Bambu Studio 2.2.0.68

This is a minor beta version based on V2.2.0 Public Beta. Please note that this version is still in the beta testing stage. 3MF files generated with this version are not compatible with MakerWorld. MakerWorld will prompt users to re-upload 3MF files generated by the official version of Bambu Studio.

Features

Helio Additive Simulation Integration (Beta)

We're excited to introduce Helio Additive's thermal simulation capability into Bambu Studio, starting with this public beta. Helio Additive ↗ is a technology provider specializing in thermal simulation and optimization for G-code. Their simulation engine helps predict temperature-related issues such as warping, poor bonding, or sagging, before printing begins.

📓Why it matters: Instantly catch overheating or undercooling issues before printing - improving strength, accuracy, and reliability without trial-and-error.

How to use

1. Go to Preferences > Helio Options, and check Enable Helio Slice. Enabling this option confirms that you agree with the Helio Privacy Policy ↗.

1. Slice your model as usual.
2. Click the "Helio Action" button in the top-right toolbar.
3. Enter your estimated chamber temperature range (for best results, use the real chamber temp if known).

1. Click "Confirm" and wait for the simulation to run.
2. Once complete, view thermal results overlaid on your sliced model.

Simulation results are based on thermal index values:

- -100 → Too Cold: Tensile strength can drop by ~50% (based on ASTM D638 dog-bone testing).

- 0 → Ideal: Maximum strength and dimensional accuracy.

- +100 → Too Hot: Layers may stay molten too long, leading to sagging or collapse.

Aim to keep most of your part around 0 for best mechanical performance.

⚠ Current Limitations & Supported Configurations:

• Supported Printers: Bambu Lab X1, X1C, X1E, H2D
• Supported Filaments: Bambu PLA Basic, PLA Lite, PLA Matte, PLA Silk+, Bambu ABS, PC, PETG HF, TPU 95A HF
• File Requirements: G-code must be monochrome, sliced by layer sequence (no multicolor or multi-material support yet).
• Feature Scope: This version supports thermal simulation only and G-code optimization will be introduced in a future release.
• Free Access During Beta: You can use Helio simulations for free during the beta by claiming a limited-access key and 1000 free keys are available globally. When all keys are claimed, Helio will pause and release more in the next phase.

For more information or help, Join the Helio Additive Discord ↗.

Improvements

New Clumping Detection By Probing for H2D

To address potential nozzle-wiping issues during H2D prints, a new option “Enable Clumping detection” has been added for the H2D profiles under the Advanced tab (enabled by default). When enabled, Bambu Studio will reserve a non-printable area at the top of the build plate to coordinate with firmware-level wiping checks. The tower structure will be adjusted based on the type of parts on the build plate:

• For single-color models: An additional tower with a height of 20 layers will be generated. If the part itself is shorter than 20 layers, the tower will match the part’s height.
• For multi-color models: If the existing purge tower is already taller than 20 layers, no change is made; otherwise, the tower will be extended to 20 layers.

⚠️ Note: This feature requires a compatible firmware(H2D V01.01.30.00 Public Beta or later) version to function.

Bug Fixes

1. Fixed a retraction calculation bug in certain 3mf files caused by the "Extra length on restart" . (#7222 ↗)
2. Fixed several spelling errors and thanks to @eried for the contribution.
3. Updated portions of the Turkish translation and thanks to @fatih5228 .
4. Fixed an issue where the Create Filament Preset dialog could not be resized properly — thanks to @gunlock .
5. Fixed a crash issue that occurred on some third-party printers after sending a print job. (#7295 ↗, #7392 ↗)
6. Fixed a bug where duplicate filament entries were added after importing an OBJ file. (#7682 ↗)
7. Fixed an issue where calibration could not be initiated on H2D when the left and right nozzle diameters were different. (#7543 ↗)
8. Added a new option under Preferences > 3D Setting to remember the last used color scheme. When enabled, Studio will restore the color scheme used before the last shutdown. (#7252 ↗, #7131 )