

 *********************************************************************
 **                                                                 **
 **      A u t o C A D   D e s i g n e r     R E L E A S E  1       **
 **                                                                 **
 *********************************************************************


This file contains information on late developments not 
included in the AutoCAD Designer Manual.


========================================================================



    CONTENTS
   ==========

        o  AutoCAD Designer Release 1 - An Overview

        o  General Application Notes

        o  Tips, Techniques, and Limitations

        o  Installation Hints and Integrating Other ADS Products

        o  Bonus Material

        o  Manual Corrections and Updates

        o  Known Problems

        o  Questions and Answers


========================================================================
AutoCAD Designer Release 1 - An overview
========================================================================

AutoCAD Designer is a parametric, feature based solid modeling tool that 
extends the capabilities of AutoCAD by automating the production of mech-
anical designs and drawings.


========================================================================
General Application Notes
========================================================================


o  Command Interface
AutoCAD Designer provides dialogue boxes as the primary user interface
for the application command set. A command line interface for entering
parameter values at the AutoCAD command prompt is unavailable. The 
AutoCAD system variable CMDDIA does not suppress the display of 
dialogue boxes.


o  Parametric Solutions
AutoCAD Designer will not solve some sketches. Most of these 
sketches require an iterative solution that AutoCAD Designer 
cannot provide. Use this simple rule of thumb to determine if 
your profile requires an iterative solution:  

Can you construct this shape, with these exact dimensions, 
using only a ruler and compass?

If you can't, AutoCAD Designer probably will not be able to 
solve it either.


o  Sketch Tolerance for Tangency
AutoCAD Designer doubles the value of ADSKANGTOL automatically 
when it applies the Tangent constraint. This means at the ASKANGTOL 
default value of 4 degrees, AutoCAD Designer actually applies a 
Tangent constraint if two items are within 8 degrees of being tangent. 


o  Dimensioning Between Sketches and Parts
When you dimension or constrain a sketch to the active part, pick the
part entities while you are in an isometric view. This reduces the risk 
of selecting isolines accidently.


o  ADASFCONV
When you convert an AutoCAD Designer solid part to an AutoSurf 
surface, AutoCAD Designer assigns the new geometry to the same 
LAYER attribute as the original part data. If the Keep Original option 
is enabled, your AutoCAD Designer part topology and the resultant 
AutoSurf surface boundary will coincide. To select your original part 
data, pick an outer edge. This helps to avoid selecting one of the new 
surface display lines.
 

o  ANSI/ISO Prototype Drawings
AutoCAD Designer provides two standard prototype drawing files,
ADESIGN.DWG and ADISO.DWG. ADESIGN.DWG is based on 
the ANSI standard. ADISO.DWG is partially based on the ISO 
standard. To change or retain one of these as your prototype 
drawing file, use the AutoCAD NEW command, enter the drawing 
file name in the Prototype edit box, and enable the Retain as Default
option.


o  Incorrect Parts Displaying in Drawing Views
When you use the Active option of the ADVIEW command to create drawing
views, parts that you create on new layers subsequent to the view
creation initially appear in the drawing views. AutoCAD Designer corrects
the display automatically when you update the part that is suppose to 
display in the views, or when you use ADEDITVIEW to change the Hidden Line 
Display option between calculating and not calculating hidden lines.

You can also use the following steps to correct the views:

1. Select the view you want to correct.
2. Enter the MSPACE command.
3. Enter the VPLayer command.
4. At the VPLAYER prompt, choose the Freeze option, 
   and enter the layer names for all new part layers.


o  AutoSurf View Configuration Commands
You should not use the AutoSurf view configuration commands, 
i.e. 3,4...dxy, with AutoCAD Designer while you are in Drawing mode. 
These viewing commands cause dimensioning display problems,
as well as loss of your current view.


o  Global Parameter Name Restrictions
Do not use dimension parameters, e.g. d0, d1, d2..., as global parameter 
names as they are used internally by AutoCAD Designer.


o  Freezing Layer (0) Zero
Do not freeze LAYER 0.  AutoCAD Designer uses this layer for placing
block insertions.  If this layer is frozen, any geometry creation
commands will result in the following error message displayed,
  "Application [path]/adesign.exp  ERROR: AutoCAD rejected function".


