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FreeCAD Sketching Tutorial 02 | FreeCAD Tutorial | Mechnexus
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May 16, 2025
#freecad #freecadsketch #freecadpartdesign In this video I have explained How to do sketching in FreeCAD. ▶️ Get my Complete FreeCAD Course : From Zero to Expert ! on Ko-fi https://ko-fi.com/s/1ab4385434 ▶️ Get my Complete FreeCAD Course : From Zero to Expert ! on Udemy https://www.udemy.com/course/freecad-course-for-beginner/?referralCode=3BA9B526A12F96295D44 ▶️ Join my channel membership and keep supporting my work: https://www.youtube.com/channel/UCcn6z2whMaFu-_LDsEXCfVA/join ▶️ Visit my website for more info on FreeCAD-: https://mechnexus.com/ ▶️ Download Source File of 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.
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0:00
Hello friends Welcome To freat tutorial
0:03
and in this tutorial we will learn
0:06
sketching in freecat we have the gear
0:09
arm sketch and we will do it with the
0:13
help of a part design workbench but we
0:16
are not going to extrude it we are just
0:19
going to be practice the sketching in
0:23
freead and how to read the drawing and
0:26
how to create the
0:28
sketch you can also visit my website
0:31
Mech nexus.com where I write articles
0:34
and tutorials on freead you can download
0:38
my tutorial source file from the here if
0:42
you like my method of teaching then
0:44
please support me on coffee.com you can
0:48
buy me a cup of coffee your small
0:51
support will help these channels to grow
0:53
and it will motivate me to create more
0:56
awesome content on
0:58
fead I will will provide my website and
1:02
my Kofi donation page Link in a video
1:05
descriptions so let's come back to our
1:08
tutorial Hello friends Welcome To frea
1:11
tutorial and in this tutorial we will
1:14
learn sketching in freeat we have the
1:17
gear arm sketch and we will do it with
1:22
the help of a part design workbench but
1:25
we are not going to extrude it we are
1:28
just going to be practice the sketching
1:31
in freead and how to read the drawing
1:34
and how to create the sketch so let's
1:38
start our tutorial so here I will uh
1:41
close this startup page and I will
1:43
switch to the part
1:47
design create a new
1:54
file create a new file create a body
1:58
create a sketch as we are going to just
2:02
doing do the sketching practice
2:04
therefore we will select this front
2:06
plane and create our sketch so before
2:09
starting the sketch we will understand
2:12
the base feature of the sketching so if
2:15
we read the drawing then we can find
2:17
that this slots this
2:20
hole are the major
2:23
feature and based on three this major
2:26
feature we will make this one so it is
2:31
advisable from my end to Target your
2:34
base feature so in this casee our base
2:37
feature will be this one where will be
2:39
our
2:41
origin and this will
2:43
be here at our origin point this uh
2:46
Circle and based on that we will draw
2:49
one by one feature and we will complete
2:51
our sketch so let's start so I will
2:53
create a a
2:57
circle two circles and now we will read
3:00
the dimension that uh outer one is a
3:04
44 and uh inner one is
3:08
a
3:10
28.57 we will consider the maximum so
3:13
first I will select the inner one and
3:15
give the
3:16
diameter
3:20
28.57 say okay and
3:24
now outer one is a
3:28
44 now I will move my
3:31
Dimension so this is the base features
3:33
which we have draw now we will make this
3:37
slot features so in sketching you will
3:40
get here the slot
3:43
tool just to create a slot and now we
3:47
will uh give the
3:49
dimensions so if you see
3:53
here this Dimension 148 from this uh
3:56
slot Center to this one but this Center
4:01
to this Center dimension is not given so
4:05
what we will
4:07
do we
4:09
will create a circle here by creating a
4:13
circle tool we will create a circle
4:18
here and this is will be of diameter
4:25
22 22 and
4:28
now from this base feature this one is a
4:31
60 so we will select horizontal
4:34
Dimension and give it a
4:40
60 and now this is the
4:43
148 so I will select this one and this
4:47
one and give it
4:51
148 now I move my
4:54
Dimension now I will select my slot and
4:58
VI it a
5:01
diameter
5:05
Dimension which is of
5:13
22 and from Center to Center distance of
5:17
this slot is 25 so I select these two
5:20
points your horizontal dimension of 25
5:24
and I move it
5:28
down now
5:31
now we will create these two circles
5:35
so I will randomly create a two circles
5:39
and now I will give the dimension so
5:41
inner one is a
5:43
19.05 select diameter and give it uh
5:51
19.05 and uh outer one is a
5:58
40
6:03
so while uh creating the sketch if you
6:06
select one features and you will draw
6:09
