Now that you are beginning to understand how the digitizer functions for taking off pipe, you are ready to begin taking off the Tutorial drawing. This exercise, Exercise #3, gives you an opportunity to use the most common items defined in a spec: Pipe, Fittings, Valves, Hangers, Flanges, Specialties, and Assemblies.
The Takeoff Screen is customized using the Spec for that Zone. Notice that the title of the Spec and Zone are in the upper left hand corner of the screen.
In Exercise #1, you practiced different ways to take off pipe; therefore, we are going to give you a great deal of flexibility on the tutorial takeoff. We will ask you to take off a run of pipe and it’s up to you to decide how you want to take it off.
Select the button next to Continuous. You will take off pipe in the Continuous mode for the tutorial.
Select the size of6″.
Click on touchpoints 1, 3, 4, and select Accept. (Skip touchpoint 2 because it wasn’t a break in the pipe run. If you touched it, the system would give you an incorrect count of joints.)
The system size is still 6″ so click90 Elbow(which is touchpoint 3) and selectAccept.
SelectReducing Tee. A pick list appears.
Select6×3. (You can do this by selecting 6×3 with the mouse cursor or click 3 on the digitizer template.)
ClickAccepton the digitizer template or touch the pen down on touchpoint 4 (which is the Reducing Tee on the blueprint). Press theAcceptbutton on the touchpen.
Select aReducer(the box next to the tee). This works the same way as the Reducing Tee.
ClickAcceptor click on touchpoint 4 (which is the Reducer on the blueprint). You are done with 6″ and now you need to move to 4″ size.
Move your pen to the 4″ and click down. Click on Pipe and click on 4, 5, and 6. SelectAccept.
We have a 4 foot vertical drop so click on Vertical Pipe. (Select vertical pipe any time you don’t want the system to generate hangers.)
Click on the4and selectAccept.
Click on90 Elbowthen touch points 5 and 6.
SelectAcceptwith the pen button or touchAccepton the touchmenu.
Now take off the branch lines.
Now you need a branch outlet. Branch outlets are located under the specialties palette.
Click ¾”, then click thread-o-let. You will get a list of available sizes.
Branch size shows first and pipe size is second. Select¾x6. SelectAccept.
Next, you need a ¾ nipple located directly above the thread-o-let. Click on thenipple. Select ¾x4. SelectAccept. This is touchpoint 2. Now you need a Dielectric Union.
SelectDielectric Unionand touch point 2 once. SelectAcceptwith the pen or on the template.
You need a 3″ Butterfly valve. ClickButterfly Valveand selectAccept.
Next you need a 3″ flange located on the Flange Palette.
When you click on the flange, notice the system is showing you that you are getting the gaskets and nuts and bolts as part of this flange.
Click on the Blind Flange and select Accept.
In addition to the items listed in the Takeoff list, other items are being generating automatically based upon the settings in the specification. When Pipe was being taken off, the following screen appeared showing you how often joints and hangers were being calculated.
In the Takeoff list, look at theJfollowing the pipe taken off. This indicates that AutoJoint is operable and the appropriate joints were taken off with this length of pipe. Also look at theHfollowing the pipe taken off. This indicates that AutoHanger (or AutoExcavation) is operable and the appropriate hangers components are being taken off with each length of pipe.
You are now done with Takeoff. Click theClosebutton.