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FreeCAD Part Modeling Tutorial 146 | FreeCAD Tutorial | 3D Modeling | Learn FreeCAD | Mechnexus |
Apr 25, 2025
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In this video I have explained How to Model Part in FreeCAD with the help of part design Workbench.
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0:00
hello friends welcome to free tutorial and in this tutorial we will model this part as you can see that uh I have
0:07
already model it and uh you can see that uh our freet part is matching with a
0:14
isometric view of a reference drawing now we will uh read the dimensions of
0:20
this top view and section view and we will create this part from the scratch
0:26
so I will close this file and create a new file if you want to learn free CAD from
0:34
the scratch then you can buy my complete free CAD course from zero to expert this
0:41
course is designed from the scratch to the advanced tools and advanced modeling
0:48
in free so here if you visit this course page then detailed course description is
0:54
given and what you will learn user will be easily to switch from a paid software
1:00
to the opensource freead generating 3D model and skillfully design mechanical
1:07
parts master freead you will acquire the proficiency in a tools function and
1:15
interface and uh you can create a complex lex model in a free and hands-on
1:21
project exposure and uh if you scroll down you will find the
1:28
course content like in a first sections I have a explain the free CAD
1:33
introduction and what is the new feature in a 1.0 so you can see the lecture
1:39
inside this section second section is to getting started with a free 1.0 zero and
1:46
how you can customize and third section is a fundamental of sketching to understand
1:53
the sketching and constraining in free CADs fourth section is a fundamental of
1:59
a part design where I have a detail explain the all essential tools of a
2:06
part modeling then fifth one is dedicated to the mechanical part
2:11
modeling and here I have a took the practical examples of a mechanical part
2:17
like a gear cover offset guide anchor bracket bend pipe socket form
2:23
lower lever bracket etc next one is a mixed part modeling in frecad where I
2:30
took the example like a modeling of a coffee mug smartphone etc
2:36
next is a working with a freecad assembly and here I have explain how to
2:41
create an assembly in freead next section is a freecad drawing where I
2:48
have a explain how to create a technical drawings in a free and here I have a
2:55
manufacturing point of view i have included the topic like how to create part list add welding add surface finish
3:01
symbol how to add the GDNT next one is a advanced tutorial in Frecad where I have
3:09
also took the FE analysis in Frecad 3D printing and uh how to use
3:16
the Python tools in Frecad next one is a productivity enhancement tool in freead
3:22
where I have explained many tools in a frecad which will save your time
3:29
and you can create the complex model or
3:34
a complex task within a less span of a time by using this productivity
3:40
enhancement tool next section is advanced part modeling in freead here I
3:46
have uh took the complex example like a gearbox housing enclosures and a cover
3:54
shaft covers so these are the complex part modeling in a free CAD next one is
3:59
a advanced drafting and detailing in a free CAD here I have took the complex
4:06
drawings and I have created the model and also created the drawing and these
4:12
are the lengthy tutorials of more than 30 minutes 40 minutes or 45 minutes and
4:19
uh last one is a projects on a free where I have took the example of a clamp
4:26
modeling and assembly in a free cat from the modeling to the assembly
4:33
everything is included under the project on a free modeling to assembly
4:40
so once you buy my course you will be redirected to the Google drive and here
4:46
is the my course complete free course from zero to expert go inside and uh the
4:54
sections I have shown you on my Kofi shop page so exactly same lectures under
5:03
the section is created for example section one is a introductions to free
5:10
1.0 and what is new in a freecad 1.0 so if you go to the section one so there
5:17
are the 18 lectures and if you go inside of the sections one you will find the 18
5:25
lecture total and once you go to the lecture one you will find a video file
5:31
which you can download to your system and you can watch it so this does not
5:38