this Arc then this uh Circle then again
6:13
draw this Arc then make this then it
6:15
will be time consuming the smarter way
6:18
to create a sketch is that first you
6:21
create the base features and then you
6:24
draw this Arc so this will save your
6:27
lots of time so that is the best
6:29
practice to create a sketch in a less
6:32
span of a time now uh we will give this
6:34
Dimension 48 from this to this it is a
6:39
vertical 48 and horizontal is a 19 so I
6:43
will select these two points and give
6:46
horizontal dimension of
6:48
19 now I move it to the
6:52
outside so that you can clearly see the
6:58
dimensions
7:01
now I will move it
7:04
here okay now we will create this
7:08
slot to create this
7:11
slot let's go to the slot tool if you go
7:14
to the slot tool then it will be the
7:17
linear slot means
7:19
uh we cannot create a slot like this
7:23
with this slot option tool so best way
7:26
is we will create this two Arc
7:32
so I will click on the three-point Arc
7:35
and I create the two
7:40
Arc and this two Arc Center is a same
7:45
with our base origin
7:48
Center say
7:53
merge also select this
7:58
one
8:05
so now we will select this two and give
8:09
the tangent
8:11
relation with this
8:14
one and this one tangent
8:19
relation select this one and this one
8:22
and give the coincidence
8:24
relation this one give the coincidence
8:27
relation now Let's uh
8:33
see where it is
8:36
pointing it's
8:38
a
8:44
center so better way is that rather than
8:48
creating a three-point
8:50
Arc we will create uh two circles that
8:54
will be the best
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practice create the two
9:01
circles and make it
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tangent make it
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tangent okay and now same way create one
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Circle
9:16
here
9:18
and create the tangent
9:21
relation bit to move it inside and then
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give the tangent
9:26
relation now we we will simply trim the
9:30
unnecessary geometry which we do not
9:32
want so click on the trim
9:55
tool now let's see the conflict
9:59
so conflict here is a coincident delete
10:02
it so here you can see that
10:06
uh our constraint has
10:11
been got into white color so let's see
10:14
what
10:17
happened so here we have the five degree
10:19
of Freedom so this 5 degree of Freedom
10:22
highlighting in this sketch so let's fix
10:28
it
10:37
so nothing is moving here let's see here
10:41
so here is the issue so we
10:45
will give the
10:48
tangency on
10:51
the both the
10:54
site you the tangent now let's give the
10:58
dimension
11:01
so here it is uh
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49 and this
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one is a
11:09
70 so if you see here this is the R22
11:16
that's
11:18
mean it will be diameter
11:22
44 right and it is of
11:26
the so sorry uh this is the outer
11:31
one okay so let's uh first uh first make
11:35
this outer
11:37
one and uh we have the 40° angle from
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this point to this
11:44
point so I will uh create a line simply
11:49
joining this two and select it and make
11:53
it construction select this axis and
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this line and give angular dimension of
11:59
for
12:03
40° now here uh we will select this two
12:07
Arc and make it
12:09
equal and I will move this 40 mm
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Dimension
12:16
now what is the unconstraint we will see
12:20
we will just uh simply select the point
12:22
so we can see that
12:24
uh this point is not fixed so we will
12:28
simply make it horizontal relation here
12:32
so now you can see that uh our outer one
12:36
is a constrain now we will create this
12:40
inner one slot as
12:42
well and then we will complete our
12:46
profile by creating this
12:48
Arc so now let's uh create two
12:54
circles here and here and we will make
12:58
simply this equal relation and give the
13:03
one of the circle
13:06
Dimension so inner one is a 22 that
13:09
means which is a diameter so I will
13:11
simply select it and select diameter
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option and give the
13:19
22 and
13:23
now we will select the three-point
13:27
Arc
13:33
and uh we will merge the
13:36
center with our origin same merge and
13:41
then select this Arc and point add the
13:47
relation simply this one Arc and
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point
13:56
now all we need as add the tangency
13:59
relation let's
14:01
see so here
14:06
tangency so at this point you can see
14:08
that it is a coincidence so it is a
