Selecting the lines of a sketch to pocket.

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keshmaster81
Posts: 42
Joined: Fri May 12, 2023 4:14 am

Selecting the lines of a sketch to pocket.

Post by keshmaster81 »

I am trying to model the screw holes for this speaker:
Screenshot 2023-05-31 at 4.35.51 PM.png
Screenshot 2023-05-31 at 4.35.51 PM.png (613.56 KiB) Viewed 556 times
Screenshot 2023-05-31 at 4.35.57 PM.png
Screenshot 2023-05-31 at 4.35.57 PM.png (597.71 KiB) Viewed 556 times
Screenshot 2023-05-31 at 4.35.45 PM.png
Screenshot 2023-05-31 at 4.35.45 PM.png (897.4 KiB) Viewed 556 times
. The problem I am having is trying to pocket the larger hole down to the surface and the smaller hole all the way through.

Code: Select all

OS: macOS 10.16
Word size of FreeCAD: 64-bit
Version: 0.20.2.29603 (Git)
Build type: Release
Branch: (HEAD detached at 0.20.2)
Hash: 930dd9a76203a3260b1e6256c70c1c3cad8c5cb8
Python 3.10.8, Qt 5.15.4, Coin 4.0.0, Vtk 9.1.0, OCC 7.6.3
Locale: C/Default (C)
Installed mods: 
  * A2plus 0.4.60n
  * fasteners 0.4.56
  * lattice2 1.0.0
  * Curves 0.6.9
  * Assembly4 0.50.2
Attachments
Hydro-1100.FCStd
(19.78 KiB) Downloaded 10 times
Bance
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Joined: Wed Feb 11, 2015 3:00 pm
Location: London

Re: Selecting the lines of a sketch to pocket.

Post by Bance »

Use the hole tool it has a counterbore option.
chrisb
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Posts: 53920
Joined: Tue Mar 17, 2015 9:14 am

Re: Selecting the lines of a sketch to pocket.

Post by chrisb »

In case you want to do it manually: you need two sketches, one for the small holes going through all, one for the bigger counterbore with the appropriate depth. You can reuse your Sketch001 for the former and Sketch002 for the latter, where you have to remove the not used circles.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
frcaduser
Posts: 351
Joined: Wed Apr 07, 2021 11:22 pm

Re: Selecting the lines of a sketch to pocket.

Post by frcaduser »

Hello,

here is an example. Remember to select 'Reverse: true' for the pocket menu when the pocket is selected
in the Model sub-window properties.

Update: Please reference the attached tutorial on using the Polar Array tool from the Lattice2 workbench. If you're performing multiple
cuts from the same object, the Lattice2 workbench really comes in handy. What is great about the Polar Array tool is that you can define the number of array elements as well as their angular and physical distance from the center.

frcaduser
Attachments
Lattice2_WB_PolarArray_Tool.pdf
(120.83 KiB) Downloaded 7 times
lattice2_WB_PolaryArray_Tool.FCStd
(37.91 KiB) Downloaded 5 times
doubleCircularPocket.FCStd
(23.24 KiB) Downloaded 7 times
Last edited by frcaduser on Thu Jun 01, 2023 7:40 pm, edited 6 times in total.
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papyblaise
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Location: France

Re: Selecting the lines of a sketch to pocket.

Post by papyblaise »

I confirm the 2 answers above: Hole does not work with a non-flat or non-parallel base surface
Note that here, DatumPlan is useless for the 1st: you draw the sketch of the holes on the XY plane, and
for the counterbore also by modifying "Attachment at the right height
for my answer, I keep your 1st and its DatumPlan, I transform the 4 large diameters into construction lines (in blue) so as not to redo everything and Pocket "througt all"
and for the big ones, I make a carbon copy, swap the circles and move the bottom of the holes to the right place with "Attachment"
Attachments
Hydro-1100 PPB.FCStd
(144.43 KiB) Downloaded 12 times
Hydro-1100 PPB.JPG
Hydro-1100 PPB.JPG (14.89 KiB) Viewed 361 times
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Shalmeneser
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Re: Selecting the lines of a sketch to pocket.

Post by Shalmeneser »

:idea:
Attachments
ScrewHoles_SHALM.FCStd
(715.79 KiB) Downloaded 8 times
Capture d’écran 2023-06-01 184337.jpg
Capture d’écran 2023-06-01 184337.jpg (61.46 KiB) Viewed 299 times
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Shalmeneser
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Re: Selecting the lines of a sketch to pocket.

Post by Shalmeneser »

:idea:

The sketch for the hole can be far above the face.
Attachments
Hydro-1100_SHALM.FCStd
(89.43 KiB) Downloaded 8 times
Capture d’écran 2023-06-01 185027.jpg
Capture d’écran 2023-06-01 185027.jpg (28.79 KiB) Viewed 294 times
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