Metric Screw Thread Library

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Published on September 28, 2012

Description

A library for creating parameterized screw threads.

Instructions

Use this library to generate any size of metric screw threads.

Only use module "thread(P,D,h,step)" using the parameters:
P - screw thread pitch
D - screw thread major diameter
h - screw thread height
step - step size in degree




ISO specification from:
en.wikipedia.org/wiki/ISO_metric_screw_thread

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Hi, I can not use the file screwthread.scad because I get an error
WARNING: hull() is not implemented yet for 3D objects!

What can I do?

My version of OpenSCAD is 2011.06 under Windows.
Thanks
Regards, Icare

Hi! I am quite new to this and using AutoCAD2012. My method to extract the screw from the .stl format to .dxf format is by using the CAD forum convertor - with this you have one specific size of the thread. How are you choosing the specifics for this screw? If someone could please help me with this it would be greatly appreciated? :)

Thank you in advance!

If you want to create different sizes you need to use the file "screwthread.scad" with OpenScad (http://www.openscad.org/), and change the parameters in the file. OpenScad then generates the new stl file for you.

Hi thats so cool i tried an Standard M12 (for my drawing to extract it for an inner thread) but i just did get an "full" cylinder any hint for me ?

its working for me with "thread(1.75,12.0,10,20);" using openscad version 2012.05.12

what version are you using and/or what parameters have you tested?