Below are some examples of common issues and troubleshooting solutions. Consult this part of the guide if you are having difficulties and do not hesitate to contact our Tech Support.
Delamination occurs on the bottom layer of parts at the corners or on part edges.
Solution: Check Blade
Have the physical gap on your re-coating blade checked.
- For Zephyr blades
- Set the blade gap to 0.004 inches (0.102 mm)
- For doctor blades
- Set the blade gap to 0.006 inches (0.1524 mm).
Watch the buildup of the first few layers of the part to determine that the surface is being properly coated with material. Check for signs of material starvation or de-wetting.
The top surface of the part is not smooth and level.
Solution: Check Re-coating Blade
This condition is somewhat common and arises due to the viscosity of the material and the presence of debris that may become suspended in it.
Check the re-coating blade to make sure the bottom surface is clean and filter debris from the vat.
It is very important that you maintain the correct material viscosity in your stereolithography machine. The viscosity can increase over time, and this can cause problems in building parts. If the viscosity increase is severe enough, the material may have to be replaced, resulting in significant expense and lost production time.
If increasing viscosity is identified early, the material can, in most cases, be saved. Regularly measuring resin viscosity can provide an early indication of the problem. This must be done even if the machine is not used often, as resin viscosity can change even when the machine is idle.