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  1. WCarpt

    Adding an attachment point to a plastic material

    Interestingly, the gasket New Holland sent me as a replacement was 1/4" wider and was significantly firmer, which was totally unacceptable. I tried to tell New Holland it wouldn't work properly but was blown off---so much for New Holland's engineering excellence. I found the equivalent soft...
  2. WCarpt

    Adding an attachment point to a plastic material

    Thanks for your additional input. Adding a stiffener would work for the top piece but another issue is the bottom opposing piece bowing with pressure. Although it has a tendency to deform less with pressure than the top access cover, I have to take it into consideration also. As you might guess...
  3. WCarpt

    Adding an attachment point to a plastic material

    Thanks. To prevent the bowing up of the cover, I need to devise some way to provide a clamping force between the too widely spaced existing bolts. If I use a fairly thin piece of metal, it needs to be formed to match the curved surface of the edge of the cab top. Since I'm but not a metal...
  4. WCarpt

    Adding an attachment point to a plastic material

    It seems like there is no good way to resolve this very poor design. I do like the Signature Line of SnTMan which is "The problem with sloppy work is that the supply FAR EXCEEDS the demand." As was mentioned, mold release would be a very good idea to put on the gasket---if the OEM had put some...
  5. WCarpt

    Adding an attachment point to a plastic material

    I very much agree that this is a poor design but now I have to somehow address it so as to make sure it doesn't leak. I don't want to have a problem with water getting into the top of the cab. I am not trying to stiffen the cover but rather would like to provide a more uniform clamping force...
  6. WCarpt

    Adding an attachment point to a plastic material

    A problem is how do I fab a metal back-up plate that conforms very closely to the curved surfaces so that the glue would hold sufficiently to the plastic? Around the perimeter of the access hole, toward the inside, there is nothing directly below the area to screw a bolt into. Away from the...
  7. WCarpt

    Adding an attachment point to a plastic material

    I don't know if there is a better place to address my issue but I thought I would start here. I need to add two more attachment points or "ears' to a plastic material on a cab of a tractor. Since the manufacturer did not properly space the bolts that attach an access cover to the cab, the thin...

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