Dreame R20 dust bin cover

(version Française plus loin)

Dreame R20's dust bin cover hinges are rather small and can break off easily.
This is a replacement design for the hole cover assembly, except the exterior gasket.
If your cover is broken, just take out the exterior gasket and place it around this print.

The interior gasket is very difficult to remove from the existing cover, as it tends to break off.
Luckily, it is a very simple design, that can be printed in TPU.
Hint: you could also fill the gasket groove with bathroom silicone sealant!

The cover itself should be printable on any FDM printer.

Prefer PETG, because it is flexible, and the hinge will be harder to break than PLA.

For the gasket, I used TPU with the following settings:

• 3 solid layers on top and bottom
• 3 perimeter shells
• very low infill (10% Gyroid in superslicer) so that the gasket is soft
• hilbert curves top layer, to prevent the funnel from separating lines.
   

I used a modified Ender 3v2 with direct drive for the TPU print (Gasket).
 

To design this, I took measurements with calipers, and took a photo to measure the exterior groove features in the Gimp photo editor (photo attached).
I did partial prints of the hinge and lock areas to check proper alignment before I printed the whole thing (see photo).

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La charnière du couvercle du bac à poussière du Dreame R20 est assez fragile, et peut se casser facilement.
Cette pièce remplace l'ensemble du couvercle, à l'exception du joint extérieur.
Si votre couvercle est cassé, récupérez simplement le joint extérieur et enfilez le autour du résultat de votre impression.

Le joint intérieur est très difficile à retirer du couvercle existant sans l'abîmer.
Heureusement, il est de conception très simple, et facilement imprimable en TPU.
__Astuce:__ vous pouvez simplement remplir la rainure du joint intérieur avec du joint silicone de salle de bains!