Original Prusa Enclosure Door Seals V2

I have sometimes the problem that the doors of the Original Prusa Enclosure start to vibrate at certain printer speeds. That causes the plexiglas to hit the metal frame and cause noise.

After creating my first model, which should mostly fix the rattling issue, a comment made me think about how a seal could be applied all around the doors. Attaching them to the doors is a bit complicated because of the hinges and the magnet holders. Also super glue will create a white layer on plexiglas.

The files from this model attach to the enclosure steel edge and functions similarly to my other model which attaches to the plexiglas doors.  Because of its larger inner slot width the plexiglas model is much easier to print because stringing and the seams are not such a problem as with this model.

You need:

• In total you need 8 seals.
• For each of the four sides of the door opening you need one left and one right model.
• If you use the temperature/humidity sensor in the upper left corner you need 1x EnclosureSealTopLeftSensor.stl
• If you use the filament guide in the upper right corner you need 1x EnclosureSealTopRightFilamentGuide.stl
• Maybe a bit of super glue, especially for the upper right corner/filament guide, the other seals may stick without glue.

Printing:

I used “Das Filament - TPU V2” (94A) and printed on a Prusa MK4 with Input Shaping and sliced with PrusaSlicer 2.7, all my settings depend on those factors.

I attached my PrusaSlicer file which you can use as reference.

• Print Settings
  • Layer Height: 0.1mm
  • Nozzle: 0.4mm
  • The small flanges (0.78mm width) on the seal sides are optimized for two line printing at 0.4n and 0.1mm layer height.
  • Seam Position: Rear (orient all seals so that the visible side faces the front)
  • Infill: 100%
  • Supports: No
  • Complete individual objects.
• Filament settings:
  • Nozzle Temperature: 220°C
  • Max volumetric speed: 1.5mm³/s
  • Retraction length: 3mm
  • Minimum travel after retraction: 0mm
• Filament: TPU/Flex, I used “Das Filament - TPU V2” (94A)
• Print Orientation: The closed spine of the parts on the print bed
• Smooth PEI sheet with glue stick, otherwise TPU sticks too firm to it. The smooth PEI sheet produces a very smooth “spine” on the seals, which will be the visible edge after installation.

Afterwards I still have to cleanup the cuts in the seals where they will bend with sharp pliers and tweezers.

I'm not 100% satisfied with the printing result, if you create a make, please share your experiences and settings. I'm still new to the 3d printing world so would be happy to learn how to improve.

Installation:

Just slide them onto the steel edges of the enclosure, be sure to install left and right seals correctly. Right is where the screw heads are sitting which hold the frame together.

The center in the cutout where the left and right seal meet, will push slightly against each other and hold each other in place.

I only applied a bit of super glue to the upper right corner above the filament guide

Used in combination with:

• https://www.printables.com/model/530535-stiffening-lift-off-door-hinges-for-original-prusa
• Enclosure hinges from: https://www.printables.com/model/380063-prusa-enclosure-lift-off-door-hinge
• https://www.printables.com/model/552897-prusa-enclosure-door-seal-heat-insulation