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FreeCAD Part Modeling Tutorial | FreeCAD Tutorial 141 | 3D Modeling | Learn FreeCAD | Mechnexus |
Apr 24, 2025
#freecad #freecadtutorial #learnFreeAD In this video I have explained How to Model Part in FreeCAD with the help of part design Workbench. ▶️ 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/ ▶️ Get my FreeCAD Crash Course for beginner-: https://www.udemy.com/course/freecad-course-for-beginner/?referralCode=3BA9B526A12F96295D44 ▶️ 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. 👉 Help support this channel by buying me a coffee: https://ko-fi.com/mechnexus
View Video Transcript
0:00
hello friends welcome to FREA tutorial and in this tutorial we will model this part and uh you can see that I have
0:08
already model it and you can see that uh our fread model is matching with the
0:13
reference isometric view of drawing We will uh read this drawing and we will
0:21
create this part from a scratch using the part design workbench of a free
0:27
For this tutorial I'm using the Frecad version 1.0 So you must have at least
0:33
Fread version 1.0 or higher Now I will close this file and we
0:39
will start this tutorial from the scratch You can also visit my website
0:45
macexus.com where I write articles and tutorials on a freecad and you can also
0:52
access my 3D part library of a free CAD
0:58
You can download the part from here and you can use in your projects with
1:04
modifications You can also access my 2D drawing
1:09
library where you can u download this 2D drawings and uh you can create 3D models
1:18
with respect to these drawings You can also support me on
1:25
coffi.com You can buy me a cup of coffee Your small support will uh help this
1:32
channels to grow and it will motivate me to create more awesome content on uh
1:38
free cat You can find my Kofi donation page link in a video description as well
1:45
as you can also see my Kofi page URL on this
1:50
header So let's come back to our tutorial Here I have created a new file
1:58
activated the part design workbench and I will insert my body I will on the origin plane and we
2:08
will create our first sketch So if you see the isometric view
2:13
so we will create our first sketch on a front plane which is a exit plane and uh
2:20
we will create this half profile and then we will revolve it So let's select
2:25
the exit plane and click on the sketch And now I will off the origin
2:34
plane And now let's uh create a profile We will use the poly line We
2:42
will create an approximate profile and we will uh revolve it around
2:48
this axis So let's uh create our basic profile
3:08
So you can see that uh basic profile is created and now when you create such type of a
3:15
profile always start constraining the maximum dimension So here I will select
3:21
a smart dimension and uh provide it a dimension
3:27
47.5 and uh this is of
3:34
13 and uh now this will be the
3:44
28 And now let's uh move it And this line is not horizontal So make it
3:52
horizontal And now we will constrain this maximum
3:59
dimension And this is of
4:06
31.5 And this is of 10 mm
4:16
Let's move the dimension And now let's constrain this
4:23
point Select a smart dimension And this is of
4:30
27 So our uh sketch is fully constrained We will uh come out of sketch Press zero
4:39
Select the sketch and click on the revolve tool So here fread has took this
4:45
Z axis but we wanted to revolve it around the X-axis Select the X-axis and here you
4:54
can do one more thing You can uh click on select reference and select this line
5:01
So you can see that uh sketch age 8 is selected But if axis is available then
5:07
always use the axis and say okay So we have created our first base
5:13
profile and now we will uh create this
5:20
sketch So let's select the face and click on the sketch And
5:27
now we will select a rectangle tool and create a rectangle So for this cut this
5:36
uh line position from this axis and this line position from this axis is important and uh length and height we
5:44
will keep as approximate So let's first constrain the dimension So if you see
5:51
the cut profile so from the axis it is a 15 mm Select the smart dimension
5:57
Select this and this and provide the 15 mm and uh from the axis to this is of
6:06
33 So select this point and line and provide the
6:13
33 Now let's uh move it Now
6:20
here we will give the approximate dimension let's say 50 mm and uh let's give height
6:29
as of uh 20 So our sketch is fully constrained We
6:34
will uh close it So here if you see we uh while creating the sketch we have not checked
6:41
the orientation So let's press edit sketch and press zero for
6:50
