Thingiverse
Folding DNA model kit no support necessary
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I loved the design made by mkuiper but I loathe printing support. I split the models in such a way that they can be printed without support. Simply glue them together afterwards (super glue works best I've found).
Adenine, Cytosine, Guanine and Thymine were easy to alter because the molecule is already symmetrical along a plane. The backbone was very hard to find a suitable plane for along which it could be split such that it would print without support. I've found one that works but it relies on solid cooling to print a few pretty steep overhangs.
Play with the orientation of the backbone with respect to your part cooling fan to achieve the best results (steep overhangs facing the direction of the airflow).
In addition I've also noticed that the stand seems to be split up into parts unnecessarily. I've combined the 3 parts that make up the bottom parts of the stand into one model. I've also split up the grip so that it can also be printed without the need for support. Maximu
Adenine, Cytosine, Guanine and Thymine were easy to alter because the molecule is already symmetrical along a plane. The backbone was very hard to find a suitable plane for along which it could be split such that it would print without support. I've found one that works but it relies on solid cooling to print a few pretty steep overhangs.
Play with the orientation of the backbone with respect to your part cooling fan to achieve the best results (steep overhangs facing the direction of the airflow).
In addition I've also noticed that the stand seems to be split up into parts unnecessarily. I've combined the 3 parts that make up the bottom parts of the stand into one model. I've also split up the grip so that it can also be printed without the need for support. Maximu
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