threading.scad

Generic Threaded Screw Rods and Nuts.

Generic Trapezoidal Threaded Rods And Nuts

trapezoidal_threaded_rod()

Constructs a generic trapezoidal-profile threaded screw rod. This method makes much smoother threads than the naive linear_extrude() method.

• For metric trapezoidal threads, use thread_angle=15 and thread_depth=pitch/2.
• For ACME trapezoidal threads, use thread_angle=14.5 and thread_depth=pitch/2.
• For square threads, use thread_angle=0 and thread_depth=pitch/2.
• For normal screw threads, use thread_angle=30 and thread_depth=pitch*3*sqrt(3)/8.

Arg	What it does
d	Outer diameter of threaded rod.
l	Length of threaded rod.
pitch	Thread pitch.
thread_depth	Depth of threads. Default: pitch/2
thread_angle	Trapezoidal angle of threads. Default: 15 degrees.
starts	The number of lead starts. Default: 1
left_handed	If true, create left-handed threads. Default: false
center	If true (default), centers rod at origin. If false, sits it on top of the XY plane.

Example:

trapezoidal_threaded_rod(d=10, l=100, pitch=5, thread_depth=2, thread_angle=30);

trapezoidal_threaded_nut()

Constructs a generic trapezoidal-profile threaded nut.

• For metric trapezoidal threads, use thread_angle=15 and thread_depth=pitch/2.
• For ACME trapezoidal threads, use thread_angle=14.5 and thread_depth=pitch/2.
• For square threads, use thread_angle=0 and thread_depth=pitch/2.
• For normal screw threads, use thread_angle=30 and thread_depth=pitch*3*sqrt(3)/8.

Arg	What it does
od	Outer diameter of threaded nut.
id	Diameter of threaded rod to make a nut for.
h	Height/Thickness of the nut.
pitch	Thread pitch.
thread_depth	Depth of threads. Default = pitch/2
thread_angle	Trapezoidal angle of threads. Default = 15 degrees.
starts	The number of lead starts. Default = 1
left_handed	If true, create left-handed threads. Default = false
slop	Slop to make the printed parts fit tightly. Default = 0.2

Examples:

acme_threaded_nut(od=17.4, id=10.5, h=10, pitch=3.175, thread_depth=1, slop=0.15);

Metric and UTS (American) Triangular Threaded Rods And Nuts

threaded_rod()

Constructs an standard triangular threaded metric or UTS screw rod. This method makes much smoother threads than the naive linear_extrude method.

Arg	What it does
d	Outer diameter of threaded rod.
l	Length of threaded rod.
pitch	Thread pitch.
left_handed	If true, create left-handed threads. Default = false

Example:

threaded_rod(d=10, l=100, pitch=5, left_handed=true);

threaded_nut()

Constructs a standard metric or UTS (American) triangular threaded nut.

Arg	What it does
od	Outer diameter of threaded nut.
id	Diameter of threaded rod to make a nut for.
h	Height/Thickness of the nut.
pitch	Thread pitch.
left_handed	If true, create left-handed threads. Default = false
slop	Slop to make the printed parts fit tightly. Default = 0.2

Examples:

acme_threaded_nut(od=17.4, id=10.5, h=10, pitch=3.175, thread_depth=1, slop=0.15);

ACME Threaded Rods And Nuts

acme_threaded_rod()

Constructs an acme threaded screw rod. This method makes much smoother threads than the naive linear_extrude method.

Arg	What it does
d	Outer diameter of threaded rod.
l	Length of threaded rod.
pitch	Thread pitch.
thread_depth	Depth of threads. Default = pitch/2
thread_angle	Trapezoidal angle of threads. Default = 14.5 degrees.
starts	The number of lead starts. Default = 1
left_handed	If true, create left-handed threads. Default = false

Example:

acme_threaded_rod(d=10, l=100, pitch=5, thread_depth=2, thread_angle=30);

acme_threaded_nut()

Constructs an acme threaded nut.

Arg	What it does
od	Outer diameter of threaded nut.
id	Diameter of threaded rod to make a nut for.
h	Height/Thickness of the nut.
pitch	Thread pitch.
thread_depth	Depth of threads. Default = pitch/2
thread_angle	Trapezoidal angle of threads. Default = 14.5 degrees.
starts	The number of lead starts. Default = 1
left_handed	If true, create left-handed threads. Default = false
slop	Slop to make the printed parts fit tightly. Default = 0.2

Examples:

acme_threaded_nut(od=17.4, id=10.5, h=10, pitch=3.175, thread_depth=1, slop=0.15);

Standard Metric Trapezoidal Threaded Rods And Nuts

metric_trapezoidal_threaded_rod()

Constructs an standard metric trapezoidal threaded screw rod. This method makes much smoother threads than the naive linear_extrude method.

Arg	What it does
d	Outer diameter of threaded rod.
l	Length of threaded rod.
pitch	Thread pitch.
left_handed	If true, create left-handed threads. Default = false
starts	The number of lead starts. Default = 1

Example:

metric\_trapezoidal\_threaded_rod(d=10, l=100, pitch=5, left_handed=true);

metric_trapezoidal_threaded_nut()

Constructs a standard metric trapezoidal threaded nut.

Arg	What it does
od	Outer diameter of threaded nut.
id	Diameter of threaded rod to make a nut for.
h	Height/Thickness of the nut.
pitch	Thread pitch.
left_handed	If true, create left-handed threads. Default = false
starts	The number of lead starts. Default = 1
slop	Slop to make the printed parts fit tightly. Default = 0.2

Examples:

metric_trapezoidal_threaded_nut(od=17.4, id=12, h=16, pitch=2, left_handed=true, starts=2, slop=0.15);

Standard Square-Profile Threaded Rods And Nuts

square_threaded_rod()

Constructs a standard square-profile threaded screw rod. This method makes much smoother threads than the naive linear_extrude method.

Arg	What it does
d	Outer diameter of threaded rod.
l	Length of threaded rod.
pitch	Thread pitch.
left_handed	If true, create left-handed threads. Default = false
starts	The number of lead starts. Default = 1

Example:

square\_threaded_rod(d=10, l=100, pitch=5, left_handed=true, starts=3);

square_threaded_nut()

Constructs a standard square-profile threaded nut.

Arg	What it does
od	Outer diameter of threaded nut.
id	Diameter of threaded rod to make a nut for.
h	Height/Thickness of the nut.
pitch	Thread pitch.
left_handed	If true, create left-handed threads. Default = false
starts	The number of lead starts. Default = 1
slop	Slop to make the printed parts fit tightly. Default = 0.2

Examples:

square_threaded_nut(od=17.4, id=12, h=16, pitch=2, left_handed=true, starts=2, slop=0.15);