Thingiverse
Marble run
di Waessman
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If you want print the bottom and rail with infill and no infill in the center part and use bridge on the 60mm and 80mm open space circle, i splitted up in two parts.
Have in mind the mid part has to start at 3mm, not from 0, otherwise it wont slice (simplify)
Insert one stl at time, and it center it self. Be sure you can bridge 60mm circle before if you attempt.
Supportfree, angle on 45 degrees under the rails.
Material needed if you use 18% infill in the rails and bottom, and nothing in center is 204 grams.
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The v2 is only complete version, also supportfree because the parts added inside, just use the infill you think you need .. around 15-18% i.m.o
Have in mind the mid part has to start at 3mm, not from 0, otherwise it wont slice (simplify)
Insert one stl at time, and it center it self. Be sure you can bridge 60mm circle before if you attempt.
Supportfree, angle on 45 degrees under the rails.
Material needed if you use 18% infill in the rails and bottom, and nothing in center is 204 grams.
__________________________
The v2 is only complete version, also supportfree because the parts added inside, just use the infill you think you need .. around 15-18% i.m.o
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