Well the problem is my slot is the Primary datum in my control frame for another profile. The slot itself has a profile tolerance without control frame that constrains size and form only. I have another surface profile on a free form feature of size constrained to datum A (the slot) @MMB. This means My datum feature allows pattern shift as the surface of the slot deviates from the MMC condition as defined by the best fit profile tolerance. Additionally if I use the slot feature i loose the degrees of freedom controlled by the axis of my slot AND the feature is not being evalueated 3 dimensionally.
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#2
Inspector / Creating a Slot feature
February 17, 2014, 09:56:46 AM
Hello,
Brand new user here. I have a lot of experience with other inspection platforms though so hopefully I will be able to pick this up quickly :)
I have a slot feature - ID 2 Cylinders and to planes that I need to create as a datum feature for other evaluation. I have tried the feature creation tool in the tool bar menu as well as the interactive option from the measure menu. Neither successfully gives me a slot feature that I can identify as Datum A.
Any direction on what I might be doing wrong?
Thanks,
Coleman
Brand new user here. I have a lot of experience with other inspection platforms though so hopefully I will be able to pick this up quickly :)
I have a slot feature - ID 2 Cylinders and to planes that I need to create as a datum feature for other evaluation. I have tried the feature creation tool in the tool bar menu as well as the interactive option from the measure menu. Neither successfully gives me a slot feature that I can identify as Datum A.
Any direction on what I might be doing wrong?
Thanks,
Coleman
#3
General Discussion / Re: Why Polyworks?
April 10, 2012, 09:41:43 AM
Well,
The parts will always be similar... There is a parametric design for various sizes within a family of parts. After that there will be a couple of walls that are custom sculpted to each individual application for a unique fit. There will be a profile requirement of the sculpted surface back to the datum scheme which is standard.
My thinking was that i should be able to set up some parameters that would define an envolope the sculpted surface would fall in. Laser scan the part. Export the point cloud and fit it to the model with the datum targets. At this point it should be a simple process of comparing nominal vs. actual.
This is a simplistic view of the application, but not overly so...
The parts will always be similar... There is a parametric design for various sizes within a family of parts. After that there will be a couple of walls that are custom sculpted to each individual application for a unique fit. There will be a profile requirement of the sculpted surface back to the datum scheme which is standard.
My thinking was that i should be able to set up some parameters that would define an envolope the sculpted surface would fall in. Laser scan the part. Export the point cloud and fit it to the model with the datum targets. At this point it should be a simple process of comparing nominal vs. actual.
This is a simplistic view of the application, but not overly so...
#4
General Discussion / Re: Why Polyworks?
April 05, 2012, 04:40:16 AM
Thanks for the reply!
Where can I learn more about the DirectReplay function? It sounds like this is the direction I should be looking at, but the last thing I want to do is invest and then find out it can't quite do what I need.
Part of the challange is that I need to make the process turn key. With limited instruction (and possibly a lot of Macro programing...) I need to be able to have an operator load a part and push the run button - and let the software make a determiniation as to good or bad.
How long does it take to become proficient with Polyworks. I am a little concerned with the proposition of spending weeks trying to understand why my lines of scripting don't work the way I thought they would?
Where can I learn more about the DirectReplay function? It sounds like this is the direction I should be looking at, but the last thing I want to do is invest and then find out it can't quite do what I need.
Part of the challange is that I need to make the process turn key. With limited instruction (and possibly a lot of Macro programing...) I need to be able to have an operator load a part and push the run button - and let the software make a determiniation as to good or bad.
How long does it take to become proficient with Polyworks. I am a little concerned with the proposition of spending weeks trying to understand why my lines of scripting don't work the way I thought they would?
#5
General Discussion / Why Polyworks?
April 04, 2012, 11:44:54 AM
Hi All,
I am a CMM programmer trying to learn more about the workd of high density point clouds. I have My eye on an LDI laser scanner that is retrofitted on to a bridge CMM. My understanding is that I will need to export the point cloud into something more capable for evaluation rather than traditional CMM software.
I have a unique application where each part will have a unique design so no two parts are ever going to be the same - though they will usually be similar. My thought is to have the parts scanned by the LDI Laser to gather comprehensive data and than evaluate the data in comparison to a provided nominal model and have the ability to incorporate the GD&T requirements of the print.
I have a couple of questions:
1) Why Polyworks. What sets this platform above the rest and why should I invest my time effort money and resources into Polyworks above its competitors? Is it the best choice for my application?
2) Does anyone have any experience with LDI? Can you give me any reasons why I would or would not want to partner with them for my laser scanning application?
3) Can I believe an reportes acuracy of 0.009mm with laser technolog or is this a sales brouchure that is over exagerating the capability of the equipment?
Thanks,
Coleman
I am a CMM programmer trying to learn more about the workd of high density point clouds. I have My eye on an LDI laser scanner that is retrofitted on to a bridge CMM. My understanding is that I will need to export the point cloud into something more capable for evaluation rather than traditional CMM software.
I have a unique application where each part will have a unique design so no two parts are ever going to be the same - though they will usually be similar. My thought is to have the parts scanned by the LDI Laser to gather comprehensive data and than evaluate the data in comparison to a provided nominal model and have the ability to incorporate the GD&T requirements of the print.
I have a couple of questions:
1) Why Polyworks. What sets this platform above the rest and why should I invest my time effort money and resources into Polyworks above its competitors? Is it the best choice for my application?
2) Does anyone have any experience with LDI? Can you give me any reasons why I would or would not want to partner with them for my laser scanning application?
3) Can I believe an reportes acuracy of 0.009mm with laser technolog or is this a sales brouchure that is over exagerating the capability of the equipment?
Thanks,
Coleman
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