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beyoungjr
en respuesta a: Dan.Scales

Hi Dan,

I appreciate you chiming in on this.  The point you illustrate is as old as AutoCAD itself and has nothing to do with the problem I'm trying to address.  Your point validly addresses the case of a smaller circle affecting the center mark size of a diameter or radius dimension, as well as the lame centermark command.  If the circle/arc is too small for the indicated size of the centermark the line portions are simply omitted (very predicable and expected).

 

In my example (PLEASE download the drawing I initially uploaded) you will see that an arc or circle that is scaled up via the Viewbase command (or even the viewport scale method) results in lame centermark that WILL NOT insert per the scaled view.  The diameter or radius dimension is the only way of getting the proper centermark, and we do not place redundant hole dimensions for the same sizes.  Instead we should be placing centermarks that can be cleanly dimensioned to. 

 

I have been back & forth with a German on my subscription support case for a few weeks.  He keeps directing me to use the diametric dimension for every hole and I keep stating that it is not proper practice.  My last email requested that he explain how to properly dimension a bolt-circle on a non-full-scale base view.  The circles should all have centermarks but they should be oriented properly and I shouldn't have to place 8 diameter dims for 8 holes.

 

I've been drafting since 1980 and using ACAD since 1985 (5-1/4 floppies w/o hard drives... the days).  We try to avoid redundant dimensioning at all costs.

 

The German tells me this is an enhancement request and I replied... No Kidding!  Viewbase command was an enhancement and dimensining needs to behave accordingly.  I suppose the next suggestion will be to create a center mark block that I can insert with scale.  So then the centermark size (gap spaces) will sacle as well and no proportinality will be mainatined.

 

I'm sure this will require work by Autodesk but why not create a simple "Dynamic Centermark" that behaves exactly like the one included in the diameter and radius dimensions, and maybe even allows orientation (angular) upon placement?  This new feature could also permit users to remove individual "extension legs" as desired for partial arc dimensioning (we turn the centermark off for the dimeter dim now and adda lame centermark for this where we can delete a leg).

 

I have submitted this on the wish list and bug list but I would really love to hear that Autodesk is truly considering it.  Maybe I need to get on the Beta Testers list but I really don't have time to devote to that.

 

Thanks again for chiming in,

Blaine

 


Blaine Young
Senior Engineering Technician, US Army