Simple model fails when try to make a pocket

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HDLA
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Simple model fails when try to make a pocket

Post by HDLA »

I am new in FreeCAD and use version 0.20.1
The problem is that when I try to create pocket the whole model fails.
I don't understand what I am doing wrong. I red about topological naming problem and decided to recreate the last sketches based
on datum planes but still have weird result. :(

Can you help me understand what I am doing wrong?
Attachments
test1.FCStd
(286.92 KiB) Downloaded 9 times
Screenshot 2022-12-03 194409.png
Screenshot 2022-12-03 194409.png (152.59 KiB) Viewed 560 times
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Roy_043
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Re: Simple model fails when try to make a pocket

Post by Roy_043 »

Try:
  1. Right-click the top node in the Tree view.
  2. Select "Mark to recompute".
  3. Call Std_Refresh.
This solves the issue for me.
Note that the last Pocket has to be adjusted: it does not produce holes.
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Shalmeneser
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Re: Simple model fails when try to make a pocket

Post by Shalmeneser »

There is a problem with the last pocket (Part_CheckGeometry) but a full recompute sanitize the file.

You do not need DatumPlane here. Why DatumPlane001 has no Map Mode ?
You should not sketch upon face. Same for DatumPlane.

Use only sketch upon XY-plane. (you do not need to stack material, you can add it through other material.)
HDLA
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Re: Simple model fails when try to make a pocket

Post by HDLA »

Thank you very much for your replays. :)
Recompute fixed the issue.
You should not sketch upon face. Same for DatumPlane.
I don't completely get this. If I want to make certain geometry on the of the object how can I do it without sketch over the top face?
Use only sketch upon XY-plane.
Is it possible to make Pad or Pocket with offset?

I know that maybe my questions are silly, but would like to have better understating of how the things are working.
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Shalmeneser
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Re: Simple model fails when try to make a pocket

Post by Shalmeneser »

Attachments
Capture d’écran 2022-12-03 200835.jpg
Capture d’écran 2022-12-03 200835.jpg (86.88 KiB) Viewed 481 times
Attach me_SHALM.FCStd
(18.4 KiB) Downloaded 6 times
HDLA
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Re: Simple model fails when try to make a pocket

Post by HDLA »

Thank you for the help!
Tutorial is really good also :D
drmacro
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Re: Simple model fails when try to make a pocket

Post by drmacro »

HDLA wrote: Sat Dec 03, 2022 11:27 pm ...
Since you are looking at attachment information. I'd be interested to hear your comments on this playlist about the subject.

https://www.youtube.com/playlist?list=P ... 8DxQMK8cDG
Star Trek II: The Wrath of Khan: Spock: "...His pattern indicates two-dimensional thinking."
Lonfor
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Re: Simple model fails when try to make a pocket

Post by Lonfor »

Shalmeneser wrote: Sat Dec 03, 2022 7:10 pm Basic_Attachment_Tutorial
drmacro wrote: Sat Dec 03, 2022 11:41 pm Since you are looking at attachment information. I'd be interested to hear your comments on this playlist about the subject.
https://www.youtube.com/playlist?list=P ... 8DxQMK8cDG
Since I only know the Flat Face method, I need that.
Reading, watching and learning now. Thanks.
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