## Knob Tutorial - Chosing the No. of detents to make

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SupDoc
Posts: 59
Joined: Sun Oct 27, 2019 12:05 am

### Knob Tutorial - Chosing the No. of detents to make

v0.18 Widows 10 64-bit.
I've done everything perfectly, in agreement with the tutorial. Here he creates two helping lines, starting as crossed. He touches the two lower red points on the ends of the line and the center point, as he does they each turn green, Then he grabs the right one with the pointer and pulls it to the center line when he does, the lines appear to snap to the center line, When I do this and use the angle tool to constrain the angle between to 360/24* = 15*, the two lines blow apart, obviously they didn't snap in his case they stay together and show a dimension of 15*.
If I can't get the lines to snap to the center line I will not be able to finish the tutorial. Can somebody please provide some help here?
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chrisb
Posts: 29066
Joined: Tue Mar 17, 2015 9:14 am

### Re: Knob Tutorial - Chosing the No. of detents to make

If you talk about a tutorial you should always give a link, if it's a video tutorial give the time position as well.

Your issue seems to be a missing coincident constraint. It is not enough to get somehow through a tuorial, you may have to go back and try to understand the reason why all these constraints are used and how they work. Video tutorials are not always the best choice, you may have a look at the Tutorials in the wiki. If you have learned the very basics about sketching, then this Sketcher tutorial may give you more explanations.
A Sketcher Lecture with in-depth information is available in English, auf deutsch, en français, en español.
SupDoc
Posts: 59
Joined: Sun Oct 27, 2019 12:05 am

### Re: Knob Tutorial - Chosing the No. of detents to make

Where is it? I clicked on the hyperlink and I got your starting remarks about the sketcher tutorial and lots of comments, but I couldn't find the Pdf you are talking about.
SupDoc
Posts: 59
Joined: Sun Oct 27, 2019 12:05 am

### Re: Knob Tutorial - Chosing the No. of detents to make

Here is the tutorial, hope that gets someone to respond with some useful advise: https://www.youtube.com/watch?v=H9qPMf3pxxo
chrisb
Posts: 29066
Joined: Tue Mar 17, 2015 9:14 am

### Re: Knob Tutorial - Chosing the No. of detents to make

SupDoc wrote:
Sat Nov 02, 2019 10:30 pm
Where is it? I clicked on the hyperlink and I got your starting remarks about the sketcher tutorial and lots of comments, but I couldn't find the Pdf you are talking about.
Sorry I gave you the link to the discussion about that tutorial. The link is at the end of the first post, and here it is again: https://owncloud.gwdg.de/index.php/s/HS ... I/download. Furthermore I have corrected the post above.
A Sketcher Lecture with in-depth information is available in English, auf deutsch, en français, en español.
chrisb
Posts: 29066
Joined: Tue Mar 17, 2015 9:14 am

### Re: Knob Tutorial - Chosing the No. of detents to make

SupDoc wrote:
Sat Nov 02, 2019 10:36 pm
Here is the tutorial, hope that gets someone to respond with some useful advise: https://www.youtube.com/watch?v=H9qPMf3pxxo
chrisb wrote:
Sat Nov 02, 2019 10:10 pm
if it's a video tutorial give the time position as well.
A Sketcher Lecture with in-depth information is available in English, auf deutsch, en français, en español.
Roy_043
Posts: 2081
Joined: Thu Dec 27, 2018 12:28 pm

### Re: Knob Tutorial - Chosing the No. of detents to make

Position: 15:30.

A coincident constraint (Sketcher ConstrainCoincident) is applied ("I put these two points on the origin"). In the tutorial the keyboard shortcut "C" is probably used.
HarryGeier
Posts: 1216
Joined: Mon Jul 10, 2017 12:36 pm
Location: Hof Germany

### Re: Knob Tutorial - Chosing the No. of detents to make

Roy, i look it up...i made that tutorial. I guess yu have some setting different which causes the behaviour.
Kaum macht man´s richtig , gehts´s
My Video Tutorials on Youtube: https://www.youtube.com/channel/UCoe3B ... p8Q/videos
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HarryGeier
Posts: 1216
Joined: Mon Jul 10, 2017 12:36 pm
Location: Hof Germany

### Re: Knob Tutorial - Chosing the No. of detents to make

I looked it up. There is a short piece of the video missing ( flaw in the cutting program ) .
Both points and the origin point are to be coincident.

What may have happend in your case : One of your lines snaps to vertical constraint when you put it on screen.
Kaum macht man´s richtig , gehts´s
My Video Tutorials on Youtube: https://www.youtube.com/channel/UCoe3B ... p8Q/videos
My FreeCAD Stuff on Hidrive: https://my.hidrive.com/share/qr3l1yddy6#\$/