I tried a lot to imitate the funny look of duplo models + imitate real external tank and booster rockets look (also with using color changes)
all is made proportionally equal
you can adjust however the lengths of tank and booster rockets - simply by printing more/less intermediate bricks of your choice
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Print instructions:
well there is a lot to print..
basiclly there is only little support needed, which is easily removed
exception: external tank round bottom, which is printed upside down, because of nice round sourface
if you think, that your kid can throw it on the floor a lot, possibly increase perimeters/infill of critical parts (like top and bottom)
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Assembly:
please note, that duplo connectors are size for quite nice fit with original duplo bricks
because originals are very smooth, it fits them very nicely
β BUT joining 2 printed parts together is something else, because of layering of printed models - there is much more friction!
so as a result - it is tough actually to join 2 parts together as-is
so thats why you need to use some sand paper adjustments or I have found quick and easy way to do it with pliers - simply rubbing the protruding connector parts until the connection fits well
I decided to do it this way, so all those parts can still be used with duplo original bricks - otherwise, the connection would be too loose with them
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