o  Drawing Annotation Layers
Do not place drawing annotation items on the same layer as AutoCAD Designer
Parts. These layers may be frozen by AutoCAD Designer the next time you 
enter a drawing command.


o  DXFIN
Prior to using DXFIN, unload AutoCAD Designer and open a new 
.dwg file. If AutoCAD Designer is loaded, it makes changes 
automatically to the .dwg file that cause DXFIN to assume the .dwg file 
is not new. Since DXFIN can only be done in a new file, the command 
fails.


o  TILEMODE, PSPACE, and MSPACE
Do not use TILEMODE, PSPACE, or MSPACE when you use AutoCAD Designer.
When you switch between Part and Drawing mode, AutoCAD Designer 
controls these variables, manipulates layers, and updates views. If you 
directly control TILEMODE, PSPACE, and MSPACE, AutoCAD Designer's 
part-to-drawing associativity may be invalidated.
 

========================================================================
Tips, Techniques, and Limitations

This section contains helpful hints about using AutoCAD Designer.
It is important that you read the information presented here before
you use the application.

========================================================================


o  Sketching Base Features
We recommend you sketch your base feature close to its final size. 
Otherwise, you may have to use small increments or decrements 
for each dimension to keep the constraint scheme valid. This can 
be tedious. 

Use either of the following methods to keep the base feature close 
to its final size: 

  -First sketch a rectangle, turn it into a profile, and 
   dimension its height and width. Modify the dimensions
   according to the height and width of the base feature's
   overall dimensions. Sketch the base feature inside of 
   the rectangle, and then delete the rectangle and its dimensions. 
  
  -Use the AutoCAD LIMITS command to set the limits to the
   overall size of the base feature. Then, before you sketch, 
   use the Extents option of the AutoCAD ZOOM command. 
   You can change the limits as the part grows. 


o  Centerlines on Drawings
Many drawings require centerlines. The work axes you create in Part 
mode do not transfer onto drawings, so you must place them yourself. 
The best way to do this is to draw the centerline on the view using 
AutoCAD. Use the ADANNOTE command to convert the centerline into an 
AutoCAD Designer Annotation item. 

When you place an Annotation item, it remains parametrically attached
to the point you pick in the view. The leader is not attached. Therefore,
when you pick an attachment for the centerline, pick an arc or circle
centerpoint, or pick a point whose location is not likely to change
with respect to the center line.


o  Selecting a Base View
There are two basic methods for orienting a base view on a drawing.

  -Parametrically. This is the best method to use if the base view 
   is for a detail drawing of an individual part. By choosing a parametric
   work plane or a planar face to orient a base view, you link the drawing
   view to the part. If you move the part with the AutoCAD MOVE command or 
   change a dimension that causes the planar face or work plane angle to 
   move, the view moves along with the part. You will always see the same 
   orientation of the part in that view!

  -Nonparametrically. This method is the best for a base view of an 
   assembly drawing. If you choose the UCS or a plane of the WCS, the view 
   orientation never changes, even if you move parts or change angles.


o  Multiple Drawings
AutoCAD Designer is not set up to automate multiple sheet drawings or 
multiple drawings. However, when you go into drawing mode, AutoCAD 
Designer simply switches to paperspace. Within paperspace, you may 
cluster as many groups of drawing views as you want just by panning 
in paperspace.  

When you create a base view, AutoCAD Designer lets you put all parts 
or the active part into the base view. If you select all parts, AutoCAD
Designer adds new parts to those drawing views as you create them in 
Part mode. All descendent views display the same part(s) as the parent 
view. In this way you can create a single assembly drawing and detail 
drawings of each part in the .DWG file.


o  Creating a Turned Part
When you create a revolved shape as your base feature, you often need a 
work plane that runs along the axis of the feature so that you can build 
additional features onto the part. The best way to create a work plane for 
this purpose is to create an On_UCS nonparametric work plane 
immediately after you use ADREVOLVE. (At this point, the UCS 
will still be on the sketch plane of your base feature.)

