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lego dimensions test block

a little test block to find the best dimensions to print something lego compatible. After looking at below link, you would think you need knobs and holes of 4.8 mm, but my print gave best knobs and holes at 5mm. http://www.robertcailliau.eu/Lego/Dimensions/zMeasurements-en.xhtml


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I did find that the horizontally printed 5mm hole  is a bit more loose than the verticaly printed hole (locations of the black pins). I can't think of a reason for this ... any suggestions ?

The included file is a "design spark mechanical" file ...

Materials and methods

PLA, Ultimaker2



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