Clamps, bushings, and grips for wires and hoses. More...

Collaboration diagram for Clamps:

Files
file	clamps.scad
	Clamps, bushings, and grips for wires and hoses.

Functions
module	clamp_cg (size, clamp, cone, grip, wth=0, gap=10, mode)
	A clamp, bushing, and/or grip for wire/hose wall penetrations. More...

Detailed Description

Clamps, bushings, and grips for wires and hoses.

Requires:
include <omdl-base.scad>;
include <models/3d/fastener/screws.scad>;
include <parts/3d/enclosure/clamps.scad>;

Function Documentation

◆ clamp_cg()

module clamp_cg	(	size	,
		clamp	,
		cone	,
		grip	,
		wth	= `0`,
		gap	= `10`,
		mode
	)

A clamp, bushing, and/or grip for wire/hose wall penetrations.

Parameters

size	<decimal-list-2 \| decimal> wire size; a list [w, h] or a single decimal to set the wire diameter.
clamp	<datastruct \| integer> screw clamp; structured data or a single integer to set the clamp wall side {0\|1}.
cone	<datastruct \| integer> bushing cone; structured data or a single integer to set the cone wall side {0\|1}.
grip	<datastruct \| integer> zip tie grip; structured data or a single integer to set the grip wall side {0\|1}.
wth	<decimal> wall thickness.
gap	<decimal> wire/hose gap percentage.
mode	<integer> operation mode {0=hole, 1=part-a, 2=part-b, 3=parts-a and b}.

Construct a clamp, cone bushing, and/or a grip as a stand alone part or as a wall penetration hole finish that can secure or provide strain relief for passing wires and/or hoses. The penetration can be circular or rectangular dependent on the size specification.

Multi-value and structured parameters

clamp

Data structure fields: clamp

e	data type	default value	parameter description
0	<integer-list-2 \| integer>	required	wall side
1	<decimal>	wire height	base height
2	<datastruct \| decimal>	(see below)	screw bore
3	<decimal>	d*3	clamp depth
4	<decimal-list-2 \| decimal>	15	pinch bar size

clamp[0]: wall side

The clamp can be placed on either side of the wall by assigning 0 or 1. To place a clamp on both sides of the wall, assign the value list [0, 1].

clamp[2]: screw bore

e	data type	default value	parameter description
0	<decimal>	max(size)/4	`d` : bore diameter
1	<decimal>	base height	`l` : bore length
2	(see below)	[d*2, d/3, d/3]	`h` : screw head
3	(see below)	undef	`n` : screw nut
4	(see below)	undef	`s` : nut slot cutout

See screw_bore() for documentation of the data types for the screw bore parameters h, n, and s.

clamp[4]: pinch bar size

The pinch bar size, [h, w], is specified as a percentage of the penetration size height and the clamp depth. When a single decimal is specified, the height and width percentage are the same.

cone

e	data type	default value	parameter description
0	<integer-list-2 \| integer>	required	wall side
1	<decimal>	max(size)/2	cone base width
2	<decimal>	max(size)/3	cone height

cone[0]: wall side

The cone can be placed on either side of the wall by assigning 0 or 1. To place a cone on both sides of the wall, assign the value list [0, 1].

grip

e	data type	default value	parameter description
0	<integer-list-2 \| integer>	required	wall side
1	<decimal>	max(size)/2	zip tie width
2	<decimal>	max(size)/6	zip tie height
3	<decimal>	max(size)*3/7	grip base width
4	<decimal>	max(size)*3/2	grip height
5	<integer>	4	cut count
6	<decimal>	4/5	cut height fraction
7	<decimal>	min(size)/5	cut width
8	<decimal>	0	cut rotational offset

grip[0]: wall side

The grip can be placed on either side of the wall by assigning 0 or 1. To place a grip on both sides of the wall, assign the value list [0, 1].

Clamp example script

    include <omdl-base.scad>;
    include <models/3d/fastener/screws.scad>;
    include <parts/3d/enclosure/clamps.scad>;
 
    $fn = 36;
 
    d = 7.00;
 
    head = undef;
    nut  = [3.5, 1.5, 0, 4, 45, 1.25];
    slot = [undef, -3];
    bore = [3, undef, head, nut, slot];
 
    clamp_cg(size=d, clamp=[0, undef, bore], mode=3);
 
    // end_include

Clamp example diagram
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Cone example script

    include <omdl-base.scad>;
    include <models/3d/fastener/screws.scad>;
    include <parts/3d/enclosure/clamps.scad>;
 
    $fn = 36;
 
    w = 2;
    d = 7.00;
    difference()
    {
      translate(-[d*2,d*2,w/2]) cube([d*4,d*4,w]);
      clamp_cg(size=d, wth=w, mode=0);
    }
    clamp_cg(size=d, cone=[[0, 1]], mode=1);
 
    // end_include

Cone example diagram
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Grip example script

    include <omdl-base.scad>;
    include <models/3d/fastener/screws.scad>;
    include <parts/3d/enclosure/clamps.scad>;
 
    $fn = 36;
 
    w = 2;
    d = [7.00, 3.50];
    e = max(d);
    difference()
    {
      translate(-[e*2,e*2,w/2]) cube([e*4,e*4,w]);
      clamp_cg(size=d, wth=w, mode=0);
    }
    clamp_cg(size=d, grip=0, mode=1);
 
    // end_include

Grip example diagram
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Definition at line 742 of file clamps.scad.

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