# CHITUBOX Basic FAQ

## Mac OS Issues#

### Unverified Developer#

##### FIXED

Involved versions1.8.x

Open System Preferences > Security & Privacy,

Hit the Open Anyway button. It should solve your problem.

Or, in case the Open Anyway button was hidden by Mac OS, your can open your Terminal and enter:

sudo spctl --master-disable

Which could solve the problem once and for all.

### Error 6#

##### FIXED

Involved versions1.8.x

xcode-select --install

You don't need to install Xcode IDE.

After this is done, the 'Error 6 problem' should be solved for most cases.

### Silicon Mac (M1)#

Theoretically, you can run CHITUBOX on an Apple Silicon Mac by using Rosetta 2 (make sure your Mac version is updated to Big Sur). However, we can't promise that there is no performance issue when running CHITUBOX in this way.

## Windows Issues#

##### note

Please make sure you've installed all required environments.

### MSVCR110.dll Missing#

"MSVCR110.dll Missing" means you're missing Visual C++ Redistributable Packages for Visual Studio 2012, please download required environments from here.

### MSVCR120.dll Missing#

"MSVCR120.dll Missing" means you're missing Visual C++ Redistributable Packages for Visual Studio 2013, please download required environments from here.

### MSVCR140.dll Missing#

"MSVCR140.dll Missing" means you're missing Visual C++ Redistributable Packages for Visual Studio 2015, 2017 and 2019, please download required environments from here.

### Windows Explorer Keep Restart Repeatedly#

Invoke your Task Manager by pressing Ctrl + Shift + Esc, right-click Windows Explorer, then click End Task (not Restart).

In your Task Manager, click File > Run new task, input cmd, check Create this task with administrative privileges, then click OK.

Input:

regsvr32 /u "{CHITUBOX-Installation-Path}\CHITUBOX_Thumbnail.dll"

Note you need to replace {CHITUBOX-Installation-Path} with your CHITUBOX's installation path, for example:

regsvr32 /u "C:\Program Files\CHITUBOXPro V1.0.1\CHITUBOX_Thumbnail.dll"

Hit Enter to run it.

##### note

Your OpenGL version should not older than 2.0.

### Error -1073741701#

This is mostly caused by missing system files. You can fix it by following the 4th floor of this post.

If this doesn't solve the issue, you can try to fix it by opening your cmd (Run as administrator) and input:

sfc /scannow

### Error -1073741515#

This issue might occur due to some corrupted system files or damaged operating system files.

Pleaes try to fix the issue by following this post.

### Error -1073740791#

This issue might occur due to some corrupted system files or damaged operating system files.

You can try following methods to fix it:

Method 1: Open cmd on your PC (By using Win + R and input cmd), enter following command:

DISM.exe /Online /Cleanup-image /Scanhealth
DISM.exe /Online /Cleanup-image /Restorehealth

Method 2: Open cmd on your PC (by using Win + R and input cmd), enter following command:

sfc /scannow

If those method doesn't solve the issue, you might need to switch to another computer or download and reinstall your system from Microsoft's official website.

### Conflict with Fusion 360 or Failed to create OpenGL context for format QSurfaceFormat#

Please open System Settings> About> Advanced System Settings and remove the environment variable QT_OPENGL.

### This application failed to start because no Qt platform plugin could be initialized#

Please open System Settings> About> Advanced System Settings and remove the two environment variables QT_OPENGL and QT_PLUGIN_PATH.

## Linux Issues#

### Couldn't Find LibQt5Quick.so.5#

##### FIXED

Involved versions1.8.x

All .so.5 files actually exists under /lib path. CHITUBOX doesn't know where to find it. Try running this in your terminal before running AppRun:

export LD_LIBRARY_PATH=lib

Or, for convenience, you can create a .sh file in the root path of CHITUBOX and execute it every time you start CHITUBOX:

touch App.sh

Edit App.sh as below:

#!/bin/shexport LD_LIBRARY_PATH=lib./CHITUBOX

Save App.sh and quit,

run it:

sh App.sh

It should solve the problem.

