Models Not Sticking - Improving Adhesion to the Platform

Issues with models not adhering to the platform can be the result of an number of different causes. It is important to cover some of the basics before proceeding to more advanced troubleshooting.

The number one cause of build failures and models not adhering, is due to incorrect preparation of a print job. 


1. The first thing to check when starting a print, is to ensure that you have the correct Material Profile selected in RayWare. At the top of the model viewing window is the current machine and material selected:


Once clicked, you can select the proper Material Profile and Layer Thickness you wish with to print with:


Note: Check resin supply frequently to ensure no expired material is used. Always mix material thoroughly before use


2. If printing horizontal models, always check that the models are completely flat on the platform by selecting a model and using the Base tool:


Hover the mouse over the model and click where you you want the base of the model to be defined:



Once the models are placed flat on the build platform, rotate your view to the underside of the models, and ensure that the bottom of the model casts a complete "shadow", indicating it is completely flat:



Note: the model on the left is printable, whereas the model on the right will exhibit issues printing, and potentially damage the Resin Tank



3. If printing hollow models, adequate drainage holes or supports must be used for successful printing


4. If printing vertically, adequate supports are necessary for successful prints. It is recommended to use the Road style supports with the High density option selected. Pay special attention to the critical surfaces outlined below. It may be necessary to add additional supports using the Edit Supports function:


Note: It is generally recommended to print models horizontally, as print times are much quicker, and material waste is minimized



5. Check to ensure the Tank Heating option is enabled on your SprintRay Pro. Tank heating ensures that the material temperature stays in a controlled range for the best results possible.

  How to Enable:

Tank heating is disabled by default - the heater will not activate until you turn on the Tank Heating setting in your printer’s General Settings. Once you enable tank heating, it will automatically activate when the detected ambient temperature is lower than the desired resin temperature.


6. Check your Resin Tank and ensure it is not worn out and in need of replacement.

Resin Tanks are a consumable item, and after dozens of prints, and thousands of layers, the film on the bottom intended to gently release each layer after curing begins to lose it's non-stick properties, as well as the correct tension needed to evenly peel away from the models during a print.

The life of the Resin Tank can vary significantly due to the types/number of models printed, as well as the resin being used. 

If you suspect your Resin Tank is nearing the end of it's life, it may be time to purchase a replacement.


7. If you are still having difficulty getting your prints to adhere to the platform, it may be necessary to add additional texture to the surface of the Build Platform using 180-220 grit sandpaper.

To do this, you'll need: 100-200 grit sandpaper, 91% or better Isopropyl Alcohol, paper towels, and gloves

Starting with a clean, resin-free platform, sand the surface using light "X", or cross-hatching pattern.The idea here is to give the platform a texture to firmly grip models, not to polish it.

Before using your newly roughened Build Platform, you'll want to clean its surface with a paper towel and 91% or better Isopropyl Alcohol to ensure that no metal shavings will contaminate your resin.


If you are still experiencing issues with your models adhering, please reach out to us directly by submitting a Support Ticket or calling us at: 800-914-8004


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