Hello friends, welcome to FreeCAD Part Modeling Tutorial and in this tutorial we will design
this simple sheet metal part and I will show you from the scratch how you can do the same
in FreeCAD. So we will do this part with respect to our 2D drawing and we will convert into the 3D model
So let's start. I will create a new file and before starting the tutorial, if you like my method of teaching
then you can support me on kopi.com, its link is given in the video description
And I would also request you to please subscribe, like and share my video
Your small support will help this channel to grow. So to start this part tutorial, we will switch to the part design workbench and we will create
our body and then sketch and we will select this XY plane for sketching
Now if you see our 2D drawing, our part length and width is 120 by 70
So I will draw a rectangle. I will select this, sorry I will go for symmetricity
I will select this point, this point and this axis. But here are some conflicts, so I will delete this horizontal constraint and same way I
will select the symmetric, select this point, this point and this axis and I will delete
this horizontal constraint. So now you can see and now we will see in this direction
So this is symmetric, now we will give our dimension, 120 and this one is 70
So our sketch is fully constrained, we will set close. Now we will install Sheet Metal workbench, I have already installed it
Here is the Sheet Metal and if you do not know how to install the addons, then go to
the tools and then go to the addon manager and here search for the Sheet Metal and here
you will get the Sheet Metal workbench, install it and restart your FreeCAD
So I will select this sketch and I will click on make base wall
So this has been created a base feature of our part. But we will modify few things here
Thickness, as you can see in our part thickness is 6mm, so I will give thickness 6mm and rest
of the ok. Now we will create these two side flanges. So for that I will select on this edge and I will say flange
But this has been, this flange got at the downward direction, so we will change it
So length of this flange is 60mm, you can see here in our 2D drawing it is 60, so length
I will give 60 and radius I will give 6 because our Sheet Metal thickness is of 6mm and in
the inward direction, now we will reverse the direction of our flange
So I will go in inward and say true and will click
So flange direction has been reversed. Same thing we will do on other side
We will select this edge and here we will go, we will say true, radius 6, length 60
So we have made these two flanges. Now we will adapt this R35 here
So again I switch to the part design and this part design I will select at this edge and
I will say select and I will give 35mm. Will say ok
Same way on other side I will select this, I will give 35mm. Ok
So it is saying fail to create the fillet. So I will give 34.999
Ok, now create fillet has been created. And now on this face we will make this cut
We will make this cut. So we will select this face and say sketch
I prefer to draw in isometric view. So I will draw a rectangle here and I require this face
So I will project it and I will select this point and this point and I will select this point
I will select symmetricity then select this point, this point and this axis
So you can see that it is symmetric. So our slot width is 15
So I will select this and I will say horizontal dimension of 15
And I will draw a circle here
And I will delete this line and I will make it tangent with this. Tangent
And then I will clean the geometry
Now this dimension is 35 from center to the edge. So I will select this point and this point and view dimension of 35
So our slot is fully constrained. Now I will close the sketch and I will go for cut
And I will say up to face. I will rotate my model and select this face
I say ok. Now we will make this cut of diameter 25 with PCD 40
So I will select this face and I will convert this arc
And now on this center I will draw of my PCD circle of 40
I will say diameter 40. But this I want as a construction
First we will make this 4 hole then we will make this one
So I will draw a circle. I will say vertical
And then I will say point and line constrained. And here is a 4 hole but I have 6
So I will select diameter and view a diameter of 6. I will close it
Now I will say cut. Up to face. I will select this face
I will say ok. Now I will select my pocket and I will say polar pattern
This pocket has been selected. And here I will select custom reference
And my hole quantity of course. So this 4 holes have been made
And now we will make this cut of the holes. In fact this hole should be adapted after this cut of diameter 25
So no problem. I will select this face and I will convert this arc
Convert this arc. And I will draw a circle of diameter 25. 25
I will say close. And I will say cut. I will say up to face
Say ok. And I forgot to save my part
So I will save it. Now we will make this 4 holes
So for that I will select this face and I will say sketch
I will go to diameter view. And here I will draw a circle
