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Silicone Sleave for Merlin

After i did the cover that you can mold around the Merlin heater block, i wanted to make a sleave that can be put over the heater.

The mold comes in three parts, just drill up the holes to 3mm and assemble the parts with M3 screws to hold them tight. It is strongly recommended to use PTFE spray or other any other separating agent. The resulting sleave has a thickness of 1mm and can be easily ripped.

I recommend printing the mold in high quality to get a smooth surface, the silicone will show every small fault of the print.

MerlinSleave03 MerlinSleave05 MerlinSleave04Heatblock Sleave 03

Silicone cover for Merlin Hotend

Thomas Kramm from Hackerspace FFM created some nice Silicone sleaves for the Merlin hotend. Since he uses different heating elements than I, he uses shorter ones that I currently don’t have, I created an own version of this cover.

It protects against blisters 😉 and will reduce the amount of heat lost during print. With the cover the already printed parts will not be exposed to the heat as much as without and you can be a lot less discriminate with material cooling.

You can find the STL for the mold attached

I used silicone meant for tin molds, it holds up till 450°C and i think it will last quite a while at the <300°C it is used in this case.

I used Troll Factory Type 3 silicone

 

 

MerlinCover01 MerlinCover02 MerlinCover03 MerlinCover04 Heatblock Cover

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