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Hi Tudor...sorry for the late response. It sounds like you did everything right...If you still have issues with it, could you post a shareable link to an image that illustrates the issue? This can be done via google drive.

@@GerardAlcini Thanks for answering! I will try making a screenshot (I could not "fix" that particular issue) to illustrate what I'm talking about - within a couple of days at max.

Hi There. In V5 it is CATIA ICEM Shape design but you also need the IEX (ICEM SHAPE DESIGN EXPERT 2) license.

@@GerardAlcini thanks for replying

Hi Roy (?), 100 percent correct. CATIA 3DEXPERIENCE has all the creative design and class "A" solutions needed to do the job...and they're all using the same data in a true digital thread.

Hi Fardin, there is a way to force the constraints to "always" update by opening the dialog and turning on the auto-update icon but I do NOT recommend this setting. That's because if you have multiple matching constraints applied and make a change to one of them, it can have a globally devastating affect on the others, making it difficult to pick up the pieces. They are working as designed to give the user full control. So in a situation where you apply a match but it turns another one "red", check to see if you have diffusion turned on...this may be the cause because its deliberately forcing a change all along the surface. So your choices are 1) turn this option off, which means the diffusion will only affect the rows specified by your continuity input or 2) leave on, then RMB on the "red" constraint and do a local update. There is no right or wrong setting, I use them both depending on the situation.

@@GerardAlcini thank you Mr Alcini for sharing your knowledge.it is helpful.

Hi Fardin...a little late with my reply, sorry. If you need to protect the tangent condition to an adjacent surface, and the control points are "noisy", then perhaps the adjacent surface is the actual culprit. I suggest imposing a matching constraint of the surface that you want to clean up to the neighboring patch, then modify those control points (of the neighboring patch). Impose a graphic "dress-up" on the patch that is being matched so you can see the control points when modifying the driving surface....I hope that makes sense!

@@GerardAlcini Thanks so much Mr Alcini, I appreciate your answer.

Hi Ben, make sure that you do not have "Keep Original" turned on in the app options window. This will duplicate the curve or surface, thus no referenced geometry will be driven from this duplication.

@@GerardAlcini Thank you very much for your help ：）

Hi Jordi, The values for the honeycomb is defined in the sketch. This overview does not go into details in this area but if you need a better understanding of CATIA Sketches, there are plenty of videos that explain them well.

Thank you, Jordi...will try doing a matching constraint video when time permits.

Hi Jose, Sorry....late reply. There are myriad things that can cause the issue. If you copy and paste a feature, it may be possible that you have to look at the parent entities, making sure that the new feature will build properly. Things such as fillet values, direction of both surfaces for a the fillet, the approximation settings need to be tight as well. If nothing resolves the issue, try to remove the trim option to see if it builds and work the bugs out from there.

@@GerardAlcini Thank you Gerard, I'm on it.

Thanks, will do!

thanks Francois! Hope you are having a good summer!

thank you Aleks!

Hi Fardin, try using Surfacic Curvature Analysis, then select the limited radius option. Type in the a nominal value, say 5mm and set the color scale to your liking, then select all the geometry you wish to analyze and can see what radii are above and below your input value and you can use an option below in the dialog box called "on the fly", mousing over any area of concern to get a dynamic feedback of the radius and/or curvature value. Hope this helps

@@GerardAlcini Thanks so much Mr Alcini, I tried it and I don't find it to work for my case, it is good for the curved areas but where there is for example two popped features in a part that the distance between them are less than the tool diameter the endmill will not be able to go between them and this analysis don't give a result because it is for curved areas.

