How to replace the silicone cover on the Ultimaker 3

Follow these instructions to replace the silicone cover on the Ultimaker 3:

Parts required:

  • 1 x Silicone nozzle cover

Time:

  • 5 minutes (Longer if the nozzles have to cool down first)

Disassembly

1. Open the fan bracket

  • Move the print head to the front and place it approximately in the middle of the X axle for easier access
  • Gently open the front fan bracket

Caution: Make sure both print cores are cooled down. Do not perform the following steps if the nozzles are hot as there is a risk of burning yourself.

2. Remove the old silicone cover

  • Push the left side of the silicone cover out through the fan bracket with a screwdriver or your finger
  • From the underside of the fan bracket, take the left side of the cover and pull the silicone cover out

 D01_Open-fan-bracket.jfifD02.1_Push-out-silicone-cover.jfif D02.2_Remove-silicone-cover.jfif

Reassembly

1. Place the new silicone cover

  • Hold the silicone cover with the flat side facing down and the larger hole on the right
  • Hold it behind the open fan bracket

 R01.2_Hold-silicone-cover.jfif R01.1_Orientation-silicone-cover.jfif

2. Insert the top and bottom tabs

  • From the underside of the fan bracket, first insert the two tabs at the top
  • Bend the silicone cover to fit the two tabs at the bottom of the fan bracket

  R02.1_Insert-silicone-cover-top.jfif R02.2_Insert-silicone-cover-bottom.jfif

3. Align the left and right side

  • Press on the underside of the silicone cover at the left and right side to fit the flaps on either side of the fan bracket

 R03_Align-sides-silicone-cover.jfif

4. Align the middle

  • Take the left side of the cover between your thumb and index finger. Pull it slightly towards the left and towards you to fit it around the metal strip in the middle
  • Take the right side of the cover between your thumb and index finger. Pull it slightly towards the right and towards you to fit it around the metal strip in the middle

 R04_Align-middle-silicone-cover.jfif

5. Ensure that the new cover is correctly aligned

  • The silicone cover should be completely flat on the underside of the fan bracket
  • If it is not, adjust the silicone cover’s flaps accordingly

 R05.1_Position-silicone-cover-incorrect.jfif R05.2_Position-silicone-cover-correct.jfif

Incorrectly positioned silicone cover (left) and correctly positioned silicon cover (right). Note the corner flap.

6. Close the fan bracket

  • If the new silicone cover is correctly placed, close the front bracket again

R06_Close-fan-bracket.jfif

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