Charles Edward Pax

Open Source 3D printing research and design

Heated Kapton is Beautiful

with 3 comments

Update 2010-04-18: Bre posted the video from the great night of kapton sanding.

I’ve been testing the new MakerBot Heated Build Platform and discovered something that make me very happy. Sanding the Kapton film with 220 grit sand paper makes printed objects stick perfectly. See the video below.

After an initial bit of frustration with the heated build platform I sanded the surface with 220 grit sand paper, increasing the surface area significantly, thus increasing the adhesive force. Since doing this I’ve had fewer failed prints, most of which were due to the Kapton being too cool.

Take a look a the difference in Kapton surface texture in the image below. The left side is unsanded. The right, sanded.

I’ve only tried the 220 grit paper, so I encourage everyone to test different coarsenesses and comment on your results. As I develop the conveyor belt build platform I will surely use the sanding method. The heated build platform is worth every penny.

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Written by Charles Edward Pax

2010.04.11 at 15:45

Posted in makerbot

3 Responses

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  1. Its interesting that you say that sanding kapton aided grip… Nophead reported the exact opposite here: http://hydraraptor.blogspot.com/2010/03/heated-bed-mk3.html

    Perhaps the issue was that he used fine emery paper instead of the much coarser sandpaper you used?

    Worth investingating, perhaps.

    Ru

    2010.04.13 at 07:59

  2. [...] Charles wrote it up on his blog: After an initial bit of frustration with the heated build platform I sanded the surface with 220 grit sand paper, increasing the surface area significantly, thus increasing the adhesive force. Since doing this I’ve had fewer failed prints, most of which were due to the Kapton being too cool. [...]

  3. Came across this tip amidst pulling my hair out. At that point, I was printing a big brim, then taping that down to the bed with spare kapton. With the sanded bed (I believe I’m using even coarser, around 180) I haven’t had anything lift up, no matter what size. Thanks a ton!

    Eric

    2013.07.13 at 15:06


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