To use this technique if your base feature is a simple cylinder, create 
the cylinder with the ADREVOLVE command. Sketch a rectangle for a 
profile and use any of the lines as the axis of revolution. Create the 
On_UCS work plane immediately.


o  Selecting Geometry for a Sweep Profile
After you create a Sweep profile, the Sweep path geometry is still on 
the screen. It is easy to make the mistake of selecting the path geometry 
along with the profile geometry when you execute ADPROFILE. To avoid 
this problem, put the path geometry on a different layer and turn 
the layer off while you select the profile.


o  Radially Locating Notches
Many circular base plates and turned parts have notches cut into their 
perimeter. To parametrically control the location of these notches, 
follow these steps: 
  1. Create a Revolved base feature.
  2. Create a work plane along the axis of the base feature 
     with the ON UCS option. 
  3. Set the sketch plane for your notch. If the endcaps of the base     
     feature are planar and normal to the axis of the base feature, 
     place the sketch plane onto an endcap or parallel to one.  


o  Reducing Drawing File Size
After working with an AutoCAD Designer drawing file for several sessions,
the size of the file will continue to grow regardless if any new
geometry is added to your drawing.  This is due to retained unreferenced
blocks. To reduce your file to its minimal size, start AutoCAD
without initializing AutoCAD Designer, open the drawing to be purged
and execute the PURGE command and then QSAVE to save the updated drawing
back out.


o  Isolines
You can use the ADISOLINES command to control the number of isolines
that AutoCAD Designer uses when you display parts in wire frame 
representation. However, isolines are for display only.  
They do not represent true part edges, and cannot be used to pick parts, 
edges, vertices, surfaces or features.  

If you get error messages when you try to pick features, edges, or 
planar faces, you may be selecting an isoline by mistake. Try zooming 
in close to the edge you want, or use ADISOLINES to reduce the number 
of isolines.

Note: After you change the number of isolines, use the Wireframe,ON 
option of ADMESH to update the selected part.


o  Work Points
Dimension and constrain work points immediately after you create them.
Work points are similar to profiles and paths; they are sketches. 
They become inactive after you create another work point, path, or 
profile. Unlike a sketch, you cannot reactivate work points by using
ADWORKPNT again.


o  New Parts
You must initialize a new part with the ADNEWPART command before 
you create any features for it. If you don't, AutoCAD Designer
assumes you are still adding features to the active part.  

If you create a feature that disappears, you probably forgot to 
use ADNEWPART. AutoCAD Designer adds the feature onto your active 
part so if you sketched the feature away from the active part, 
no visible result occurs.


o  Silhouette Edges
AutoCAD Designer's hidden line processor may create silhouette edges 
for curved surfaces in drawing views. Silhouette edges are not valid input 
objects for the ADPARDIM command.


o  Dimensions between Profiles
You can have only one active sketch at a time, except when you create a 
path and a profile for a Sweep feature. If you have an active profile,
and you sketch another shape and turn it into a profile, AutoCAD
Designer considers the first profile to be ordinary AutoCAD geometry, 
not the active sketch.

You can't dimension the active sketch to anything but itself or the active 
part.


o  View Labels
The location of a drawing view label is restricted by the size of 
the drawing view. This means that your dimensions may overlap the 
view label. To fix this problem, remove the view label using ADEDITVIEW. 
Then create a new label with AutoCAD text and dimensioning commands 
and attach it to the view with ADANNOTE. You can freely move 
AutoCAD Designer Annotation items.


o  Chamfers
If you use the Two Distances or Distance x Angle options for ADCHAMFER, 
you can only select a single tangent continuous edge. The Equal Distance 
option lets you select an unlimited number of edges within a single 
execution of the ADCHAMFER command.


o  Drawing Views 
To create a drawing view of the back of a part, use one of the following
methods:

-Use ADVIEW to create a front view and then pull a top ortho view 
off of this view. Next, pull a top ortho view off of the top view. 
This gives you the back view. You can then use ADDELVIEW to delete 
the two intermediate views from your drawing. 

-Use the AutoCAD ROTATE command to rotate the part to
180 degrees in model space. 


o  Fractional Dimensions 
AutoCAD Designer commands incorrectly interpret fractional
dimension values as equations. To use fractional values on your
AutoCAD Designer drawing, use the AutoCAD UNITS command to set 
your units to fractional, but enter decimal values at all 
AutoCAD Designer prompts.


o  Automatic Save
The Automatic time saved mechanism of the AutoCAD TIME command does
not save AutoCAD Designer data. Do not use this method for saving 
drawings that contain AutoCAD Designer information.


o  ALIGN 
ALIGN is a special MOVE operation that can be used on AutoCAD 
Designer parts for transforming geometry. 