require internet connections once you downloaded it and uh you can uh learn
5:44
free guide on the go and this course is updated on a equal
5:52
interval of a time once the new feature is came and uh once you purchase the
5:58
course you have the lifetime access to the course and in the case of any doubt
6:04
any query you can mail me at uh admin ratemn nexus.com at the end you will find one
6:12
uh video which is a promotional video you can watch the video and uh take the
6:19
whole overview of the course you can also explore my shop where you can uh
6:25
download the tutorial source file and some interesting projects on free CAD
6:31
you can find my course link on my YouTube channel you can see the course
6:37
link and uh you can also find my Kofi course page link on uh pin comments and
6:45
uh video descriptions so buy my course and uh keep supporting my free CAD works
6:52
your small course purchase will uh help me to grow this channel and it will also
6:59
motivate me to create more awesome content on free cat
7:05
so please check out my course on uh free CAD from uh 02 expert and now we will
7:15
come back to our tutorial so here I have created a new
7:20
file and I will insert my body and on the origin plane and as per part
7:25
orientation first we will create this uh base profile on a top plane so select
7:32
the XY plane and click on the sketch and now go to the model tab and hide the
7:40
origin plane and now here let's uh switch to
7:45
the our main view and here we will uh
7:51
create first a circle so let's uh create a
7:57
circle and uh we will uh make this circle as a
8:05
construction and now select uh smart dimension and
8:10
provide uh 160 dimension and now we will create these two arc so we
8:21
are uh creating our part as per the isometric view so here we will create
8:29
these two arc and uh just imagine that it is a 90°
8:36
rotated so let's uh create a threepoint arc on uh right
8:45
and uh left hand side and now here first thing we will do is
8:51
to make a coincidence relation with the arc center and the axis similarly on the other
8:59
side say coincidence and now we will move this point little
9:11
bit and now we will create one threepoint arc on the top and one is on
9:16
the bottom select it and uh create the two
9:24
arc and now let's uh add a coincidence relation with our origin select it and
9:31
add a coincidence relation with our origin now here we will
9:38
uh make this two arc symmetric with the axis as it is the distance of 170 so
9:47
let's uh first we will make it symmetric and then add a dimension of
9:53
170 so arrow is added which means that uh it is a symmetric and it will move in
9:59
equal proportions once we move the points now let's uh give the
10:07
dimension let's give the dimension of uh 170 which we can see here and
10:15
now let's give the radius value which is
10:21
R30 so select it and uh give it a
10:27
30 and now select this and this and uh made it
10:33
equal now let's move the points and
10:40
uh now let's make this and this as equal
10:46
and also make it equal now
10:53
here we will uh create a line at the top bottom which will be the
11:01
four line and then we will add a tangency which are this
11:06
one 1 2 3 4 now let's uh select a line tool and create a line by joining these
11:14
two point select line tool and uh create a line by joining two points select this
11:22
and this and this here this now let's add a
11:28
tangency relation so first let's uh select this line and arc and add a
11:35
tangency select this and this and add a tangency select this and this and add a
11:42
tangency and here select this line and arc add a tangency so we have added the
11:49
four tangents and now we will add the four tangent on both the arc two on the
11:56
left and two on the right so we will repeat the same procedure make it tangent select it and
12:04
uh make it tangent similarly here on the right side make it tangent and select
12:12
this and uh make it tangent so you can see that uh our profile is fully
12:18
constrained let's come out of the sketch and here click on the
12:25
pad and provide 25 mm which we can see here and say okay so
12:34
we have created our first feature so let's first uh save our
12:46
part now let's create the next feature so
12:53
here we will select this bottom face and uh on a bottom face we will create this
13:00
diameter 115 and then extrude it in isometric this bottom face is not
13:06
visible but we can clearly see in the section view and also on the top view we
13:12
can see the hidden lines now I have selected the face and now I
