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The infill inside your 3D printed part plays a very important role in the overall strength of your model. The infill is responsible for connecting the outer shells of your 3D print, and must also support and upper surfaces that will be printed on top of the infill. If your infill appears to be weak or stringy, you may want to adjust a few settings within ideaMaker to strengthen the infill.

Check the following things to solve the problem.

  • Printing too fast

The extruder can only extrude as much plastic to its upper limit. If you set the infill printing speed too high, you will start to notice under-extrusion for the infill part. This under-extrusion will tend to create weak, stringy infill since the nozzle is not able to extrude as much plastic as the software would like. To reduce the print speed, click “Advance” and select the Layer tab. Adjust the “Default Printing Speed” which directly controls the speed that is used for the infill. For example, if you were previously printing at 50 mm/s, try decreasing that value by 50% to see if the infill starts to become stronger and more solid.

  • Increase the fill density

Another very powerful feature within ideaMaker is the ability to modify the fill density that is used for the infill of your part. You can adjust this setting by editing the “Fill Density” in print setting. The “Fill Density” is set as a percentage. For example, if you enter a value of 15%, the infill will take 15% volume of the inner space. By increasing the value, infill will take more volume of the inner space.