on
2012-08-21
04:38 PM
- edited on
2023-05-09
02:20 PM
by
Emoke Csikos
1. Draw the circle or arc of the Spiral.
2. Decide on the resolution of the arc of the Spiral. Consider the size and full length of the arc. In our case let us create a full circle out of 32 segments. Let us draw the segments for the arc/circle.
3. Draw an inclined Beam segment along the circumference of the arc/circle between two division points.
4.Go to the 3D Window and increase the inclination of the Beam so it is the desired value. For example, if the total inclination of the Spiral is 4800 millimeters, then one segment will incline 150 millimeters.
Hint: You might want to set your Working Unit to the highest possible value for best accuracy during input.5. Go back to the Floor Plan, select the Beam segment and use the Multiply command with the Rotate option. The vertical displacement should be the inclination of one segment since we want the segments to join properly in the Z direction.
6. Go to the 3D Window to see the result.
7. Notice one thing however: if you zoom in very close to a point where to Beam segments join you will see that the join is not perfect. For them to be perfect the Beam would have to have the ability to have a distorted section, which it does not.
So this is a limitation therefore you should set the resolution to a large enough value so these errors are within tolerance.1. Go to the Object Settings Dialog and using the search functions find the Curved Ramp object in the ARCHICAD Library.
2. Make sure the “Side Flange 1” and Side Flange 2” parameters are turned OFF.
3. Under the Ramp parameter group there are some parameters we need to set. Let us set “5800” (millimeters) for the “Smaller radius” parameter and “200” for the “Full width” parameter. Let us set “360” for the “Angle” parameter so it goes a full circle.
4. Set the Ascent Length value to the full z value the Beam inclines. In our example this is “4800” millimeters. Also set the “Thickness” parameter which is “200” millimeters.
5. You may want to play around with the 2D Representation parameters since it will display information related to the Ramp you might not need. You can, for example, decrease the size of the Text parameters to “0.0001” (practically invisible) and set the Text and Arrow pens to a white color.
6. Click OK to accept these changes, then click the center of the circle to place the Ramp. Then delete the circle as it is not needed anymore.
7. Check out the result in 3D.