It can be hard to keep corners and narrow components of a printed object from curling up from the print bed. This may be due to the design of the object, the type of filament you are using and the settings that you are using.
How to fix it
Helper discs act like feet that are used to help anchor your object to the print bed. These helper disks can be added to your design as an alternative to using rafts, as it will use less plastic and print quicker. The disks can easily be peeled off or cut away once the print has finished.
1. Go to plater.buildflow.online and upload your STL file by selecting the 'ADD..." button.
2. Once your file has been uploaded and you've made any necessary changes to the scale or orientation of the model, identify where you think the model may lift up during a print. This will usually be at the corners or along narrow features.
3. For each area you identify, select 'ADD FEET' to generate a disc on the plate and move it to the desired location.
4. Select 'SAVE' once you are satisfied with the changes you've made. Return to BuildFlow and re-upload the new file you just saved (it will be named 'Me3D Plate').
5. Once the print has finished, carefully remove the helper discs by either snapping them off or using a sharp tool to remove the excess plastic.