Screws threaded - GillesBouissac/agentscad GitHub Wiki

Full functional threads 3D printable

Prerequisites

See instructions here

Adapt the reading to the standard you need

This tutorial applies to all standards. The examples are given for metric coarse standard.

Changes to do in the reading to adapt to other standards are summarized in this table:

  • MXC: Metric Coarse standard (International standard)
  • MXF: Metric Fine standard (International standard)
  • UNC: Unified National Coarse standard (US standard)
  • UNF: Unified National Fine standard (US standard)
  • BSW: British Standard Whitworth standard (UK standard)
  • BSF: British Standard Fine standard standard (UK standard)
Tutorial code MXC MXF UNC UNF BSW BSF 
mx-screw.scad
 
mx-screw.scad
 
mxf-screw.scad
 
unc-screw.scad
 
unf-screw.scad
 
bsw-screw.scad
 
bsf-screw.scad
 
mx-thread.scad
 
mx-thread.scad
 
mxf-thread.scad
 
unc-thread.scad
 
unf-thread.scad
 
bsw-thread.scad
 
bsf-thread.scad
 
mxBolt
 
mxBolt
 
mxfBolt
 
uncBolt
 
unfBolt
 
bswBolt
 
bsfBolt
 
mxNut
 
mxNut
 
mxfNut
 
uncNut
 
unfNut
 
bswNut
 
bsfNut
 
mxThread
 
mxThread
 
mxfThread
 
uncThread
 
unfThread
 
bswThread
 
bsfThread
 
M6
 
M6
 
MF6
 
UNC1_4
 
UNF1_4
 
BSW5_32
 
BSF5_32

This very simple code shows differences between standards:

Tutorial

Step Code Result
Hexagonal nut 
use <agentscad/mx-screw.scad>
use <agentscad/mx-thread.scad>


$fn=50;
screw  = M6();
mxNutHexagonalThreaded(screw);
Square nut 
use <agentscad/mx-screw.scad>
use <agentscad/mx-thread.scad>


$fn=50;
screw  = M6();
mxNutSquareThreaded(screw);
Hexagonal bolt 
use <agentscad/mx-screw.scad>
use <agentscad/mx-thread.scad>


// M6 bolt with 10mm thread length
$fn=50;
screw  = M6();
mxBoltHexagonalThreaded(screw,10);
Allen bolt 
use <agentscad/mx-screw.scad>
use <agentscad/mx-thread.scad>


// M6 bolt with 20mm thread length
$fn=50;
screw  = M6();
mxBoltAllenThreaded(screw,20);
Internal Thread alone 
use <agentscad/mx-screw.scad>
use <agentscad/mx-thread.scad>


// M6 bolt with 20mm thread length
$fn=50;
screw  = M6();
mxThreadInternal(screw);
External Thread alone 
use <agentscad/mx-screw.scad>
use <agentscad/mx-thread.scad>


// M6 bolt with 20mm thread length
$fn=50;
screw  = M6();
mxThreadExternal(screw);
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