Exercise 2 Adding and Positioning Components
5.1 General
From the main bar menu select:
Position > Branch > General.
The Branch at General Position form appears together with an axis in the graphical view,
On the Branch at General Position form, select Head or Tail, as required. Then set the At pull down menu to define how you will specify the required position.
In the example below, we have selected the Head At ID P-Point, press Apply.
Use the CE button if you want to move the Head / Tail of another branch before dismissing the form.5.2
Distance
From the pull down menu select Position > Branch > Distance, the Position form appears together with an axis in the graphical view.
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On the Position form, select Head or Tail, asrequired. Then key in the Distance required. The positioning options are shown on the two pull down menus.
On the second pull down, the options are as follows: Cursor ID Cursor ID P-Point PH of ID Branch PT of ID Branch Coordinate Name Pin A cursor-identified 3D position A cursor-identified item whose origin is at the required position A cursor-identified p- point at the required position
The head of another branch (which you will pick with the cursor) The tail of another branch (which you will pick with the cursor) An explicit position whose coordinates you will enter
A named item whose origin is at the required position
A numbered construction pin at the required position
In this example we have selected Distance 500mm Behind ID P-Point, press Apply.
Use the CE button if you want to move the head/tail of another branch before dismissing the form.5.3
Through
From the pull down menu select Position > Branch > Through
On the Position form, select Head or Tail, as required. Then set the Through option to the point with which the Head / Tail is to be aligned. In this example we have selected Head Through ID P-Point, press Apply.
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5.4
Move
Move allows you to move the Head / Tail in a given direction by a given Distance, Through a given point, or to within a given Clearance of another item.
5.4.1 Distance
From the pull down menu select Position > Branch > Move > Distance
On the Position form, select Head or Tail, as required, enter the Required Direction and Distance of the move, then press Apply.
In this example we have selected Head, Direction S, Distance 750mm.
Use the CE button if you want to move the head/tail of another branch before dismissing the form.5.4.2 Through
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On the Move Branch Through form, select Head or Tail, as required. Then set the Direction and finally set the Through pull down to show how you will specify the point with which the Head / Tail is to be aligned.In this example we have selected Head, Direction N, Through ID P-Point, press Apply.
Use the CE button if you want to move the Head / Tail of another branch before dismissing the form.5.4.3 Clearance
From the pull down menu select Position > Branch > Move > Clearance
On the Move Branch Clearance form, select Head or Tail, enter the Direction and Clearance distance required. Pull down menu options are similar to those used in the previous examples.
Select Head, Direction S, Clearance 250 Behind ID P-Point, press Apply.
5.5
Drag
Drag allows you to move a constrained network in a given direction by a given Distance, Through a given point, or to within a given Clearance of another item
A constrained network is a collection of cable tray components, equipment and nozzles formed automatically during a Drag operation. The Drag action moves all items in the constrained network as a group, retaining their relative positions and connectivity.
The network comprises all items connected to the current element in all directions up to a legal end point. A legal end may be any of the following:
FTUBE which can be extended or shortened parallel to the move direction A nozzle
A point between misaligned components
A point between incompatibly-connected components A component which has not been positioned and orientated An element which you do not have access rights to move
5.5.1 Distance
Distance drags the branch Head / Tail, together with other connected components, equipment and nozzles within a constrained network, by a given distance in a given direction.
From the pull down menu select Position > Branch > Drag > Distance
On the Drag,Move Branch Distance form, select Head or Tail, as required, and enter the Direction and Distance for the drag. Press Apply
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A confirm form now appears, asking if the branch should Return to Original Position, press No5.5.2 Through
Allows you to drag a constrained network, along a specified direction until it is aligned with a specified point From the pull down menu select Position > Branch > Drag > Through.
On the Drag Move Branch Through form, select Head or Tail. Specify the Direction and select the Through pull down menu as appropriate.
In this example we have selected Head, Direction N, Through ID P-Point, press Apply. The confirm form appears as before, press No
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5.5.3 Clearance
Allows you to drag a constrained network along a specified direction until it is a given clearance from a specified point.
From the pull down menu select Position > Branch > Drag > Clearance.
On the Drag Move Branch Clearance form, select Head or Tail, enter the Direction and Clearance distance required.
Pull down options are similar to those used previously.
Select Head, Direction S, Clearance 250mm Behind ID P-Point, press Apply.
6
Fixed Length Trays and Implied Straights
Implied straights in Cabletrays can be compared with implied tubing for piping. Implied straights occur where there is a physical distance between consecutive list order components. Implied straights can be replaced by fixed length tray (FTUB) elements.
6.1
Replacing Implied Straights with Fixed-Length Trays
To add fixed-length tray (FTUB) elements to all or part of the current branch so as to replace implied straights, select Modify > Fill.
The Fill Cable Tray Branch form appears. Set the Fill pull down to specify which part of the branch is to have fixed- length trays inserted. The options are:
Branch .
Components
Head to Component
Component to Tail
replaces all implied straights with fixed-length trays for the entire branch.
inserts fixed-length trays between two specified components.
inserts fixed-length trays between a specified component and the branch head.
inserts fixed-length trays between a specified component and the branch tail.
The fixed-length trays used are derived from the current branch specification. The number of trays used in each location is calculated from the length of the implied straight which they replace.
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