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Community Manager

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Post a question here by clicking on "Start a Topic" or send an email to community@ptc.com 

Best,

Toby

16 Comments
Level 6

Hello,

 

I am unable to find aPTC post with the following title online.

How to generate a best fit curve Z = aX^bY^c

 

I could not find it in on this website at all. Could you please send me the link to this post.

Community Manager

Hi @nanay001

Was this in PTC Community or ptc.com originally?

Thank you,

Toby

Level 6

This was posted in PTC Community.

Community Manager

 I will keep searching @nanay001 - is there any more information you can provide about the article and is that the complete title?

Thank you,

Toby

Level 20

I am not sure but I vaguely remember a post with a similar topic which was posted a few days before the migration from the Jive to the Lithium forum was done.

I think that about week of posts got lost in the process. In "Mathcad Questions" there is a gap between 22th of June and 29th of June and there sure were quite some posts inbetween which now are not showing up.

So chances are that your post is one of those missing posts. Not sure if @Tmetcalf will find a way to recover all those missing posts,

Community Champion

IF someone on the mathcad forum was getting email notification and still has those notifications, it's possible someone will have the post if it was from that infamous time frame. Provided the bulk of the post was text instead of images. Images only came across as a link, not as a visible image in the email.

Level 2

It looks like there is a problem with one of the links in the eSupport Portal.

 

Get help with the eSupport portal

 

It shows 404 page not found.

Level 8
Thanks, @geva. This is related to the redirect and we are currently working on it.
Level 4

Dear Tmetcalf,

three or four years ago i posted a question on ptcusercommunity.

The title was: Two wooden plank in a door frame.

There was a little discussion about the problem, ValeryOchkov answered.

Now i looked for the posts again, but I can´t find it in the new

community. Can you tell me, if the content is still online or if it is lost?

 

akolm

Level 20

> three or four years ago i posted a question on ptcusercommunity.

I guess I remember and Valery posted some animations like the ones attached here.

It must have been around June 2014 in the Mathcad forum.

I was also not able to find that thread

Looks like we lost more posts than just the one week where migration was done - its a shame :-(

 

BTW, when I look at you profile I don't see any contributions you did. looks like a fresh new account. Did you change yor account?

Can it be that your older account was deleted? But even if thats the case we should still be able to access the threads you created.

 

doorframe1.gif

Community Champion

It looks like it might have been uploaded as a video.  If so, none of the videos are available yet.  @Tmetcalf has to manually re-upload all of them.

 

google.PNG

Level 4

Dear WernerExinger,

The Answers habe been uploaded as a video!

the video you posted was exactely one the videos!

There was also another one yet!

Its true, i didn´t make any contributions to the answer

but my account is not a fresh one, its still the same as it was three years

ago!

 

 

Level 20

@

> If so, none of the videos are available yet.  @Tmetcalf has to manually re-upload all of them.

OMG! I would have expected that some PTC programmer would be able to write the necessary conversion script.

I also noticed that in my groups all video attachments are replaced by a dummy jpg. Maybe the same cause.

 

@akolm

If you need the videos and the Mathcad sheet, then open a new question in the Mathcad forum here so I can attach the files.

What I meant was not that you did not answer in that thread way back in 2014 but that your profile looks like you never posted anything in the forum in the past but obviously you did - after all you created that mising question, as you wrote.

Furthermore while the answer may have been created as videos in the Jive forum (as opposed to discussion, documents, ideas,..) the question sure wasn't and should be accessible as discussion, even though Valery might have created some videos and then posted in the question to link to them.

 

Since 2017 July, due to the change from Jive to lithium,

I can not enter the HP of PTC communication.

I'd like to post about technical issues, but I do not know how to do so, so I will post from here.

 

I am organizing experience technology. In particular, I would like to settle if I can solve what I was wondering. In the past, since I posted, there were two opinions. The point I wanted to claim here is that I wanted to insist that there are huge problems lurking among the things I believe are empirically correct. On this point, I reviewed and looked at specific examples. So, I would like to resume the discussion. I especially want to think about screws. Furthermore, I thought that I would like to participate in the discussion about analysis technology by # DCAD if possible. Therefore, I would like to attach my way of thinking as a report, is it possible?

 Kenzo Yamamoto

 

Community Manager

Good day @kenzoyamamoto

Would you please confirm - are you searching for a particular discussion or area of the community? 

I am happy to assist.

Thank you,

Toby

Dear  Toby

I am organizing experience technology. In particular, I would like to settle if I can solve what I was wondering. In the past, since I posted, there were two opinions. The point I wanted to claim here is that I wanted to insist that there are huge problems lurking among the things I believe are empirically correct. On this point, I reviewed and looked at specific examples. So, I would like to resume the discussion. I especially want to think about screws. Furthermore, I thought that I would like to participate in the discussion about analysis technology by 3 DCAD if possible.

  1. About 3 DCAD In 3D CAD, free design is possible. We recognize that it is a very convenient tool in the conceptual design of mechanical equipment and the like. Think about problems that arise in design work In general terms, in most product designs, there are cases where there is a preceding item or there is a competing product I guess that it will be work flowing empirically according to company rules etc. In some cases it may be a completely new product design, but this may be too unique. Estimate about the problem occurring here, At the time of designing, it is speculated that particularly important parts are contemplated, but there is a tendency to disregard the part not particularly problematic. That is, a problem arises with respect to the point that was being processed by an empirical intuition

 

"Estimated cause 1" Design materials are not necessarily regularly maintained. 1) Issues that the standard improvement cycle is too long, and further, problems that are likely to be solved on the field at first sight tend to leave it to the site. 2) Although there are individual parts standards in ISO standards etc., there are no standards or precautions concerning the composition when incorporated in products.

Estimated cause 2" In the design by 3DCAD, As for the mechanical one, design confirmation is possible for a considerable part by simulation such as a mechanism. However, no matter how high the functions of 3DCAD and CAE are, 1) If the skill of the user is not high, I think there is little reliability of the analysis result. In the case of 2) It is necessary to be able to judge the verification method of analysis. * Users of 3DCAD need to have a clear understanding of what they can and what they can not do.

 

2.Consider a concrete case It is impossible to analyze this seemingly simple mechanism It is a question of how to overcome this problem.

  1. A) Concluding of bolts and nuts In the CAE analysis of the bolt and nut fastened state, As a prerequisite for analysis, it is assumed that even if a dynamic external force is applied to the load, the screw does not loosen and the initial state is maintained. (Strength analysis by vibration load etc. can not be done)
  2. B) Rotational Power Transmission Shaft Joint In the case of a rotation mechanism, dynamic simulation can not be performed when there is misalignment. Therefore, it is an analysis of the rotation mechanism without misalignment. Human involvement is necessary in order to overcome the actual situation as a real problem. That is, an inference mechanism is set, and the model is analyzed. , (We will analyze the weakest part from the mechanism and find a model that fits the actual situation)

* The above problems will be explained in a separate sheet / attached document

  Kenzo  Yamamotoscrew_analisis_abridged_versionC_01 - コピー.pngscrew_analisis_abridged_versionC_02.pngscrew_analisis_abridged_versionC_03.pngscrew_analisis_abridged_versionC_04.pngscrew_analisis_abridged_versionC_05.pngscrew_analisis_abridged_versionC_06.pngscrew_analisis_abridged_versionC_07.pngscrew_analisis_abridged_versionC_08.png