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Model Knurled Knob in FreeCAD | FreeCAD Tutorial | FreeCAD Part Design | FreeCAD Part |
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Jul 2, 2025
#FreeCAD #FreeCADtutorial #FreeCADPartDesign In this Tutorial I have Explain How to Model Knurled Knob in FreeCAD. ▶️ Visit my website for more info on FreeCAD-: https://mechnexus.com/ ▶️ Get my FreeCAD Crash Course for beginner-: https://www.udemy.com/course/freecad-course-for-beginner/?referralCode=3BA9B526A12F96295D44 ▶️ Download Source File of this Tutorial https://mechnexus.com/mechnexus-youtube-tutorial-source-file/ ▶️ Buy Me a Coffee I am very grateful that you watch my videos and I am constantly trying to improve the quality of the videos on this channel. If you'd like to help me do this, please consider supporting me so that I can to continue to produce content for your enjoyment. 👉 Help support this channel by buying me a coffee: https://ko-fi.com/mechnexus All donations will be used to purchase equipment to improve my productivity and increase the quality of the content that I produce. Your kind support will help to grow this channel. Even if it's just enough to buy me a coffee every little helps and this will be repaid in full through my sharing of knowledge. ▶️ Disclaimer & Copyright
View Video Transcript
0:00
Hello friends welcome to Free cat
0:02
tutorial and in this tutorial we will
0:04
learn how to model this null knob in
0:09
free Cad and I will show you from the
0:11
scratch how you can do the same in a
0:13
free card and in this tutorial we will
0:16
learn the Boolean operations added two
0:19
Pi features of a free card we will use
0:22
these features and we will model this
0:24
null knob in freecad so let's start I
0:29
will close it and I will show you from
0:31
the scratch
0:34
so I will switch to the part design
0:36
workbench
0:38
and
0:40
I will
0:41
create a new file and I will create a
0:44
body and then I will create a sketch and
0:47
I will select this XY plane
0:51
and I will draw a circle of 20
0:57
and I will give it a diameter of 20.
1:03
and I will close it
1:06
and I will give the pad height of 10 mm
1:10
and I will close it I will select this
1:12
Edge
1:13
and go to the fillet and I will give
1:16
fillet of R2
1:22
and then from the bottom side
1:27
I will select this face and I will
1:29
create a sketch
1:33
and I will draw a circle and
1:37
give it a
1:39
diameter of 14
1:50
and I will close my sketch
1:53
and I will cut it to the 9mm
1:58
and I will say okay
2:03
and then I will select this inner face
2:07
of my part and I will create a sketch
2:12
and I will draw a two Circle here
2:19
and I will give it a dimension
2:22
I will give it a diameter of it
2:27
and inside one
2:30
I will give diameter
2:34
6.1
2:39
and I will close it
2:47
and then I will give it a pad height
2:51
so before the pad height I will again
2:54
edit my sketch
2:56
and I will cut it
3:01
I will so
3:04
line here
3:06
and I will make it vertical
3:09
I will also make it vertical
3:13
and then give a dimension of 1 mm
3:17
I will select this and this
3:20
and give dimension of 1 mm
3:24
and from this to this I will give
3:28
0.5
3:30
and then I will go for the stream
3:33
options and I will trim this
3:36
Arc
3:39
now our sketch is fully constrained so I
3:42
will close it
3:46
and then I will give you the pad
3:52
pad of 8 mm
3:55
and I will say okay
4:00
so this is the overall shape of our part
4:02
and now we will start knurling it and
4:06
we will see how we can learn this
4:15
now we will switch to the part workbench
4:19
and in part workbench go to the
4:24
this create Primitives option here
4:28
this one
4:34
and here in Primitives
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select helix
4:40
give each 100 mm
4:42
height 10
4:44
radius 10 and say create
4:48
so you will see that uh Helix has been
4:53
created here
4:54
now
4:56
we will switch to the isometric View
5:00
now we will again switch to the part
5:03
design
5:04
and we will create a body
5:07
and we will select create sketch
5:11
and on this plane X Y we will
5:16
draw a triangle
5:19
so for that we will hide this body and
5:22
we will draw a triangle
5:26
like this
5:28
this
5:31
and I will join these two
5:35
from Center I will give dimension
5:40
9mm
5:43
9
5:45
and
5:47
this will be
5:54
10.5
5:59
and I will make these two points
6:01
symmetric
6:02
from here
6:04
and I will select these two line and
6:07
give angular constraint of 90.
