Frequently Asked Questions

aftermarket fan or using a small handheld fan to cool down the
layers faster.
(2) Printing at too high of a temperature
If you are already using a cooling fan and you are still seeing
this issue, you may want to try printing at a lower temperature. If
the plastic is extruded at a lower temperature it will be able to
solidify faster and retain its shape. Try lowering the print
temperature by 5-10 degrees to see if it helps. You can do this by
clicking “Edit Process Settings” and selecting the Temperature tab.
Simply double-click the temperature setpoint you wish to change.
Be careful not to lower the temperature too far, as otherwise the
plastic may not be hot enough to extrude through the small
opening in your nozzle.
(3) Printing too fast
If you are printing each layer very quickly, you might not
allow enough time for the previous layer to properly cool before
you are trying to deposit the next layer of hot plastic on top of it.
This is particularly important for very small parts where each layer
only requires a few seconds to print. Even with a cooling fan, you
may still need to decrease the printing speed for these small layers
to ensure you provide enough time for the layer to solidify.
Thankfully, Simplify3D includes a very simple option to do
exactly that. If you click on “Edit Process Settings” and select the
Speeds tab, you will see a section labeled “Speed Overrides.” This
section is used to automatically slow down the printing speed for
small layers to ensure they have enough time to cool and solidify
before printing the next layer. For example, if you allow the