13:17
will uh create a sketch so it is very simple just uh create a circle and uh
13:25
select a smart dimension and uh provide it a diameter 115 now let's close it and
13:35
uh create a pad of 8 mm so select the sketch click on the
13:41
pad if you subtract the this dimension from the overall you will get it so
13:50
here is a 8 mm now press zero for
13:56
isometric and if you see the isometric so we will create this uh major outer
14:02
diameter so we will select the top face and click on the sketch and here click
14:07
on the circle and uh provide the diameter of
14:12
uh 122 and click on the close and uh create
14:20
a pad of 25 mm select it and uh provide it a 25
14:26
mm and now if you see the section view so there
14:31
is a group profile now we will create the group profile and
14:38
here just imagine that uh this is the rotated to the 90° and now here I will
14:46
on the origin plane and here I will select the right plane which is a YZ
14:51
plane and uh click on the sketch so here we are on the right orientation
14:58
and let's off the model origin planes
15:03
and let's switch to the wireframe for the better sketching and
15:09
now we will uh create the
15:15
sketch so here we have the origin here so we will
15:23
uh select a line tool and we will create a line on the axis and now we will uh
15:31
use the polyline tool to create a rough profile and then we will
15:41
uh constrain it so here the profile is created and
15:47
now we will start from here so here is a horizontal this is the vertical this
15:52
line having no relation so we will provide data horizontal constraint and
15:58
this with a vertical constraint and this become the horizontal
16:04
constraint and this is also horizontal
16:11
now let's provide the dimension so first provide the dis
16:17
dimension which is a 51
16:23
and this is of
16:32
33 and let's uh constrain this inner
16:38
one select a smart dimension select this point and this point and provide it uh
16:48
42.5 and uh this is of
16:56
45 and uh this line is of uh 20 mm
17:07
now let's move the dimension and uh let's check what is the unconstrained so
17:13
if we move that the total height is unconstrained so
17:19
here we will uh do one thing we will project this
17:25
age at the bottom and at the top so on the top I will
17:33
uh select this point this axis and this point and add a
17:40
coincidence relation so here we are seeing the conflict press Ctrl Z and now
17:46
let's move to the right view here and now let's uh
17:54
move the dimension and now select the point and this one and add a coincidence so here it got a coincidence relation
18:02
and now let's uh again switch to the right
18:10
view and now we have to constrain the total
18:16
height and now here uh total height is of 58 so I have given the 58 you can do
18:24
one more thing instead of giving a dimension you can
18:29
uh simply add a relation by selecting this point and line and add a
18:35
coincidence so here we have seen the conflict so now let's move this
18:42
dimension and select this point and this line at a coincident so sometime what's
18:49
happen instead of a point axis word get selected so we have the fully
18:55
constrained profile and let's come out of the sketch and now here we will uh click a
19:03
group tool and here we will define our own axis so here I will use the Z
19:10
axis or you can select this vertical line of our sketch say
19:17
okay now press zero for isometric view and if you see our model on a top view we can
19:26
see here one hole
19:32
and here we can see the hole which is a G1X4 and uh for this if you see from
19:43
this uh plane it is a 30° so we have to
19:48
create a DATM plane at a angle of 30° from this plane so let's
19:57
create a DATM plane now first uh on the origin plane and
20:05
here we will uh select the plane and we will uh
20:12
create our uh datam plane at a distance of 30° so
20:18
let's press zero so now here reference we will
20:24
select the Z axis and click on the data plane so you can see that uh our datam
20:31
plane is created along the xy and now we will uh rotate
20:37
it so that we get uh this 30° angle so now on the
20:44
x-axis provide the value minus 60°
20:50
so here between the YZ plane which is our datam plane and our newly created
20:57
plane we will get a angle of 30° because if you minus 90 - 60 we will get a 30 so
21:05
now say okay now on the origin plane and here we will rebuild our data plane
21:11
click on recomp compute object and save our file now on this uh data plane we
21:18