## Plugin Issues#

### Longer Error -1#

1. Longer's control board process the resolution specially, we have confirmed the correct resolution x: 960, y: 1708. We have double-check and confirmed this, so please don't change it.

2. [Error code -1] After changing the resolution is an error in the internal code of the plug-in. Because you changed the resolution, an error was reported.

## File Issues#

### Thumbnail Abnormal#

Hold Ctrl + Shift + Esc to open the Task Manager, click File > Run new task, input cmd, check Create this task with administrative privileges, then click OK.

Input:

regsvr32 /u "{CHITUBOX-Installation-Path}\CHITUBOX_Thumbnail.dll"

Note you need to replace {CHITUBOX-Installation-Path} with your CHITUBOX's installation path, for example:

regsvr32 /u "C:\Program Files\CHITUBOXBasic V1.0.1\CHITUBOX_Thumbnail.dll"

Hit Enter to run it.

Input:

regsvr32 "CHITUBOX-Installation-Path\CHITUBOX_Thumbnail.dll"

Hit Enter to run it.

Disk Cleanup

Find your system disk (usually C drive), right-click to select properties, and click "Disk Cleanup".

Check "Thumbnails", then click "Clean up system files", and then click "OK".

Select "Delete Files".

Restart Explorer

Invoke your Task Manager by pressing Ctrl + Shift + Esc , right-click Windows Explorer, then click End Task (not Restart).

### Surface of Models Go Rough after Slicing#

When you load a CTB file back to CHITUBOX, you may notice that the surface of the model is rough, in fact, this is because each voxel of the model was rendered after sliced. As if you can clearly see the each pixel after you zoom in an image in Photoshop.
As it is shown in the figure, the height of each voxel is the layer height set in the slice setting. The length of each voxel is the length of each pixel on the screen, while the width of each voxel is the width of each pixel on the screen. A voxel is the smallest unit that constitutes a print.

##### note

This voxel image cannot be seen during the preview after the slicing. You need to reload the .ctb file in CHITUBOX to see it.

### Why STL files were scaled after importing to CHITUBOX?#

An STL file doesn't contain the exact unit, it only contains numbers. Therefore, different software read an STL in different units. For example, when using STL file, 1m exported from Blender will be read as 1mm in CHITUBOX. You need to test the corresponding proportion of your 3D modeling software and CHITUBOX before you export your models.

## Other Knotty Issues#

For some reason, you might encounter other issues caused by data corruption between versions. You can try the following ways to solve issues:

### Clean the Cache#

1. Open the log path (Setting/Help > Open Log). 📃Click here to learn how to open the log.

2. Close CHITUBOX Basic (the order matters).

3. Make sure you already closed CHITUBOX Basic, then delete all files and folders except machine folder and userLogin.cfg file.

4. Restart CHITUBOX Basic.

### Reinstall CHITUBOX#

If Clean the cache doesn't solve the issue, please try to reinstall CHITUBOX completely.

1. Open the log path and copy the 📁machine folder and 📄userLogin.cfg file to the desktop for backup.

2. Right-click CHITUBOX Basic and click "Open File Location" to find the installation path.

3. Uninstall CHITUBOX Basic.

4. Delete the installation path and log path.

5. Reinstall CHITUBOX Basic.

6. Copy the 📁machine folder and 📄userLogin.cfg file back to the log path and replace with the original file.

##### note

The log path names of Basic V1.9.0 and later versions are ChiTuBox, and versions before Basic V1.9.0 will have corresponding log path names, such as ChiTuBox V1.8.1.

## USB Drive Issues#

You might found that your printer can't read your USB drive properly sometimes. Mostly this is because your printer's control board was designed to work with USB 2.0 and FAT32 format with a volume equals to or lower than 16GB. USB 3.0 uses a larger current therefore can cause electrical interference to the control board sometimes. In summary, your USB drive should meet following requirements:

• FAT32 format
• USB 2.0
• ≤ 16GB