Standard ANSI symbols for form and positional tolerance, material condition, etc. may be obtained by using one of the special control characters or numbers.
Control Character |
Symbol |
M |
Maximum material condition |
S |
Regardless of feature size |
P |
Projected tolerance zone |
O |
Diameter (where O is a capital letter). |
&1 |
Straightness |
&2 |
Flatness |
&3 |
Circularity |
&4 |
Cylindricity |
&5 |
Profile of Line |
&6 |
Profile of Surface |
&7 |
Angularity |
&8 |
Perpendicularity |
&9 |
Parallelism |
&10 |
True position |
&11 |
Concentricity |
&12 |
Symmetry |
&13 |
Circular runout |
&14 |
Rectangularity |
&15 |
Total runout |
( |
A left parenthesis 2 times the current character size. For reference dimensions, etc. |
) |
A right parenthesis 2 times the current character size. For reference dimensions, etc. |
+ |
A perpendicular divider with the size the same as the frame size of the form and positional tolerance symbol. |
<#aN> |
Quantity (where N is a number) |
<#b> |
Counterbore/Spotface |
<#c> |
Countersink |
<#d> |
Depth |
<#e> |
Conical taper |
<#f> |
Square |
<#g> |
Slope |
<O> |
Diameter (where O is a capital letter) |
S<O> |
Spherical diameter (where O is a capital letter) |
This example demonstrates the use of control characters to create drafting and dimensioning symbols.
&ENSITE=&TOPL
NOTE/-2.2, 1.5,$
'<M> <+> <P> <+> <N>',$
'<O> <+> <S>'
NOTE/-2.2, .8,$
'<&1> <+> <&2> <+> <N>',$
'< &3 > < + > < &4 >'
NOTE/-2.2, .1,$
'<&5> <+> <&6> <+> <N>',$
'<&7> <+> <&8>'
NOTE/-2.2, -.6,$
'<&9> <+> <&10> <+> <N>',$
'<&11> <+> <&12>'
NOTE/-2.2,-1.3,$
'<&13> <+> <&14> <+> <N>',$
'<(> <+> <)>'
Drafting Symbols and Characters Created by Control Characters