A native Kotlin/Jetpack Compose Android app that controls a Bambu Lab P1S over the local network, for a tablet or phone instead of a dedicated kiosk. Talks to the printer over Bambu's LAN-mode MQTT/FTP protocol, using a Material3 side-drawer navigation layout. This is a from-scratch Kotlin port of p1sTouchScreen-RPI, the original PySide6 app for a Raspberry Pi + touchscreen; the two share the same protocol know-how but no code.
Screens: Home, Print Files (browse/search/sort real files off the printer, 3MF thumbnails, tap to start a print -- verified live), Print Monitor (live camera feed, progress/layer/ETA, pause/resume/stop, speed -- verified live), Filament/AMS (4-slot AMS status + load/unload -- verified live), Control (jog/home/extrude/fans/light/temps), Settings.
Status: active work in progress, not yet fully polished, but every screen is built and verified against a real printer -- MQTT (live telemetry, all Control commands), FTP (file listing, thumbnails, starting a print), the camera stream, and AMS status/load/unload all work end-to-end on real hardware.
Print Files can be slow to load thumbnails the first time. This printer's FTP transfer speed over FTPS is slow in practice (tens of KB/s, not the multi-MB/s you'd expect on a LAN -- likely the printer's own embedded CPU being the bottleneck for the TLS overhead, not the network), so downloading and caching a preview image for every file in a large library can take several minutes the first time you open Print Files. Thumbnails are cached to disk afterward, so this is a one-time cost per file (until it's re-sliced/re-uploaded). If you'd rather skip this entirely, turn on Skip thumbnails in Settings -- Print Files will still list every file, just without previews.
Editing an AMS slot's filament overwrites the printer's own stored value -- there's no "reset to correct" afterward. The Filament/AMS screen's Edit button writes a slot's filament type + color directly to the printer (the same field a genuine spool's RFID tag would set), so after editing, Sync will correctly keep showing your edited value, not the original one -- Sync only ever reflects the printer's current state, it can't distinguish "edited" from "real." To restore a slot's real data, either physically remove and reinsert that spool (the AMS re-reads the RFID tag fresh on reinsertion) or edit it back manually.
Theme: Settings has a Dark / Light / Match Phone choice, applied immediately (no restart). The Python original is dark-only by design (a fixed Pi kiosk display), but a phone/tablet already has its own system theme worth respecting.
| Home | Side-drawer nav | Print Files | Settings |
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This is an independent, unofficial hobby project, not affiliated with or endorsed by Bambu Lab. It sends real commands to a real 3D printer, including heater setpoints, motion, and print start/stop -- software bugs, network issues, or misuse can cause failed prints, wasted material, damage to the printer, or in the worst case a fire or other property damage or injury if the printer is left unattended or its own safety features are disabled or malfunction.
This software is provided "as is", without warranty of any kind, express or implied. By downloading, installing, or using this software you agree that you do so entirely at your own risk, and that the author(s) and contributors shall not be liable for any claim, damages, or other liability -- whether in an action of contract, tort, or otherwise -- arising from, out of, or in connection with the software or the use or other dealings in the software, including but not limited to damage to your printer, your property, or any other property, or personal injury. You are solely responsible for supervising your printer and for complying with your printer manufacturer's safety guidance while using this or any third-party control software.
Always follow standard 3D printer safety practice: use a smoke/fire detector near the printer, don't leave it printing unattended for long periods, and use a printer that itself has functioning thermal-runaway protection.
This app only works over Bambu's local network (LAN) protocol -- it does not use Bambu's cloud. On the printer itself (screen or Bambu Studio/Handy), under network settings, enable:
- LAN Only Mode -- required for any local connection at all. Enabling it shows the printer's IP address, access code, and serial number, which you enter into the app's first-run/Settings screen. Note this also disconnects the printer from Bambu's cloud service -- you won't be able to use the cloud-based Bambu Handy app or cloud slicing while it's on.
- Developer Mode -- required in addition to LAN Only Mode for the Control screen's homing, jog, extrude, and fan commands (these go over raw G-code MQTT commands that the printer only accepts in Developer Mode). Print Files and Filament/AMS work with LAN Only Mode alone, but turn Developer Mode on too unless you specifically want the Control screen disabled.
Both toggles are printer settings, not app settings -- re-enable them after any printer firmware update if they get reset.
Requires Android Studio (or the command-line tools) with SDK 36 and JDK 17, and a device or emulator running Android 8.0 (API 26) or later.
git clone https://github.com/yaturner/p1sTouchScreen-Android.git
cd p1sTouchScreen-Android
./gradlew assembleDebugInstall onto a connected device/emulator:
./gradlew installDebugOn first launch, either connect to Mock (synthetic data, no printer needed -- handy for trying out the UI) or enter your printer's IP, access code, and serial number from its LAN Only Mode screen (see "Printer setup" above). The choice is saved and can be changed later from Settings.