isometric view So we have did the sketch in a wrong orientation So we will delete
6:55
it and switch our model to the right orientation And we will click on the
7:01
sketch And let's give the
7:07
dimension This is 15 And uh this is of
7:15
33 and uh let's provide this as uh 50
7:20
and this as a 20
7:26
Now let's uh move the dimension And now click on close Now our
7:33
sketch is on the right orientation We will select the sketch and click on the cut And from here say it through all and
7:41
say okay Now we will uh create our next
7:47
feature which is this cut So we will select this back face and click on the
7:53
sketch And now here we can see that uh this angle is of
8:00
120 So we will create a line which will
8:05
be a construction But before that we will project this uh outer diameter and
8:10
we will select a line tool and we will create an approximate
8:17
line Select it and make it construction And now select the smart
8:23
dimension Select this and this this axis and uh give the angle of
8:32
120 mm And
8:38
now we will uh create a line which will be parall to this construction line and
8:44
provide the position of 15 mm So here we will create an approximate line So here
8:50
you can see that it is a snapping to the here So we will create a line outside of
8:56
a body and we will make it coincidence and we will uh drag it And now we will
9:05
add a parallel relation between this And now here we will add a dimension Select
9:12
this and this and uh provide it a 15 mm
9:19
And now we will uh create a
9:25
line and join it And now here the angle between this line and this line is of
9:32
90° So I will select this and this and provide a perpendicularity
9:37
constraint Now the point position of this and this is not given
9:46
So I will uh provide the missing dimension 8 mm And now we can uh see
9:56
that this loop is not closed So we will close with a threepoint
10:02
arc and uh let's select this and this and uh we
10:12
will add a tangent We can also add the equal constraint Now I will uh close it
10:18
So here uh we have forgot to check the right orientation The mistake which we
10:23
have did here So let's edit the sketch and
10:29
uh rotate our cube Now what we will do we will delete
10:36
this angle and uh move this line and we will delete this uh 8
10:47
mm And here let's uh first constrain this
10:59
120° And now let's move this line and uh provide the 8
11:10
mm Now click on close Now it is on the right orientation Select the sketch Click on
11:16
cut and uh say it through all Say okay
11:23
Now we can see the two holes here
11:30
which one is on the axis as one is on the 120° So we will uh create a hole So
11:38
here two holes of diet 10 So we will select the face and click on the sketch
11:44
and I will create circle and uh make it a
11:51
construction And now if you see here so two holes
11:59
of diameter 10 and center to this hole here is a 6 mm and here is
12:06
a 33 So from this center to this is a 33
12:11
+ 6 is a 39 which means that PCD of the 39 So we will select a smart dimension
12:18
and uh provide this 39 ultiplied by 2 So
12:26
78 So this is the PCD And now uh I will uh select a circle tool And uh first I
12:36
will make this coincidence relation and then I will make a coincidence relation with a diameter And this is of a
12:43
diameter 10 So let's give the 10 mm dimension And now
12:49
here as we did in a previous sketch we will uh create a line and uh make it a
12:57
construction and uh we will provide the angle of uh
13:05
120 And now we will uh create the
13:12
circle and we will create a circle directly on this point and here we will select this and
13:21
this and made it equal Now set close So
13:27
here we will uh change the orientation So let's uh press zero for isometric And
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now here we will uh delete this coincidence relation Move
13:43
it Select this and this and uh make coincidence And
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now we will uh delete this angle Move this
13:55
point And let's provide a 120
14:02
Now click on close Now our sketch is on the right orientation Select the sketch And now instead of
14:10
cut I will use the whole wizard as it is a drill hole Simple drill hole So you
14:16
can use with a cut as well No issue But here I will select the none And uh
14:21
simply I provide a diameter of a 10 mm And from here I will set it through all
14:28
And so okay So you can see that a hole of 10 mm is created and
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now if you see here there is a threaded hole is given So let's cross check its
14:45
dimension So here if you see the two holes of M6 So we will create a hole One hole
