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Question on Thread Creator

wolfgang_hochhäuslerwolfgang_hochhäusler Member Posts: 3 EDU
in FeatureScript
I created Nut and bolt both with diamter 8 mm. Then I added ISO-Thread, tried both 1 and 1.25 mm pitch. After exporting to stl and printing, there is no way that both fit. Should the diamter for inner and outer thread be different?


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Comments

  • klaus_krämerklaus_krämer Member Posts: 37 ✭✭
    edited March 11
    In my experience it's necessary to use different diameters. Screw threads (external threads) are cut into the cylinder and fit quite well using the intended thread diameter (e.g. 5mm for ISO M5).

    Nut threads or internal threads are added to the cylinder surface. It's not logical because the should also be cut out of the borehole.

    Currently I use 5 mm for screws and a borehole of 5.4 mm for nuts. Printed with these dimensions, they are fully compatible with ISO M5 threads on metal screws and nuts. Probably varying dependant on your 3D printer and nozzle size. Simply test it.
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