Top Panel Door Mod for Prusa CoreOne / Core One
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This upgrade transforms the top panel of the Prusa CoreOne into a hinged door, giving you easy access to the extruder.
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Model information
- Source
- Printables
- Category
- Prusa Parts & Upgrades
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
It's ideal for maintenance, filament changes, or simply checking on the printer's operation without having to remove the entire top panel. The custom-designed hinges are engineered to hold the door securely in both fully open and half-open positions, so it stays where you need it without getting in the way.
A fun design detail: the handle is shaped like a car spoiler — because functional parts can have personality too!
The parts are designed for easy 3D printing without supports. PLA or PETG works well, with 2 perimeters (walls) being sufficient for strength.
The design requires no modifications to the original Prusa top panel — it's fully reversible upgrade.
Hardware needed:
- 21x M3x10 screws
- 13x M3 hex nuts
- 6x M3 square nuts
Assembling guide:

If you enjoy this design and want to support my work, consider buying me a coffee! Every little bit helps me keep creating practical and fun 3D printable upgrades like this one.
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