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here and one hole here So we will select the face and click on the sketch and
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let's press the zero and uh now I will uh project this age and uh let's
15:09
create circle and this is the of the
15:15
M6 and now let's uh project this vertical edge and
15:22
now if you see this this dimension Let's uh give the reference dimension This is
15:29
of a 13 mm So it is a reference And
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now we will uh define the
15:42
position So here we will uh link the dimension So let's link the dimension
15:48
with the reference So here I will go I will type the D as a shortcut D13 means
15:54
dimensions 13 And uh now I will select the smart dimensions tool And
16:05
here I will select this point and this one and here I will link it So here I
16:14
will go and uh type the constraint constraint dot So here free
16:21
days already recommended that D13 is the name I have given So I will select it So
16:27
here a reference constraint from this cannot be used in expression So no issue
16:33
but for normal dimension we can use it So let's uh give the 13 /
16:40
2 Now now give the vertical position So if
16:46
you see that 33 is given here and it is a 6 mm So from this age to uh is is of 6 mm So we
16:55
will select this age and uh provide the 6 mm And now we will uh close
17:05
it And here we will select the sketch and click on the whole wizard And uh
17:11
here we will select the isometric regular profile And we will select our size of a tap which is of M6 And here if
17:21
you see that from this age to this is of a 15 mm So instead of a dimension I will give
17:29
the 15 mm So that it get open in this
17:34
clear area and say okay Now same way we will uh do the
17:43
sketching here So we will select the face and uh click on the sketch Now press zero for
17:52
isometric and let's uh select a circle tool Create a circle And same way we
17:59
will uh project the edges I will project this horizontal and vertical And uh
18:07
let's provide the dimension from this to this is of 6 mm
18:13
And uh here 13 / 2 which is of a 6.5 And
18:21
here I will provide a diameter of a 6 mm Say close and now select the sketch and
18:29
click on the hole wizard and uh as we did in a previous hole select the
18:35
isometric regular profile Select the size of a thread and uh provide the
18:40
dimension 15 mm So you can see that uh hole is
18:49
created Now here it is intersecting here So we will
18:55
uh say okay and we will uh change the position So
19:02
position if you see here so it will be the 33 from the age and six So let's
19:11
press zero So here if you see the dimension
19:21
which we have given in the sketch is of 8 mm that is not a approximate dimension
19:26
which I have a given So here I will go with this cut and uh make one changes
19:34
Let's press zero So here instead of 8 mm we have here the 33
19:41
dimensions So I will provide that dimension So select our dimension Select
19:49
this line and this point Let's make this normal
19:57
So here I will uh create a line and let's make it
20:03
construction and uh make it
20:09
perpendicular and now select the dimension and provide
20:15
here dimensions 33 because this cut and this cut is
20:23
identical So in drawing this dimension is given So from this center to this age is of 23 which I have did And now let's
20:31
check our hole So now the hole was intersecting
20:36
here which got fixed Now press zero for isometric and we will
20:43
create our next feature Now we will create our next
20:49
feature So if you see the isometric view So here is a cut and whose detail we can
20:56
see in a section view So this is of a diameter 28 with a 4 mm depth So we will
21:02
select the face and click on the sketch And now here I will
21:08
uh create a circle and uh this is of diameter 28
21:16
Click on close and uh cut of 4
21:23
mm Say okay And now we will uh create the keyway profile
21:32
If we see the front view so there is a keyway profile is given And uh this
21:37
keyway is of through So we will uh press our model to
21:43
the isometric view and uh we will uh select this front face and click on the
21:51
sketch and now press zero for right orientation and let's rotate our cube So
21:58
this is the
22:08
orientation for the cut So let's uh select the
22:15
circle and uh this is of a diameter 20 Let's zoom this area So here is a
22:21
diameter 20 and uh provide the 20 mm And
22:27
now here I will uh create a rectangle
22:32
And I will delete this And uh I will uh use the trim tool to trim this extra
22:39
geometry and trim this And now I will make this symmetric Click on the
22:45
symmetricity Select this point this point and this axis And here our uh
