Close vertices of an arc crossing with a circle in a sketch

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matbak00
Posts: 2
Joined: Wed Jun 16, 2021 7:53 pm

Close vertices of an arc crossing with a circle in a sketch

Post by matbak00 »

I'm trying to model a VESA mount, but I'm having trouble connecting some vertices of arcs crossing circles, see the red squares in the following image. I found out that I had open vertices by using the 'validate sketch' function.
open vertices.png
open vertices.png (5.43 KiB) Viewed 362 times
I have tried and retried to constrain the arc in different ways hoping that the vertices close, but nothing worked. I have tried using the point on an object constrained, making a point on the intersection between the circle and the construction line and than using the coincident restraint to tie the end of the arc to that point and I tried to make the 'Close Shape' tool work. I tried finding the solution on the forum and I found similar problems, but none of those solutions worked for me. Does anyone have any idea how I can solve this?
closeup of sketch.png
closeup of sketch.png (8.15 KiB) Viewed 362 times
OS: Windows 10 Version 2009
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.24291 (Git)
Build type: Release
Branch: releases/FreeCAD-0-19
Hash: 7b5e18a0759de778b74d3a5c17eba9cb815035ac
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.0
Locale: English/United States (en_US)
Attachments
Vesa mount.FCStd
(10 KiB) Downloaded 10 times
chrisb
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Posts: 54305
Joined: Tue Mar 17, 2015 9:14 am

Re: Close vertices of an arc crossing with a circle in a sketch

Post by chrisb »

Hi and welcome to the forum!

If you want to pad the sketch it must not have any crossings or T-joins. This is an example that pads:
Attachments
SnipScreenshot-eba344.png
SnipScreenshot-eba344.png (36.46 KiB) Viewed 356 times
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matbak00
Posts: 2
Joined: Wed Jun 16, 2021 7:53 pm

Re: Close vertices of an arc crossing with a circle in a sketch

Post by matbak00 »

Well now that I think about it that makes a lot of sense, thanks!
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