14:10
tangency has been added already here
14:13
because it is a conin if we add the
14:16
tangency uh by selecting this two Arc it
14:19
will be overdefined the sketch let's try
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it okay it's got a uh added tangency
14:26
there so we can give coincidence plus
14:30
tangency now again select the
14:32
three-point
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Arc and
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uh create a rough Arc and this Arc
14:40
Center is here so merge with our origin
14:44
say
14:45
merge and
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now let's uh first make the
14:53
tangency make the tangency now here we
14:57
can use one more tool instead of Arc and
15:00
point constraint we can use the trim
15:02
option so once you we use the trim
15:05
option it automatically adds the Aran
15:09
Point coincidence let's stream
15:12
it and uh trim the inner
15:17
one so we have made all four base
15:22
features now we will create this
15:26
Arc and complete our profile so I will
15:30
move the
15:31
dimension outside so that uh you can
15:34
clearly see
15:48
it now we will create this uh Arc of uh
15:53
44 so I will select the three-point
15:57
Arc
16:03
now I will select this and this and add
16:07
the tangency relation similarly this and
16:11
this tangency
16:13
relation now I will select this point
16:16
and this line and add the relation so
16:19
here is a
16:21
conflict which is a constraint 44 let's
16:24
delete
16:26
it so it will be something like
16:30
this let's
16:34
uh use the trim option because tangency
16:38
is
16:39
added so trim
16:43
it and now let's see by moving this
16:49
sketch so here we are losing the one
16:53
contact which is the arc and
16:57
point
17:02
Let's uh delete it I think the problem
17:06
is here we have not defined the radius
17:09
Dimension so it is going outside means
17:12
it is a tangent but this point is going
17:14
outside so we will simply click on the
17:16
radius tool and give our radius
17:19
44 so you can see that it is a perfectly
17:24
constrain
17:25
now we will uh again select a
17:29
three-point Arc so instead of uh using
17:33
the three-point Arc you can also use the
17:37
circle and make this circle smaller and
17:42
add the tangency relation
17:45
here and also add the tangency relation
17:49
here and now we can simply use the trim
17:55
command and add our radius
17:59
R6 select the radius and give it 16
18:04
mm so there are the multiple ways to do
18:08
the things in
18:09
freeat it depends upon your convenience
18:13
the which tool you like must
18:17
now we
18:21
will
18:23
create a line from here which will be
18:27
the tangent to this
18:30
Arc and we will
18:32
create this radius R35 and R6 so we have
18:37
both the options either we can try from
18:39
here so if you see here we do not have
18:43
the angle Dimensions given for this line
18:47
so we will start from here so
18:52
simply I will select a three-point Arc
18:56
and I create a rough Arc
18:59
and I will add the tangency relation
19:03
here and then I will create one more
19:09
Arc one more Arc and I will add the
19:13
tangency here and then I will create a
19:21
line and
19:24
then I will add the tangency
19:27
relation
19:29
and simply I use the trim
19:32
tool
19:36
so trim tool is it is a tangent but if I
19:43
use the trim tool then it is completely
19:46
removing the line so what I will do I
19:49
will select this point and this Arc and
19:52
add the coincidence relation now we will
19:56
give the dimensions
19:59
select this Arc and uh view it
20:03
uh 16
20:06
mm and here tangency is not so we will
20:11
add and this one is a
20:14
35 so we can see that this Arc Center is
20:19
a not merg with our origin so we will
20:22
select it and click on the
20:26
merge and now we will will give the
20:30
radius and give it
20:35
35 so we
20:38
have constrain it but this Arc is not
20:41
constrained so let's find out
20:45
it so here it is a tangent but it does
20:50
not have a coincident
20:54
relation so we will select this point
20:58
and this AR and add the coincidence
21:01
relation so you can see that uh how we
21:05
have converted this uh gear arm
21:10
sketch into the freeat sketch with the
21:14
help of a part design
21:17
workbench you can also use the Sketcher
21:20
workbench but uh from my
21:23
side the Sketcher inside the part design
21:27
workbench is recommended now I will
21:29
switch to the front view now you can see
21:32
that uh we have uh learned sketching in
21:35
free C and how we have did it if you
21:39
like this tutorial then please like
21:41
subscribe and share my
21:43
channel thank you for watching and thank
21:46
you for your valuable
21:48
time
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