soft foam balls or paper balls in recreational target play.

Do not use hard, dense or heavy projectiles.

Do not use stones, metal balls, glass marbles, ceramic balls, hard plastic balls or similar objects.

Do not use for hunting, self-defense, or against people or animals.

Use only in a safe and controlled environment.

Adult supervision is recommended when used by minors.

Print Profile Note

I currently do not provide Bambu Lab print profiles because I do not own a Bambu printer.

All models are personally tested and successfully printed on a Qidi Plus 4.
They are designed to be easy to slice on any well-calibrated FDM printer.

Verified community print profiles are welcome and appreciated.

The parametric version is intended to be edited from Fusion 360 / MakerWorld Customizer (PC version). Bambu Handy is mainly intended for direct printing from ready print profiles and may not provide full access to editable source geometry.