@@fardin5059 Fardin, what CAM software are you using? Many of them have a feature called REST (REmainingSTock) machining that will clean up remaining stock from larger tools...have you investigated if this feature exists? Otherwise, the only trick that I can think of trying is to try an edge fillet for the entire part and continually decrease the value until you have your answer. Head Impact Anaylsis would probably work...but I know that you don't have this license... :(

@@GerardAlcini Thank you Mr Alcini, I am not the machinist guy but I know the machinist uses Powermill which have the REST-machining capability and he REST-machine the part and finds a spot which the tool does not enter and sends the model back to me to modify, my goal is to stop this back and forth between modeler and machinist and send the model in a way that makes sure it will not be sent back, I thought a tool like Thickness-analysis may exist to do what I expect and lack of such a tool really is strange to me. Thank you for your answer.

Noted!

Hi Fardin...Matching constraints can increase the order of a surface, whether its a single segment Bezier or multi-segment NURBS but cannot add segmentation (patches). In complex fillets, there's no reason not to increase the orders to 10 or 11 on a Bezier patch (use your discernment). The important thing is to make sure the surface remains smooth and without inflections.

@@GerardAlciniHi Mr Alcini. I hear that some very top CAD speakers from Alias don't tend to go beyond 7 or 8 control points for A class work, is this because of the CAD system they use or they have different work flow? Thank you so much.

Hi...actually, I totally forgot that it was added to Freestyle a couple releases back, so YES...and thanks for reminding me.

@@GerardAlcini Is there a similar fonction in 3DX also?

@@fddesign Yes! everything shown here is in 3DEXPERIENCE.

@@GerardAlcini I try to find it in Freestyle but it seems to be unavailable

@@fddesign First thing to check is that "Generic tools" is turned on. To verify; RMB over any of the commands to bring up the list of various toolbars.The license needed is FSS. If you have FS1, not sure if its included. Also, it was added in version V5_6R2018- earlier versions will not have it.

My pleasure!

Hi Pete, sorry for the really late reply. You may want to start with a lower tolerance first- loosen the tolerance and use less surface details...also make sure that you do not choose the Regular Stream Lines.

@@GerardAlcini no worries it eventually did a brilliant job and I’ve since done some other reconstructions with really good results. Again many thanks for a great vid. Really got me off the mark.

follow the link in the first video. You can download all the data

​@@GerardAlcini hi thanks for your great videos. I wanted to download the files but the link you shared is not working. Is it possible to share the links again?

Hi Khalil, I do not believe there is SubDivision technology available in NX but I could be wrong. There are some other tools such as Modo, Maya, Rhino, Blender and Fusion 360 but they do not have a fully integrated suite like CATIA that produces actual NURBS surfaces + Boolean operators.

Hi Hamed...its all available for download. Follow the Google Drive link in the first video under the description.

1. i think the number of the Vertices is not very strict, is based on the complicity of the contour. the Hood is relative complicated, so use 5 vertices, and the tailgate is simple, so...

Hi Kiran...sorry about the really late response...This is all available in CATIA Imagine and Shape...all releases since...well a long time ago. You will need the CATIMA license. Best Regards, Gerard

@@GerardAlcini Thank you brother 😊

Hi Fester...do you mean importing an obj into IMA? Yes, I will but it's pretty straight forward. If you have, say an OBJ from Maya or Modo, the import mechanism is directly available in IMA application (3dx) and workbench (v5).

Blender obj should be fine too.

Hi Gerard, thanx for your answer. I was trying to import an OBJ file (Maya or Cinema 4D). As you said, the import mechanism works. But after importing an OBJ there is not one single subdivision but a lot (more than 20). So I always need to combine those 20 subdivision surfaces to one. Is there an other way where I can get 1 sub?

Thank you Ellesse...will try to come up with some material for you soon

i think you must select not only one point at one time. The point you selected will change to highline.

@Pablo Quispe did you find anything to solve the merging surfaces issue? I have the same problem.

@@alejandrobanda3976 I installed catia V5-R26 and it works well. In R21 doesn´t work to me. Nice tutorial!

@@pquispea that´s exactly what i did yesterday hahah actually i´m following this tutorial, thanks for the answer!