22:52
width is of a 6 mm So let's first provide here 6 mm and now from the
23:01
origin to the top is of
23:07
12.3 and uh close it So here let's press zero for
23:14
isometric And now select the sketch Click on
23:23
cut and say through all and say okay Press
23:31
zero Now we will
23:37
uh move to the next feature which is to provide the chamfer
23:42
So we can see here the one 1 mm chamfer is given on the both the edges of our
23:49
cut So basically this chamfer is given to insert the shaft This known as a
23:57
entry chamfer and uh as a design point of view this chamfer is a must If you are inserting pin shaft anything so
24:05
never forget to provide a chamfer So if chamfer is not provided here then problem is that shaft cannot be inserted
24:12
So now this is the pro purpose of this chamfer
24:18
Now let's uh click on the chamfer icon and uh give the 1 mm Say okay And here
24:27
is also the chamfer of 11 1 mm So we will select this and this and uh select
24:33
the chamfer So the chamfer or fillet of 1 mm
24:39
and.5 mm is the most common You can also provide a note on a technical drawing
24:46
that uh remove all sharp edges and burrs or un specified chamfer or radius are of
24:55
the 1 mm for fillet and chamfer So this is a best practice to always provide the
25:01
chamfer In fact this uh drawing do not provide a
25:06
chamfer here but it should also comes a chamfer because the sharp corners which
25:11
you are seeing in a model it may you know give the injury to the machine shop
25:17
operator who is manufacturing this part So uh that is a different topics
25:22
when I will uh make any technical drawing or you can uh uh see the
25:27
technical drawing tutorials available on uh my YouTube channel where how to provide
25:34
the common notes on the drawing So we have successfully modeled the
25:41
overall features of the part and now we will model this uh one more features
25:47
which is very easy to select the face and uh create a sketch So let's select
25:53
the face and uh click on the sketch and here we will move to the front view and
25:59
this details we can see here So 7° 62 and inner and outer radius
26:09
So here I will uh create a two
26:16
circles Okay And uh now I will uh select the line tool Create one line here and
26:24
uh one line here Now I will use the trim tool
26:31
So remove the un unnecessary geometry So you can see that as it was not a
26:37
coincidence So no worry uh we will use the threepoint arc and
26:42
uh create one arc and uh I will add a
26:47
coincidence relation
26:54
Now let's first uh constrain the radius
27:00
So here we can see that the outer one is of a 26.8 So here specific I select the
27:06
radius dimension and uh constraint this radius which is of 26.8
27:12
date and uh let's move it and uh inner
27:23
one of 23.7 and now I will
27:30
uh move it and let's provide this angle of 7°
27:37
select a dimension and uh make this uh
27:43
seven and uh let's move it And now
27:52
here I will uh provide the angle of uh
27:59
62 Now here let's uh switch to the wireframe view So the line which we are
28:06
seeing here if we draw it or extend it it must be matched to the center So to
28:14
do that I will create a line which
28:19
will connect to the origin So select a line tool Select this and uh this and uh
28:27
I will make it a construction and select this line and this line and add a
28:33
parallel so that uh this line is passing
28:38
through or I'm making a coincidence relation with origin Same way we will do it
28:47
here and we will make it a construction and select this line and this line and
28:53
add a parallel So this is a technique to identify some details which is not
29:00
mentioned in a drawing So practically there is will be a dotted line should be shown on the drawing which is not
29:07
shown And now let's uh close our sketch And uh in a side view we can see that it
29:14
is a pad of uh 10 mm So here let's change the
29:19
orientation Press zero So
29:25
now so here we will uh delete this
29:31
angle and we will move it
29:37
always uh place your model to the right orientation because free rotate it So
29:45
here now let's uh provide the angle
29:50
again 7 mm and uh from this to this is
29:56
of
30:01
62 and now close it Now let's switch to the flat lines
30:10
view Select the sketch and click on the
30:16
pad and give the 10 mm Say okay So you can see that uh we have
30:24
successfully modeled this part from the scratch and our free CAD model is
30:31
matching with the isometric view of our reference drawing So this is all about
30:37
this tutorial Thank you for watching and thank you for your valuable time
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