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The FEDA AutoCAD Layering System


The world is different today. Five years ago, CAD was only being used by very few companies in our industry. The exceptions were manufacturers using CAD-CAM to aid in their manufacturing processes. And a few forward thinking consultants using CAD.

Four years ago, FEDA announced selection of a system to put our industry into step with the electronic age. It revolved around the selection of personal computers, PC's as we all refer to them. NAFEM recognized the coming to CAD and was eager to satisfy FEDA's request for equipment libraries.

The difficult part was the selection of a library system that would be cost effective to manufacturers who would bear the cost involved. PC's were the perfect answer. They combined flexibility with low cost.

The second major decision was the selection of AutoCAD as the software. This software has continued to grow in scope and expand in capabilities. It is now sold in over 60 countries around the globe. It sponsors "Expos" on four continents, the U.S., Europe, Australia and Japan. Through their Autodesk Educational Sales Group, it has established a high profile in educating new people in the use of AutoCAD. Adding to the pool of persons knowledgeable in the operation of CAD is a primary importance to the growth of all industries using CAD. Currently AutoDesk, Inc. lists over 100 industries that are utilizing AutoCAD.

Of those 100 plus industries, our foodservice industry stands alone. We are the only industry to create, establish and successfully implement layering standards. The FEDA layering system has been adopted by our European counterparts due to its success here.

As simple as the idea seems, no other industry has been able to replicate our success. John Walker, one of the founders of AutoCAD and a driving force behind its success, explained to the author last year, that "no other industry has succeeded in establishing a layering standard."

The FEDA AutoCAD Layering System is what this article is really about. We are once again, reprinting the system for your use and retention.

Please cut it out or duplicate it on your copy machine, but save it. It is a valuable reference tool. A copy should be posted on the wall at each CAD workstation. It is simple and easily committed to memory, but having a hard copy readily visible is essential for new employees. It also makes it easy when you are explaining CAD to other interested persons, especially your clients.

One thing is sure. That is the value of CAD in your client's eyes. CAD is impressive. The consultant, dealer or factory who proudly demonstrates it to a client proclaims a loud and clear message. We are progressive. We are willing to invest in technology that helps us do the very best job for you, our client.

The layering standard worked out four years ago is just as relevant today as it was then.

It was set up with basic categories of information we all use at increments of 100. By that I mean: The 100 layer is for building walls, The 200 layer is equipment outline, The 300 layer is electrical, The 400 layer is plumbing, The 500 layer is ventilation, The 600 layer is building works, The 700 layer is for notes and schedules.

In between these are 99 other layers. Some of these we have used to assign additional detail. The 201 layer which is used to identify detail below the 36" typical working level is a good example. The 350 layer typically use by manufacturers to locate actual electric connections on their equipment is another.

That leaves hundreds of layers open and unused. Any user can select and use one or more of these open layers should he wish to add specific information he wishes to keep separate. Remember that you the user can select what layers are printed on your plotter.

Other Guidelines:

LTSCALE sct of 10.

Plotting Notes:

When plotting, the following layers are not plotted on the final drawings, they are for reference only; Layers 204, 205, 350, 450, 550.

Additional Layers:

Unlimited layers are available, as you may need them. For example layers 101 thru 199 are open to use, as well as any others specifically not assigned

Elements of the FEDA-Recommended Layering System

There are 18 recommended layers, in 7 colors, in 7 linetypes, and suggested linetype sale. No recommended line widths are given. Some of these layers contain valuable information that aids in the layout and engineering work but does not get plotted in the final drawings.

FEDA AutoCAD Layering System, continued:

Layer  Description and Comments  Display Color  Linetype  Plot Color 
100  WALL LINE

This area is for building outline 
White  Continuous  Black 
200  BASIC GEOMETRY

The lines drawn to show equipment on a plan or elevation 
Yellow  Continuous  Black 
201  UNDER COUNTER LEVEL

The lines of equipment that have a height below 36" 
Yellow  Hidden  Black 
202  ABOVE EQUIPMENT LEVEL

The lines of equipment that have a height above 36" 
Yellow  Phantom  Black 
204  ADDITIONAL DETAIL

Added detail that the manufacturer would like to show, i.e., door swings, compressors on refrigerators, etc. 
Red Continuous  
205  CENTER LINE

Places that require a center line on a drawing. 
Red  Dashed   
206  CLEARANCE OUTLINE

This is provided to show whatever clearance is needed around a piece of equipment that the manufacturer recommends (offset from walls, distance from walls, distance from other equipment, etc.) 
Red  Continuous   
250  FRONT VIEW

Use this layer for front view with elevation drawing. 
Yellow  Continuous  Black 
260  LEFT-SIDE VIEW

Use this layer for left-side view with elevation drawing 
Yellow  Continuous  Black 
270  RIGHT-SIDE VIEW

Use this layer for right-side view with elevation drawing. 
Yellow  Continuous  Black 
300  ROUGH IN ELECTRICAL

Rough in symbols on electrical plan, 
Green  Continuous   
350  ACTUAL ELECTRICAL

Actual Electrical connections of equipment are to be shown on this layer along with any electrical attribute information that is needed 
Green  Continuous   
400  ROUGH IN PLUMBING

Rough in symbols on plumbing plan 
Magenta  Continuous   
450  ACTUAL PLUMBING

Actual plumbing connections on equipment are to be shown on this layer along with any plumbic attribute information that is needed, 
Magenta  Continuous   
500  ROUGH IN VENTILATION

Rough in symbols on ventilation plan 
Blue  Continuous   
550  ACTUAL VENTILATION

Actual ventilation connections on equipment to be shown on this layer along with any ventilation attribute information that is needed. 
Blue  Continuous   
600  BUILDING WORKS

Any underground or overhead PVC (soda lines, etc.) 
Magenta  Continuous   
700  NOTES AND SCHEDULES

Any detail notes or schedules on drawing (equipment schedules, etc.) 
Yellow  Continuous