will create our sketch so here we will switch our model to the
21:26
isometric view and here we can uh select
21:31
our uh data plane and we can use the align to selection so it will
21:38
become normal our newly created data plane is normal and now we will uh
21:44
switch to the wireframe for the better sketching and let's off this data plane
21:50
and now create the profile and we will revol cut
21:57
it so first thing we will do we will click on the project geometry and project this
22:06
outer edge and now we will uh select a
22:11
line tool and uh create a line and let's first we will fix this
22:20
point so if you see here from the this age to the axis of the hole is of a 13
22:27
mm so I will select this point and this
22:37
point so let's first select this point and then select this point and
22:44
provide the 30 mm and
22:50
now we will create one more line select a line tool and create one more line and
22:58
now again select a line which we can make a parallel or we
23:04
can also add a perpendicular relation and now we will uh if you zoom
23:12
so we have come here and now we will create a line with angle so create a line and
23:21
then create one more line and let's make this
23:29
shorter and here we will uh create a line by joining
23:35
these two points and here we can add a
23:40
parallel relation and now let's constrain our
23:46
dimension so first is a G1X4 you can uh
23:52
search the diameter value for the drilling
23:59
so this is radius is
24:05
of 5.945 so this is the value applicable to
24:13
the G1X4 here I have given the radius and now select this and this and provide the
24:22
18 mm and uh this angle here is not defined so we will
24:30
uh make it approximate to the 1 mm and let's move this 1 mm dimension
24:38
and uh total is of 50 we will take the value so that it should open in
24:44
a clear area so select a dimension and uh provide the 50 mm so
24:53
that it is opening in a clear area even though you can
24:58
uh make it 55 from the safer side and now let's
25:06
uh constraint this dimension so this is of a diameter 6 so we will make this
25:13
line 3 mm so select the smart dimension and select it and uh provide the 3 mm so
25:21
you can see that uh our uh profile is made and uh this is
25:29
basically G1X4 use in a pipe thread so
25:34
now we will come out of the sketch
25:40
and here if you see let's try to create a group cut
25:50
here and uh let's say okay so wire is not closed so we have to validate our
25:58
sketch so go to the model and select the sketch and click on the validate option
26:04
and zoom our sketch and click on highlight troublesome
26:10
vertex so here let's see what is the
26:16
unconstrain so here we are uh not seeing anything on the
26:22
screen let's zoom it and uh again click on highlight troubleshoot vortex
26:29
so here uh I think that a problem is that we should make this point outside of a body so let's edit the
26:38
sketch and here we will delete this construction line and uh we will uh move this
26:45
line and now we will again project this and uh
26:55
let's add a small dimension of 2
27:00
mm so that it come outside of a body and now let's see what is the
27:06
unconstrain so this is the unconstrained so let's provide a suitable
27:12
relation and now let's see what is unconstrained so this axis so axis is a
27:20
13 mm from the edge so select the smart dimension and select this and provide the 13 mm
27:30
now let's try to revolve it and uh select the sketch click on the groove
27:37
feature so now groove is created here but the axis is uh not correct so we
27:45
will select the reference so once you select the reference your sketch will be
27:50
visible and now we want to create the groove around our this line so click on
27:56
it so you can see that uh a groove is created and if you rotate our model we
28:04
can see that it is opening perfectly as per our reference drawing now press zero
28:13
for isometric view now if you see on a top view there is a
28:18
hole whose detail we can see in a section AA if you go in a section AA so
28:24
this is the M10 hole with a drill of 18 mm but the tapping is of 15 mm so we
28:32
will first select the top face and click on the sketch and if you see the top
28:38
view so here is a PCD of 135 so let's
28:43
rotate our model to this orientation and uh click on the circle and create a
28:49
circle and now here we will first make it a construction and let's add a
28:54
diameter of
28:59
135 and now here is angle is of 45 so we will also create a
29:06
line and also make it a construction and let's uh provide a 45°