o  Grounding Sketches
AutoCAD Designer needs to ground each sketch to the X or Y axis.  If no
ground is established, AutoCAD Designer reports the sketch as under 
constrained with 1 missing dimension/constraint. Typically a sketch is 
grounded because a line in the profile boundary is parallel to the X or Y 
axis of the sketch plane. Other methods are as follows:
    o  Adding a construction line parallel to the X or Y axis and 
       dimension or constrain the sketch to the construction line.

    o  Dimension/constrain the sketch to a model edge, work plane or work
       axis that is parallel to the X or Y axis of the sketch plane.


o  Solid Parts to Surface Conversion   
The conversion process requires the use of approximations to map the
faces of an AutoCAD Designer part into AutoSurf Trimmed Surfaces. 
You can control the accuracy of the approximation with the Surface 
Trimming Tolerance setting, which appears in the Surface Conversion
Variables dialogue box. The default value is a general purpose, 
middle of the road setting. It provides good results and performance.


o  Mesh Tolerance Deviation Adjustment
When creating the mesh for a part, start with coarse tolerances. Move
to a finer tolerance if absolutely necessary. The tighter the deviation
between part surface and mesh elements, the greater the computational 
time and the larger the file size for the resultant model.


o  Adjusting Surface Trimming Tolerance
There may be times when the you want to change the tolerance value
--either when more or less accuracy is required, or when some faces fail
to convert (see the ADASFCONV section under Known Problems). Loosening 
the tolerance (a larger numeric value) causes the conversion to run
faster, but it may also have the side effect that some faces will not
convert because the specified inaccuracy produces inconsistent data. 
Tightening the tolerance (a smaller numeric value) causes the conversion
to run slower (possibly MUCH slower), and may cause faces to convert that
failed at a looser tolerance value. However, it may also have the side 
effect that other faces will not convert because the specified accuracy
cannot be obtained.

In general, when you want to change Surface Trimming Tolerance, you 
will want to tighten it (a smaller value) by only as much as you need to
get the job done. For example, if some faces in a part fail to convert, 
try the conversion again with a tolerance value of one half to one tenth
of the previous value. If some faces still fail to convert, tighten the 
tolerance again, but don't do this more than 2-3 times as the conversion
will become VERY slow and other faces may begin to fail to convert. There
will also be times when loosening (a larger value) the tolerance makes
sense. This will typically be when the part being converted is dimension-
ally very large and high precision is not necessary. Again loosen the 
tolerance only as much as needed to get the job done. For example, 
increase the tolerance value by two to ten times the previous value.


========================================================================
Installation Hints and Integrating Other ADS Products
========================================================================


o  Installation Notes

It is recommended that you install AutoCAD Designer in the AutoCAD product
directory tree. This allows AutoCAD Designer to be autoloaded along with
AutoCAD and any other ADS application. Installation in this manner will
not require any editing of your ACAD environment variable in order to find
your AutoCAD Designer application or support files.  

If AutoCAD Designer is installed in a separate directory tree, you will
need to edit the batch file that is used to set the ACAD environment
variable and add the root and support directory that was entered during
installation. The AutoCAD Designer path information must be at the front
of the list of directories for searching for AutoCAD files.  AutoCAD will
use the first file it finds while traversing the search path.

If \ACDBASE was entered as the root directory for installing AutoCAD Designer,
and \ACDBASE\SUPPORT was accepted as the directory for installing the support
files, then you would need to add to the start of the ACAD environment
variable,  
        set ACAD=\ACDBASE;\ACDBASE\SUPPORT; ...  { original path }

Note, however, if AutoCAD Designer is installed in its own directory tree
structure, a separate set of AutoCAD support files are installed.  These
files, ACAD.MNU, ACAD.MNL, ACAD.HLP and ACADR12.LSP, are needed in order
to autoload AutoCAD Designer when AutoCAD is executed.  If any other ADS
applications have been installed and configured to autoload along with 
AutoCAD through the AutoCAD support files, these applications will not be
found.  To correct this problem, you will need to merge the differences 
between the support files installed with Designer and the ones found in
the AutoCAD support directory.  You can copy the above listed support 
files into your Designer support directory and then update these support 
files by adding the Designer portions to them.  Consult the AutoCAD Designer
Installation Instructions on "Loading AutoCAD Designer" for more information 
on how to update these files. From within your Designer support directory:
           cat source\acd_only.mnu  acad.mnu > new.mnu
           copy new.mnu acad.mnu
           cat adesign.hlp                  >> acad.hlp
           cat source\acdr12.lsp            >> acadr12.lsp