And then I will project this face and this face. I will select these 2 points and give vertical dimension of 10
Same way I will select this and this and give horizontal dimension of 10
And this is the 4 hole of dia 6. So I will select diameter
I will give 6. And I will close it. And I will say cut
I can go per 2 or up to face. But I will go with up to face
I will say ok. Now we want to make pattern in 2 directions
One is horizontal and other is vertical. In 2 directions. So for that we will use this feature known as create multi transform
And here pocket 3 is added. This is our cut. Now I will right click it and I will say linear pattern
And if I see my use here. So I will select this y axis
And here is dimension is 10mm from this side and 10mm from this side
And our total width is 70. So it should be 50. I will give 50
So you can see that it has been patterned horizontally. Now we will do vertical pattern
So same way I will go click on add linear pattern. And this time I will select my z axis
And the pitch between this 2 hole is 25. You can see here
So I will give a dimension 25. Ok. So if you see our machine it is z
So it is not showing. Because we have to reverse the direction
Because we want it minus z. So therefore we will reverse the direction
So now you can see that hole has been added and we will say ok
Now we will make this cut on this surface. This cut. This cut and this cut
So for that I will select this face and I will say sketch
And I require this face therefore I will project it. And then I will create a 3 point arc
I will select 3 point arc. And I will join these 2 points
Now I will draw a line. And I will make it construction
And then I will make it tangent. And here is the dimension 10 from the edge to this tangent line
So I will select these 2 points. And I will give dimension 10
And I will select this point. Sorry I will select this symmetric symbol
And I will select these 2 points and this vertical axis. So you can see it is a symmetric
It is actually moving. Now we will constrain this radius. So radius is 35
If you can see here it is 35. Now our space is fully constrained
You can see here our space is fully constrained. Now I will close it
And I will cut it. And here I will say through all
Now we will make this object 004 this cut on the other side
So for that we will use mirror feature. We will select this mirror
And we will select our axis. Axis plane. So it is got mirrored
Say OK. Now we will make these 2 smart set cut. This one and this one
So it is very easy to do. So we will select this face and say sketch
And here I will select the slot. Now here from center to this axis is 20
So I will select these 2. And I will say dimension 20
And center to center is 20 mm. If you can see here
I will clean my 2D drawing. So that it will be visible
Clearly visible. So here it is 20. So I will here click these 2 points and give dimension 20
But still our space is not fully constrained. Because we do not have given the radius here
So I will select radius and give R6. I switch to the alphanumeric
And you can see our space is fully constrained. We will close it. And we will do cut
And I will say 2. Now same way we will mirror it
And here I will select my plane YZ. So you can see that slot has been mirrored
So this is how we have successfully converted this 2D sheet metal drawing into a 3D solid with FreeCAD
But for the sheet metal. Its flat pattern is very important. Because that is how this part is going to be manufactured on a shop floor
In sheet metal. DXR file is very important. And operator on the shop floor use that DXR file to cut the required sheet
And then it get bended. So how to create this sheet metal part flat pattern
So for that we will switch to the sheet metal workbench. And we will select our base face
Which is this one. And we will click on this unfold. And once you click on it you will get some default settings here
Like manual K factor 0.4. In fact K factor value is a default 0.5
I will change it 0.5. And I will say OK. So you can see that its flat pattern has been created here
This is how a sheet will be cut and it get bent on the shop floor
So I will hide it. So this is the sheet metal. And you can easily export that sheet metal sheet into a DXR file
So that you can give this DXR file at the shop floor and your part will be manufactured
So click on this sheet and click on this export button. And from here select drop down upper cut DXR file
And here I give my DXR file 006. And I save it
And I will show you that DXR file. So I am opening that DXR file in 2D software
So you can see that our flat pattern has been successfully converted into the DXR file
So this is how to model a simple sheet metal part in FreeCAD with sheet metal workbench
I hope you have liked this tutorial and if you love my method of teaching or you want to appreciate my work
Then you can support me on kopahai.com. Its link is given in the video description
And at the same time never forget to like, subscribe and share my video
Your small support will help this channel to grow. I will come with more useful tutorial on FreeCAD
Thank you for watching and thank you for your valuable time