Draft analysis - Plastic Part Design

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Troppo
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Joined: Sat Oct 31, 2020 12:46 pm

Draft analysis - Plastic Part Design

Post by Troppo »

Hi
Can you help me please?
I need to make a draft analysis in a Plastic Part.
Freecad have this function or resource?
Reference aplication (resource) below:
Thanks a lot
Catia V5 Reference
https://blogs.rand.com/rand3d/2017/12/d ... ction.html

SolidWorks reference
https://help.solidworks.com/2020/englis ... erview.htm
https://www.goengineer.com/blog/solidwo ... t-analysis
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onekk
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Re: Draft analysis - Plastic Part Design

Post by onekk »

Troppo wrote: Tue Aug 30, 2022 10:55 am ...
Hello, welcome to the forum.

help us to help you.

Here we are all users, and there is no "payed people" to supply a "customer service" nor a "technical department" to ask for.

So please follow some hints: Regards

Carlo D.
GitHub page: https://github.com/onekk/freecad-doc.
- In deep articles on FreeCAD.
- Learning how to model with scripting.
- Various other stuffs.

Blog: https://okkmkblog.wordpress.com/
Syres
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Re: Draft analysis - Plastic Part Design

Post by Syres »

Troppo
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Re: Draft analysis - Plastic Part Design

Post by Troppo »

onekk wrote: Tue Aug 30, 2022 11:07 am
Troppo wrote: Tue Aug 30, 2022 10:55 am ...
Hello, welcome to the forum.

help us to help you.

Here we are all users, and there is no "payed people" to supply a "customer service" nor a "technical department" to ask for.

So please follow some hints: Regards

Carlo D.
Hello Mister onekk
I'm sure no one here is paid to help me...is basic information,but thanks for your atention
My demanding is for 0.20 release or any other.
Thanks a lot
Troppo
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Re: Draft analysis - Plastic Part Design

Post by Troppo »

Syres wrote: Tue Aug 30, 2022 11:18 am See https://wiki.freecadweb.org/PartDesign_Draft
Thanks a lot Syres
Have a commando to analise all part with color indicate what is the draft angle for face?
Another solution (like a macro) is OK for solute this issue?
Syres
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Re: Draft analysis - Plastic Part Design

Post by Syres »

Troppo wrote: Tue Aug 30, 2022 11:39 am Have a commando to analise all part with color indicate what is the draft angle for face?
Another solution (like a macro) is OK for solute this issue?
Sorry, all I did was search for what you asked for, I am not a fan of Part Design therefore I cannot help any further.
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onekk
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Re: Draft analysis - Plastic Part Design

Post by onekk »

Troppo wrote: Tue Aug 30, 2022 11:35 am Hello Mister onekk
I'm sure no one here is paid to help me...is basic information,but thanks for your atention
My demanding is for 0.20 release or any other.
Thanks a lot
It was only to point out a couple if things.

If you speak of Part and Draft in FreeCAD (FC for short) you will get the answer as the above.

Speaking about angles in 3d you are supposing that there is a zero plane from which your angle is measured.

To complicate things angles in 3d could be expressed using different conventions (intend angle as a measure of a 3d rotation)

In FC rotations and generally a Placement (try to search this term in FC wiki) are stored as quaternions and you could choose among a bunch of ways to expose them some if them not very friendly to read, some others more immediate. (You could maybe think of using Euler Angles but there are 24 ways to express a rotation using Euler Angles and I'm not an expert)

But angle could be measured using other plane as "origin" maybe an adjacent face.

Without other infos it is difficult to answer.

As "Draft analysis" seems to be a specific concept, what you intend for it?

I'm trying to be constructive.

Regards

Carlo D.
GitHub page: https://github.com/onekk/freecad-doc.
- In deep articles on FreeCAD.
- Learning how to model with scripting.
- Various other stuffs.

Blog: https://okkmkblog.wordpress.com/
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adrianinsaval
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Re: Draft analysis - Plastic Part Design

Post by adrianinsaval »

Syres wrote: Tue Aug 30, 2022 11:18 am See https://wiki.freecadweb.org/PartDesign_Draft
This is not what was being asked for, this tool is for creating a drafted object vs the request for draft analysis of an object.

I don't know of an existing tool to do this but it's probably possible to do in a macro.
Troppo
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Re: Draft analysis - Plastic Part Design

Post by Troppo »

onekk wrote: Tue Aug 30, 2022 12:40 pm
Troppo wrote: Tue Aug 30, 2022 11:35 am Hello Mister onekk
I'm sure no one here is paid to help me...is basic information,but thanks for your atention
My demanding is for 0.20 release or any other.
Thanks a lot
It was only to point out a couple if things.

If you speak of Part and Draft in FreeCAD (FC for short) you will get the answer as the above.

Speaking about angles in 3d you are supposing that there is a zero plane from which your angle is measured.

To complicate things angles in 3d could be expressed using different conventions (intend angle as a measure of a 3d rotation)

In FC rotations and generally a Placement (try to search this term in FC wiki) are stored as quaternions and you could choose among a bunch of ways to expose them some if them not very friendly to read, some others more immediate. (You could maybe think of using Euler Angles but there are 24 ways to express a rotation using Euler Angles and I'm not an expert)

But angle could be measured using other plane as "origin" maybe an adjacent face.

Without other infos it is difficult to answer.

As "Draft analysis" seems to be a specific concept, what you intend for it?

I'm trying to be constructive.

Regards

Carlo D.
Mister onnek grazie per l'aiuto
I try to find in help and forum but this issue never been worked
I designer for plastic parts and learning Freecad to translate the workflow for a freecad system platform.
The Plast Draft analisys is a very practical in design process...Below image about detailed practice.
I find in FreeCAD (allversion) about this resource but not found.
I put below a image about this issue
Grazie

Image
Attachments
draft.JPG
draft.JPG (83.34 KiB) Viewed 2285 times
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onekk
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Re: Draft analysis - Plastic Part Design

Post by onekk »

Troppo wrote: Tue Aug 30, 2022 2:23 pm
Ok now it is clear, what you are in need for.

Now it is clear that you are speaking of "molded parts" (plastica estrusa as I think you are Italian like me).

I doubt that something like this is actually available on FC.

As it is quite "specialized" and slightly beyond the "usual modelling tasks", as it involve some data analysis and extraction of geometrical data from the model, plus the organization of the computed data and a proper "visual report" using a graph and colorizing properly faces on the model.

I'm curious if this a usual thing supplied with stock version of the commercial CAD you have mentioned, or it is done using some specialized Addon?

IMHO it is not an easy task as it involve dealing also with the "Visualization Part" of FC, other than with surfaces, normals and such genre of things, but I'm not too skilled with this genre of things, I usually do "3d models" and I've done some "ad hoc" WorkBenches or less complicated programs for customers around the world.

I think that it will be a good challenge for some Macro creators and maybe now that the problem is explained someone will answer with some proposal.

Best Regards

Carlo D.
GitHub page: https://github.com/onekk/freecad-doc.
- In deep articles on FreeCAD.
- Learning how to model with scripting.
- Various other stuffs.

Blog: https://okkmkblog.wordpress.com/
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