The batch file that sets the ACAD variable should already contain the path
information for finding the other ADS applications, remember to add the
parth for AutoCAD Designer to the beginning os the path string.



o  Product Integration - AutoCAD Designer/AutoSurf/AutoVision 

AutoCAD Designer has included, as a bonus, a script for integrating together
AutoSurf Release 2, AutoVision Release 1 and AutoCAD Designer for use with
AutoCAD R12AS, or AutoCAD Designer and AutoVision for use with AutoCAD R12c2.

***   DO NOT run this script unless you are interested in integrating
***   AutoVision with your AutoCAD Designer and AutoCAD R12 products.

Use the AD_AS_AV script from within the support directory of the AutoCAD 
version that you intend to have these additional product autoload along
with AutoCAD. This script will actually fold these additional ADS 
applications into the same AutoCAD directory tree structure. This script
assumes that AutoVision was installed in the default directory AUTOVIS, if
this is not correct, edit the AD_AS_AV.bat file and update the AVIS_DIR
variable at the top of the file.  Also, if you installed AutoCAD Designer
in a stand alone directory, edit the ACD_DIR variable to reflect the correct
path.  Note, if Designer is in a seperate directory, you will still need to
run the AD_AS_AV script from the AutoCAD support directory where the 
integration is to occur.

This script should NOT be run more than once on the same AutoCAD support
directory, several AutoCAD support files are modified with appended infor-
mation and subsequent executions will append additional copies of the same
information which can cause abnormal loading of AutoCAD. For this reason, 
it is recommended that you backup your AutoCAD directory tree before 
running the integration script.  The ideal senario for running this script
would be a site that has AutoCAD R12AS or R12c2 loaded and operational,
next AutoCAD Designer is installed and placed in the SAME directory tree
that AutoCAD was installed.  Finally AutoVision is installed by accepting
the default installation paths.  Before running AD_AS_AV, you would be
able to preload AutoCAD Designer along with AutoCAD and AutoSurf but not
AutoVision. After running the script, all the above ADS applications are
preloaded along with AutoCAD.


========================================================================
Bonus Material
========================================================================


ADBONUS1.LSP

The following abbreviated commands are available by loading ADBONUS1.LSP
into AutoCAD. These are AutoCAD Designer specific 'short key' commands
that reduce the keystrokes required for issuing some of the more frequently 
used commands. Some bonus commands display a list of functions that you 
can perform on your AutoCAD Designer data.

To enable these commands, enter the following at the AutoCAD command 
prompt:
        (load "ADBONUS1")

   
Name     Description
--------------------------
ad     : Prompts for operation to perform on PARTS.
adf    : Prompts for operation to perform on FEATURES.
adw    : Prompts for operation to perform on WORK PLANES.
adp    : Short for ADPROFILE command. Creates a sketch.
ada    : Short for ADPARDIM command. Adds dimensions.
adc    : Short for ADMODDIM command. Changes dimensions.
adm    : Short for ADMODE command. Flips viewing mode.
add    : Short for ADDIMDSP command. Displays dimensions.
adco   : Short for ADSHOWCON command. Prompted to Display, Add or Remove.
adv    : Short for ADPARTVIEW command. Prompted for type or view.
   

ADBONUS2.LSP

The following abbreviated commands are available after you load ADBONUS2.LSP
into AutoCAD. These are generic view configuration and orientation commands
that you can use within any AutoCAD application. These bonus commands are
included specifically for use with the AutoSurf Release 2 surfacing application. 
These 'short key' commands reduce the keystrokes required for creating and 
manipulating your AutoCAD views and viewports.

