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Dynamic Clearance Measurements

dgschaefer
21-Topaz II

Dynamic Clearance Measurements

WF4, M100



I need to determine the clearance between two parts as one pivots around
another. The parts are assembled with mechanism constraints and will
move properly. I'd love to see the clearance on screen in a note and
have it change dynamically as I pivot the parts.



Best I can tell, however, I need to create an analysis feature for each
measurement I want, then create an annotation feature and within that
create a note and then enter the secret gibberish code
(&dim:FID_feature-name) to extract the dimension from the analysis
feature and then place the note someplace.



Is that it, or is there an easier way that I'm missing?



Doug Schaefer

This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist.
--
Doug Schaefer | Experienced Mechanical Design Engineer
LinkedIn
6 REPLIES 6

create a simple part to part (or whatever to whatever) ANALYSIS FEATURE
that you are interested in, create the motion analysis (movement) in
Mechanism, then use the ANALYSIS- MOTION ANALYSIS ; selected the
appropriate mechanism analysis and analysis feature and it should dump
you right into MS EXCEL graphing out the analysis feature...

Thanks...

Paul Korenkiewicz
FEV, Inc.
4554 Glenmeade
Auburn Hills, MI., 48326

Well, what I thought I was going to do (described below) didn't work as
the annotation feature doesn't update dynamically.



Several have suggested a 'Motion Analysis' in mechanism. I switched to
mechanism mode and selected analysis -> mechanism. I stared at the
dialog that popped up for a bit. Couldn't figure out how do even start,
so I went back to simply positioning the assy so that it was visually at
the minimum distance and taking a measurement.



I wasn't looking for any sort of detail or a report in Excel, just a
simple number on screen that would update as I dragged the mechanism.
Seems like I did that before, but can't remember how.



Doug Schaefer
--
Doug Schaefer | Experienced Mechanical Design Engineer
LinkedIn
mjenkins
4-Participant
(To:dgschaefer)

I like to insert a point where you are concerned about the clearance.


Run the mechanism and then select: Insert> Trace Curve


The resulting curve can be used in a drawing to measure the clearance.

In Reply to Doug Schaefer:


WF4, M100



I need to determine the clearance between two parts as one pivots around
another. The parts are assembled with mechanism constraints and will
move properly. I'd love to see the clearance on screen in a note and
have it change dynamically as I pivot the parts.



Best I can tell, however, I need to create an analysis feature for each
measurement I want, then create an annotation feature and within that
create a note and then enter the secret gibberish code
(&dim:FID_feature-name) to extract the dimension from the analysis
feature and then place the note someplace.



Is that it, or is there an easier way that I'm missing?



Doug Schaefer
Senior Project Engineer, Mechanical
- <



Design Central
Columbus, Ohio

www.design-central.com http://www.design-central.com

614.890.0202



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Hello,

actually, that is not so difficult to accomplish.

Create a *saved *measurement (point to arc, part to part etc) that gives
you the desired distance and then switch to application/mechanism. If
you drag your parts, you will see that the saved measurement updates
dynamically. This is a fast and easy approach!

Hth

Vassilis Anagnostopoulos*
*
SPIDER SA
Industrial Area - Rodotopi
45500 - Ioannina
Greece

Hi,

Yes, I believe its good to make the measurement as a feature and save in model
tree.


I guess you directly insert a dimension (Insert-Annotations-Dimension) on the
model. It will be dynamically changing.

Thanks,
KS Jnanesha


No, this is what I mean



Vassilis Anagnostopoulos*
*
SPIDER SA
Industrial Area - Rodotopi
45500 - Ioannina
Greece
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