If BuildFlow prevents you from printing a model or it doesn't print properly, there may be an issue with how the model was created. You may see a message like the one below:
Usually, you are able to fix these bad models by 'repairing' them.
There are two really easy tools you can use to do this:
Microsoft 3D Builder
3D Builder is a free application available for Windows users (version 8.1 or higher) that allows you to create and edit 3D models using a range of simple, yet powerful tools. Unfortunately, 3D Builder is not available for Mac users.
1. Open 3D Builder and create a new scene.
2. Click on 'Add', select 'Load object' and choose the model that needs repairing.
3. Click 'Import model' to start working with your file.
4. If your model needs repairing, it will have a red outline and a notification as seen below. Click on the notification to instantly repair your model.
5. Once repaired, make sure you click on the 'save' icon at the top right corner of the application. This will overwrite the same file you uploaded instead of creating a new file, so when you go to upload to BuildFlow again, choose the same file.
Netfabb Online Service
Netfabb is a free online tool that allows you to upload your STL files and re-download a repaired version. We recommend this tool for Mac users as an alternative to 3D Builder.
1. Login with your Autodesk account, which will be the same as your TinkerCAD login.
2. Click 'Upload 3D model' and choose the STL file that needs repairing.
3. Once the file has finished processing, click on 'Download' to receive a fixed version of your file.