To enable these commands, enter the following at the AutoCAD command 
prompt:
        (load "ADBONUS2")


Name     Description
--------------------------
pln    : View of the XY plane with all the data fit in the view.
dxy    : View of the XY plane with all the data fit in the view.
dxz    : View of the XZ plane with all the data fit in the view.
dyz    : View of the YZ plane with all the data fit in the view.
frt    : Front view, the XZ plane with all the data fit to the view.
rt     : Right view, the YZ plane with all the data fit to the view.
i      : Isometric view, 45 degree from above with data fit to the view.
f      : Fits all data to the view.
favp   : Fits all data in all viewports.
uv     : Sets the current UCS to the current view.
uw     : Sets the current UCS to the WCS.
zp     : Restores the previously saved zoom view.
up     : Restores the previously saved UCS values.
wp     : Sets the current ELEVATION value, WorkPlane simulation.
b      : Zoom in using the interactive window as the boundary.
1      : Uses a single (1) viewport.
2      : Creates 2 viewports, aligned left and right.
3      : Creates 3 viewports, aligned, 2 on the left, 1 on the right.
4      : Creates 4 equal viewports, each with a different view.
5      : View of the XY plane with all the data fit in the view.
6      : View of the XZ plane with all the data fit in the view.
7      : View of the YZ plane with all the data fit in the view.
8      : Isometric view, 45 degree from above with data fit to the view.
depth  : Sets the UCS origin depth/elevation point.
plpts  : Reports number of points for a selected polyline.
xl     : Xloads an ADS application.
xun    : Xunloads an ADS application.


========================================================================
MANUAL CORRECTIONS AND ADDITIONS

This section contains information on late developments
not included in the printed AutoCAD Designer Manual.

========================================================================

========================
Chapter 2 - Tutorial
========================
Due to the nature of Sketching geometry, and the new paradigm 
of AutoCAD Designer whereby you sketch a profile, constrain it,
then create features from it, figures that appear in this chapter 
may not always match those on your screen.


Lesson 4
========
"Constraining the Sketch"

In step 1, page 71, the directions for the ADSHOWCON
command are incorrect. After you choose the All option,
do not exit from the command until you do the comparison
described on the following page. Otherwise, if you exit
from the command, the constraints will not appear on
the screen.

-"Editing the Sketch"

In step 1, page 77, the cross reference to figure 2-54 
is incorrect. Use the pick points in figure 2-53.

In step 1, page 77, the directions for the last prompt
are incorrect. The directions to exit ADMODDIM should be 
replaced with the following:

    Select Dimension to change:  Pick P4
    New value for Dimension <current>: 0.56
    Select Dimension to change: Press return to exit.


-"Creating the Solid Feature"

In step 1, page 79, the directions for ADEXTRUDE are 
incorrect. The following prompt is missing
     
     "Direction Flip/<Accept>:"

Choose the Accept option.

-"Modifying Dimensions of a Feature"

In step 3, page 86, you should save the file in the 
tutorial directory so you will find it easily for use in 
the next tutorial lesson.   Step 3 should read:

  3. "Save your changes as pipe_1.dwg in the tutorial
        directory."

   Command: saveas
   Directories: Change the directory so the file
      is saved in the tutorial directory.
   File: pipe_1.
 
Lesson 5
========
-"Getting Started"

In step 5, page 88, figure 2-66 appears with the front view 
of the part already displayed.   This figure should just show
the point, P1, where the resulting view is to be placed.

-"Moving Dimensions on the Drawing"

In step 1, page 94, when asked to select view to place dimension, 
you should pick the center of the front view on your screen 
instead of pressing <cr> as instructed.   The line should read:

      "Select view to place dimension: Pick in the center of the 
      front view."

-"Moving Dimensions Between Views"

In step 6, page 97, you should save the file in the 
tutorial directory so you will find it easily for use in 
the next tutorial lesson.   Step 6 should read:

  6. "Save your changes as pipe_2.dwg in the tutorial directory."

   Command: saveas
   Directories: Change the directory so the file
      is saved in the tutorial directory.
   File: pipe_2.

Lesson 6
========
-"Creating a Cut in the Base Feature"

Step 5, page 112. Do not perform this step. The fillets 
you add in this step cause a legitimate regeneration failure 
in a later step, preventing you from completing the lesson.
Instead, proceed to the next step.

The failure occurs because the edges upon which you place 
the fillets will be deleted by the dimensional change from 
.11 to .3.  

========================
Chapter 4 - Commands
========================

-"ADADDCON"

On pages 130-131, the following additional information further 
describes the operation of each subcommand of the ADDADDCON
command.

Hor--This option prompts you to select the line to which you 
want the constraint applied.

Ver--This option prompts you to select the line to which you 
want the constraint applied.

PErp--Select the line to which you want another line to be 
perpendicular, and then select the line to be perpendicular.

