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Index of Content
- Geometry
- Architecture
- Engineering
- Ladder
- Pylons
- Railing
- Bridge
- Tubes
- Tube Fork
- Tube Stopcock
- Chain
- Coil of Wire
- Torpedo
- Cruise Missile
- Rocket
- Wheel
- Truck
- Propeller
- Airplanes
- Canoe
- Guitar Body
- 7-Segment Display
- Ribbon Cable
- Cable Harness
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Pipeline Tube Stopcock
Objects: isosurface, cylinder, Hexagon, sphere.
Methods: #macro, #declare, #local, union, difference, #while.
uses: #include "shapes.inc" (a standard include file!)
macro "Tube_Fork_000"
#include "shapes_lo.inc"
A macro for a stopcock with wheel for pipeline tubes with flanges and nuts.
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Here at first all sizes and textures are leaved "undeclared" because they will
be declared in the final macro which puts all these things together!
R1 = main tube radius, R2 = side tube radius,
F_Add = width of flange over tube radius.
F_D = flange thickness,
FB_R = flange border radius,
First we build a flange similar to the flange
in the example Tubes
but this time as a macro with the variables of tube radius "Tube_Rad"
and the flange width "Flange_Add":
We do this because we have to adapt the flanges to tube ends with two different radi
R1 and R2.
#macro Flange ( Tube_Rad, Flange_Add )
... see scene file for details ...
#end //-------- end submacro ----------------- |
Now we build a cover for the tube end using the above macro:
#declare Side_Cover =
union{ // flange + cover plate
object{ Flange( R2, F_Add ) }
object{ Round_Cylinder(
<0,0,0>,<F_D/2,0,0>,R2+F_Add,FB_R,0)
texture{Flange_Texture_1}}
} // end of union ---------------------------- |
Now we need a stopcock wheel:
Wheel sizes: Wheel_Axis_Len = length of the axis
Wheel_Rmin and Wheel_Rmaj the to radi of the wheel.
#declare Wheel =
union{
// axis holder
object{ Round_Cylinder(
<-FB_R,0,0>,<Wheel_Axis_Len/2,0,0>,
2*Wheel_Rmin, FB_R, 0)
texture{Flange_Texture_1}}
object{ Round_Cylinder(
<-FB_R,0,0>,<Wheel_Axis_Len/5,0,0>,
2.5*Wheel_Rmin, FB_R, 0)
texture{Flange_Texture_1}}
// wheel + axis
union{ //2
cylinder{<0,0,0>,
<Wheel_Axis_Len,0,0>,
Wheel_Rmin}
union{ //3
torus{ Wheel_Rmaj, Wheel_Rmin
rotate<0,0,90> }
cylinder{<0,0,-Wheel_Rmaj>,
<0,0,Wheel_Rmaj>,
Wheel_Rmin*2/3 }
cylinder{<0,0,-Wheel_Rmaj>,
<0,0,Wheel_Rmaj>,
Wheel_Rmin*2/3 rotate<90,0,0>}
sphere{<0,0,0>,Wheel_Rmin*1.75
scale<0.67,1,1> }
scale<0.8,1,1>
translate<Wheel_Axis_Len,0,0>
} // uni3
texture{Wheel_Texture_1}
} // uni2
} // end of union ---------------------------- |
And last but not least we use my tube fork macro from
"Tube_Fork_000"
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A flange with nuts
A flange with tube end cover
A flange with tube end cover and stopcock wheel
The tube fork macro
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To complete this we use put all in a macro
here called Tube_Stopcock_000
Beside of the dimensions there are also installed some switches,
most of them are self-declaring!
object{
Tube_Stopcock_000(
0.50, // R1, // main tube radius: 1~0.25
0.35, // R2, // side tube radius: 1.5~0.20
0.05, // Tube_D, // tube material thickness
0.15, // Blobfactor; // 0.1~0.002 ; max0.20
0.05, // isosurface radius correction,
0, // Test_End_Cylinders_ON, 1=on, 0=off
0.14, // F_Add, // flanch radius add
0.05, // F_D, // flanch thickness
0.01, // FB_R, // Flanch_Border_Radius
1, // Nuts_ON, // 0 = no nuts but holes;
// 1 = nuts - no holes
0.085, // Nut_Scale, // ~0.035
12, // Number_of_Nuts, // ~ 16,
1,// Side_End_Cover_ON,
1,// Stopcock_wheel_ON,
20,// Stopcock_wheel_Rotation_Angle,
// wheel sitzes
0.05, // Wheel_Rmin,
0.45, // Wheel_Rmaj,
0.35, // Wheel_Axis_Len,
) // ------------------------------------
rotate <0,0,90>
} // ------------------------------------------ |
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The tube fork with flanges and side cover
rotated by "rotate <0,0,90>"
The tube fork with flanges and stopcock
rotated by "rotate <0,0,90>"
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For Download of this shape as a Ready-made POV-Ray object
in an
include file with macro
and for example files look at the
POV-Ray Objects Page - Tube_Stopcock
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