3D Printed Suction Inducing Screen Prevents Material from Escaping
The Fenner Drives extrusion plant was experiencing issues with resin escaping from their extrusion line. This in turn caused reduced suction consequently limiting the system’s ability to transfer resin through the line.
This was occurring across all 9 of their material vacuum transfer systems. They needed to come up with a solution that would prevent the material from plugging the oxygen control flapper. A traditional metal solution would not work, due to the chance of metal escaping into the system.
Using NinjaFlex filament, they designed a 3D printed press fit, self-retaining screen to be inserted upstream before the controller. The screen included holes that were small enough to stop the material from reaching the flapper and allowed the required air flow to pull the flapper shut.
The 3D printed solution was quick and inexpensive compared to designing and manufacturing the part externally. The total cost was $400 for 9 prints. Designing this also prevented future maintenance time required to unclog and clean the oxygen control flapper. This saved the manufacturer $10,500 / year in maintenance costs!
“Without this quick solution, we would have lost days of production time.”
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View of flapper inside of the controller where resin would escape the system.
PRINT TEMP: 235°C
PRINT TIME: 1 hour