29:14
from the axis you can also provide this from this axis so let's provide a 45 so now we
29:22
have got this point and now we will uh create a
29:32
circle and uh select a smart dimension and uh provide it a 10 mm so we have the
29:41
diameter 10 circle now we will close it and here we will not use this pocket
29:47
tool to create the hole as I do most of the time here we wanted to create a
29:53
threaded hole now select the sketch and click on the hole wizard and here we
30:00
wanted to create four holes of M10 so from here I will select uh isometric
30:07
regular profile and here I will give the 10 mm depth depth I here I will give the
30:13
18 mm and uh go to the threaded and now here I will select the
30:20
dimension and uh threaded dimension is of 15 mm say
30:28
okay so you can see that uh hole is created
30:34
and now we will polar pattern this
30:39
hole because if you see
30:44
here there are the four holes so if you see the holes here so
30:52
that uh are in the hidden so this hole will be at a bottom side so we can
31:01
easily fix this with the attachment editor
31:07
now click on the attachment editor and here on the attachment editor instead of
31:13
uh this face we will delete it and we will define this bottom face select
31:20
reference and select this bottom and say okay now let's rebuild
31:28
it and also rebuild our
31:33
hole so you can see that hole is fully defined to the bottom face and now
31:40
select the hole and click on the polar
31:45
pattern and uh type the quantity
31:51
four say okay now switch to the top view and let's see the wireframe
31:58
view now you can see that uh these four holes which are hidden and are from the
32:04
bottom face is created now let's uh switch to the flat
32:09
lines so now we will
32:16
uh create these two holes of D 26 which is very easy to
32:22
create and uh we will select this top face and click on the sketch and here I
32:28
will select the project geometry and uh project these two radius click on the circle create a
32:37
circle and uh select the dimension and provide the
32:44
26 and select this and this and uh made it equal say close select the sketch and
32:53
uh it is a plain drill hole so you can make with cut let's select the hole and
32:59
uh here select none and provide the diameter
33:06
26 and from here say it through all and say
33:12
okay now here at
33:18
uh section view we can see that chamfer of 1 mm on the edges
33:25
so let's provide the chamfer so here is a 1 mm chamfer on
33:31
inside and outside so I will press control key select these two edges and
33:37
provide the chamfer of a 1 mm similarly on the bottom
33:47
side this is the 1 mm
33:53
chamfer and uh this both also having the 1 mm chamfer so let's add
34:00
it click on the chamfer and say 1 mm
34:06
now here at the bottom side we will uh cross check this section
34:14
because this uh thickness looks not correct with respect to the
34:19
drawing so let's fix this so go to the pad and uh identify the feature so this
34:26
is the feature and now let's cross check the dimension so if we go here so it is
34:34
the 115 that is okay now we will uh cross
34:39
check it with the group feature so let's on the group feature and
34:47
uh move to the wireframe view and
35:00
here so this is for the hole we are not looking for this we are looking for that
35:08
internal cut so let's go to the flat
35:17
lines and now let's check here on the dimensions so this internal one is of
35:25
diameter 19 so we have to check this dimension so this will be the
35:34
45 let's uh switch to the wireframe so this should be the 45
35:41
because diameter is 90 so make it 45
35:49
and this one on the other side this is the of
36:01
102 102ide by two and click on
36:07
close and uh let's move to the last feature and hide this
36:12
sketch and uh from here switch to the shaded view switch to the flat lines so
36:20
now it looks okay this thickness so this is how if you have
36:27
modeled something and how we can uh rectify and how we can rebuild it
36:34
so we have successfully created this model from the scratch and uh you can
36:39
see that uh it is perfectly matching with our uh reference isometric
36:46
view so this is all about this tutorial and this tutorial is uh for the beginner
36:53
user to understand the how to create a data plane pad grooves polar pattern
36:59
chamfer and holes so I hope you have enjoyed this tutorial thank you for
37:05
watching and thank you for your valuable time
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