PAr--Select the two lines you want parallel.

Tan--This option prompts you to select the entities to which 
you want the constraint applied. 

CL--Select the two lines you want colinear.

CN--Select the two Arcs or Circles to which you want the 
constraint applied.

PRoj--Select the endpoint of a Line or Arc to project, and 
then select the Line to project it to. To select an Arc or 
Circle centerpoint instead of an endpoint, use the Center 
mode of the AutoCAD OSNAP command before you select the Arc 
or Circle. Then select the Line to project it to.

Join--Select the endpoint of one Line or Arc to join and
another Arc or Line endpoint.

XValue--Select two circles to which you want the option 
applied.

YValue--Select two circles to which you want the option 
applied.

Radius-- Select the Arcs and Circles you want to have 
equal radii.


-"ADSWEEP"

The information for ADSWEEP on page 178 and the options
described on page 179 should be replaced with the following:

ADSWEEP creates a solid feature defined by a planar cross 
section (profile) swept along a planar trajectory (path). You 
must create two sketches for a solid Sweep feature.

     Command: adsweep
     Select sweep path: Select an entity in the path sketch.
     Select sweep cross section profile: Select an entity in 
       the profile sketch.
     Parallel/<Normal>: Enter an option.

<Normal>--Creates a solid Sweep with a profile normal to the 
sweep path. This option lets you specify a draft angle if both 
the path and profile contain only lines and polylines (no arcs 
or circles), and the path is perpendicular to the profile. 

     Draft angle (positive tapers out) <0>: Enter a positive 
        or negative number. 

A negative value creates a negative draft. The default value 
of 0 creates no taper.
     
Parallel--Creates a solid Sweep maintaining the profile
parallel to the profile sketch plane.

After you choose Parallel or Normal, if the Sweep feature you are
creating is for a new feature of the existing part, AutoCAD Designer 
prompts you with the following:

      Cut/Join/<Intersect>: Enter an option.

Cut--Removes material from the active part.

Join--Adds material to the active part.

Intersect--Creates a new feature from the shared volume of 
the existing part and the Sweep feature.

=============================
Appendix A - System Variables
=============================

-"ADSETTINGS"

On page 196, the option in the dialogue box for setting
the dimension highlight display color is not part of this
version of the product.


========================================================================
Known Problems
========================================================================

o  AutoCAD Designer Authorization
If you cancel out of the authorization configuration for AutoCAD Designer,
you will exit AutoCAD completely and return to the DOS command prompt.
Prior to running AutoCAD Designer, you must obtain a valid authorization
code from Autodesk.


o  ADASFCONV
Occasionally, some faces in a AutoCAD Designer part will not convert 
to an AutoSurf Trimmed Surface. When this occurs, the ADASFCONV
command prints the following message:
        Part m: n face(s) not converted.

Where m is the part number assigned to the body by AutoCAD Designer,
and n is the number of faces in that body that failed to convert.

Adjusting the Surface Trimming Tolerance may cause the conversion to
complete successfully (see the Surface Trimming Tolerance section under
Tips, Techniques, and Limitations).


o  Surface Flow Line Display Trimming
There are times when the AutoCAD Designer display of the AutoSurf Trimmed
Surfaces will not look exact. Flow lines may extend a small amount beyond
or end short of the trim boundaries and/or may not be evenly spaced. This
is caused by trying to duplicate the AutoSurf display data with the ACIS 
modeler. The ACIS modeler uses a different technique for calculating flow
lines. In all known cases, the AutoSurf command DISPSF corrects the 
display. Specifying a loose tolerance for the conversion often causes
flow lines to extend a small amount beyond or ending short of the trim 
boundaries.
   

o  AutoCAD Commands 
The following AutoCAD commands may produce unexpected results when 
you use them on AutoCAD Designer data:

  -ERASE: Use the ERASE command to delete AutoCAD Designer parts. 
   Do not use ERASE to delete AutoCAD Designer features or drawing 
   entities. Do not use ERASE to remove work planes, work axes, or 
   work points. Doing so causes these entity types to disappear 
   until you use ADWORKPLN.

  -COPY: You can use the COPY command on AutoCAD Designer parts and 
   profiles/paths. However, an AutoCAD copy of an AutoCAD Designer part 
   results in a static base feature (identical to objects created 
   with ADMAKEBASE). A copy of a profile does not include profile 
   constraint information.