6:10
so you will see that our sketch is fully
6:13
constrained
6:14
now I will close it
6:17
and I will on my body by pressing the
6:20
space bar
6:22
now I will select this attitude by
6:25
feature
6:33
here
6:36
and I will select object
6:40
this helix
6:41
so you will see that we are seeing in
6:44
the preview
6:46
but we will have to select some
6:49
orientation mode I will select as a free
6:52
net
6:53
and transformation mode here
6:58
I will go for the multi section
7:01
and I will say okay and I will select
7:05
the make dependent copy
7:09
so you will see that this
7:12
solid Helix has been created
7:15
now we will do polar pattern around our
7:18
part
7:19
so for that we will switch to the draft
7:22
workbench
7:24
and I will hide this grid
7:31
and in draft workbench
7:34
we will select our attitude pipes and go
7:37
for modifications
7:39
and here we will go for Polar array
7:42
array tools
7:44
polar array
7:45
and number of elements I want 20
7:49
and I will say reset point and I will
7:52
say okay
7:54
so you will see that
7:59
it has been polared beautifully now
8:03
we will again switch to the part
8:05
workbench
8:09
and now first we will select our body
8:12
and press the Ctrl key
8:15
and select the array
8:17
now here in the Boolean operation
8:21
here
8:23
select this one
8:28
this Boolean operation
8:34
so our additive pipes polar pattern
8:39
which we have did it subtracted from the
8:41
body
8:43
so this time we have did from the right
8:46
hand side and again we will
8:49
go to the part primate use and again we
8:52
select the helix
8:54
and Pitch we will
8:56
give
9:01
100
9:03
10 and 10
9:06
and we will say create
9:12
but this time we do not want in this
9:15
direction we want in opposite direction
9:17
so we will change us to the left hand
9:21
okay
9:22
now we will hide our body and hide this
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helix
9:26
and we will again switch to the part
9:30
design workbench and create a body
9:33
create a sketch
9:35
and we will go to the isometric and we
9:39
will select this plane and create our
9:41
sketch
9:43
so we will draw the same profile
9:46
as we did for the first one
9:55
so this Dimension will be 9 mm
9:59
9
10:01
and
10:02
this one would be 10.5
10:08
and now we will select these two points
10:11
and make it symmetric
10:14
and I will select these two lines
10:18
and give angular dimension of 90. so our
10:22
sketch is fully constrained we will
10:24
close it
10:26
we will go to the our model and we will
10:29
hide
10:30
unhide this body
10:33
now
10:35
we will again select this additive Pi
10:38
features in object
10:41
I will select this helix
10:43
from orientation mode I will select for
10:46
the
10:47
fraynet and transformation mode will be
10:50
the multi sections
10:53
so you can see that preview of our
10:56
additive Pi now I will say okay and I
11:00
will say make dependent copy and I will
11:04
now we will again switch to the draft
11:07
workbench
11:08
and we will select our attitude
11:11
Pi feature and we will go for
11:14
modifications array tools and polar
11:17
array
11:18
and number of element I want 20 and I
11:21
will say reset point
11:23
and I will say okay
11:27
so it has been patterned beautifully now
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I will say isometric
11:33
now we will select our base body
11:37
which is a cut and then we select
11:41
array tool
11:43
and we will switch to the
11:45
part workbench
11:48
we will again unselect it we will select
11:51
our cut
11:52
main body and this array so selections
11:56
is very important the the part which you
12:00
want to subtract would be selected at
12:02
last first you have to select your
12:04
primary part
12:06
so this is my primary part and I want to
12:09
subtract on this but if you select this
12:12
array 1 and then cut one then it then
12:15
operation will not be performed so
12:17
Selections in a sequence is most
12:19
important while performing the Boolean
12:21
operations
12:22
so I will select this cut and this array
12:25
and I will perform this cut Boolean
12:29
operation
12:35
so it might take some time depends upon
12:38
configuration of your system
12:54
so you can see that operation has been
12:56
performed
12:57
and
12:59
we have learned our part with the help
13:03
of Boolean operations
13:04
so this is how to knurl apart in freecad
13:12
I will save my file
13:27
so this is how to learn a part in free
13:29
Cad and if you like my method of
13:32
teaching then you can
13:34
support me on kofi.com its link is given
13:37
in a video descriptions and at the same
13:39
times if you like my method of teaching
13:41
then please like subscribe and Share my
13:43
video I will come with more useful
13:45
tutorial on freecat and I will provide
13:48
this model
13:51
Link in the video description so any
13:53
beginner user can download the model and
13:56
practice it
13:57
and in the case of any doubt he can
13:59
refer my model
14:03
so this is all about this tutorial thank
14:07
you for watching and thank you your
14:10
valuable time