I need to print a 3d part on fdm printer (makerbot2) and fill it with epoxy with metal powder (so that it has a specific density). The problem which appears - all of the fill patterns I have seen build closed volumes inside, so you cannot fill with epoxy the whole volume of part. And with 0% fill the model cannot be printed because there should be some supports for top layers inside part.
Do you know any software, which can build some irregular fill patterns so they dont make closed volumes or which can build supports inside part (best would be automatically)?
Thank you in advance