   Do not use the AutoCAD SCALE or MIRROR commands when you use COPY 
   on AutoCAD Designer parts. Doing so results in invalid objects 
   that are deleted as soon as you execute any AutoCAD Designer
   command.

  -MIRROR: Do not use the MIRROR command on AutoCAD Designer parts. 
   Doing so results in invalid objects that are deleted as soon as you 
   execute any AutoCAD Designer command. You may use MIRROR on 
   profiles/paths, but no AutoCAD Designer data will be mirrored.

  -SCALE: Do not use the SCALE command on AutoCAD Designer parts. 
   Doing so results in invalid objects that are deleted as soon as you 
   execute any AutoCAD Designer command.  

  -EXPLODE: Do not use EXPLODE on AutoCAD Designer parts. Exploding 
   an AutoCAD Designer part results in complete loss of AutoCAD Designer's 
   database.

  -ARRAY: You can use the ARRAY command on AutoCAD Designer parts and 
   profiles/paths. However, using ARRAY on an AutoCAD Designer part 
   results in a static base feature (identical to objects created 
   with ADMAKEBASE). An array of a profile does not include profile 
   constraint information.

   Do not use the AutoCAD SCALE or MIRROR commands when you use 
   ARRAY on AutoCAD Designer parts. Doing so results in invalid  
   objects that are deleted as soon as you execute any AutoCAD Designer
   command.


o  Miscellaneous Commands
Many AutoCAD commands are not applicable to AutoCAD Designer Parts, 
but are often used on profiles or paths. These commands include BREAK, 
OFFSET, DIVIDE, STRETCH, EXTEND, and TRIM. These commands invalidate 
the profile or path, so you must recreate it with ADPATH or ADPROFILE 
after using any of these commands.  


o  Section Symbol Display
Setting ADPROJTYPE to First Angle (0) will still use the ANSI standard
representation when displaying section symbols.  The section views 
are created correctly according to the ISO standard; however, the arrow
placement is ANSI style.


o  AUDIT Command
If you run the AUDIT command while you are in a drawing that contains 
AutoCAD Designer data, you will encounter some errors due to the extended 
entity data required by AutoCAD Designer.


o  ADSWEEP and Draft Angle
AutoCAD Designer has limited capabilities for applying draft angles to 
Sweep features. You cannot apply draft when you use the Parallel to 
Sketch option for ADSWEEP. When you use the Normal to Path option, 
AutoCAD Designer has difficulty applying draft if the sweep path or 
profile contains arcs or circles. 


o  Circular Sweep Paths
AutoCAD Designer does not create a valid Sweep feature if the 
path is a full circle. Instead, use ADREVOLVE to build this 
type of feature.


o  Ellipses
Do not use ellipses in AutoCAD Designer sketches. AutoCAD ellipses 
are not true analytical ellipses. They are a series of very small 
arcs that are typically too numerous for AutoCAD Designer to 
constrain properly.  

You can use ellipses in a limited fashion. Turn off Sketch mode in the 
Utilities dialog box prior to using ADPROFILE and do not attempt to 
dimension the ellipse. If you continue to encounter problems, turn off 
Rule mode in the Utilities dialog box as well.


o  Upside Down Sketch Dimensions
Sometimes sketch dimensions appear upside down on the screen.
When you define the sketch plane, you set the AutoCAD UCS. AutoCAD 
Designer dimensions created with ADPARDIM display on the XY 
plane of the UCS. If you rotated your view of the part, your 
dimensions appear upside down.


o  System Crashes
In the unlikely event you crash the AutoCAD Designer application, 
DO NOT save your drawing file. Respond NO at the prompt "AutoCAD 
cannot continue... Do you want to save your changes?". This corrupts
your drawing file so that recovery is not possible.  


o  Removing Unneeded Highlighting
Sometimes you may need to use the AutoCAD REGEN command to 
turn off the highlighting left on the screen by AutoCAD Designer.

   
o  Invalid Input/Output Drive
Selecting an invalid drive or a drive that is not available for input
and output causes a termination of both your AutoCAD Designer session and
AutoCAD and returns you to the DOS prompt. Depending on your video display 
configuration, you may need to reset your video display by entering the
following at the DOS command prompt:   
         mode co80


========================================================================
