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hello friends welcome to free tutorial
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and in this tutorial we will model this
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flywheel and uh this flywheels also
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having the keyway with a screw for the
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locking and you can see that I have
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already modeled it and it is matching
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with a reference 3D view of our part i
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will show you how you can model this
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part in a Frecad with the help of a part
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workbench for this tutorial I'm using
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the Frecad version 1.0 so you must have
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a Frecad version 1.0 or higher
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version so I will close this file and
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you can also visit my website
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macexus.com where I write articles and
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tutorials on a free CAD and you can also
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access my 3D part library of a free CAD
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you can download the part from here and
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you can use in your projects with
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you can also access my 2D drawing
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library where you can uh download this
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2D drawings and uh you can create 3D
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models with respect to these
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drawings you can also support me on
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coffi.com you can buy me a cup of coffee
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your small support will uh help this
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channels to grow and it will motivate me
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to create more awesome content on uh
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free you can find my Kofi donation page
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link in a video description as well as
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you can also see my Kofi page URL on
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header so let's come back to our
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so here I have created a new file and uh
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I will uh activate my part design
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here I will uh create a body and then
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sketch now here we will uh create our
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first sketch so we will uh create our
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first sketch on a right
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profile means on a right
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plane and here we will create this half
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portion and then we will revolve around
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so we will uh make this sketch symmetric
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so for this I will use the polyline tool
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line and draw the approximate profile
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uh create a rough profile and then we
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will constrain it with the dimensions
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so here you can see that I have created
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a approximate profile and now let's uh
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one so first we will uh add a
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symmetricity constraint to these
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points so click on the symmetricity
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constraint let's uh move our
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icons and now here I will select the
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symmetricity select this point this
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point and this axis and now add a
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dimensions select a smart dimension
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select this point and this point and
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22.5 because this is a 45 and here I am
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giving the radius and
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also constrain the total
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height so select a smart dimension
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select this point and uh this point and
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add a total height of
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127 this is the half of the diameter
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and here this line is horizontal so I
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will select it and uh specify the
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constraint and uh I will move this point
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and let's uh add a symmetricity
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constraint to this point
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so click on the symmetricity select this
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point this point and this axis and uh
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select a smart dimension and uh provide
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uh also make this point symmetric so
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click on the again symmetricity select
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this point this point and this axis so
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now we will provide the angle which is
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of 30° so we will select the smart
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dimension and here I will provide the
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30° and uh this outer one is of uh 25 so
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we will also make this
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symmetric click on the symmetricity
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select this this and this uh
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axis and uh select smart dimension
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select this point this
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point and uh provide the 25 mm and now
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here we can see that uh this height is
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unconstrained so we will fix
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it so this point to this point dimension
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is of 15 mm so select this point and
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this point and provide it a 15 mm now
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you can see that our uh sketch is fully
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constrained let's move the dimension so
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that uh you can clearly see
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it this is a 25 let's move angle to the
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outside this is a 15 and this is of
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9.5 so our sketch is fully constrained
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we will close it press zero for
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isometric and here we will select our
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sketch and click on the revolve and here
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we wanted to revolve around the y-axis
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so here I will select the y-axis or you
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can click on the select reference and
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you can click on your own reference so
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here instead of axis I have selected the
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now let's uh move to the next
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feature which is to create a cut if we
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go to the isometric view so we can see
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cut so we will select the front face and
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and here I will uh click on the project
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geometry and select this
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diameter and from here I will switch to
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the wireframe and once you rotate it you
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it and now here I will uh create a
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circle and I will select this created
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circle and this projected diameter and
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now we will create one more
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circle and uh select a smart dimension
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and provide this diameter of uh
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218 you can cross check this dimension
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drawing and now I will close
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it and let's switch to the flat lines
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view and now we will select the sketch
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and uh create a cut off of 5 mm select
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the sketch click on the
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mm now let's move to the drawing view so
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now the cut we have created here is the
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same on the other side so we will mirror
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this so click on this pocket and click
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on the mirror and from here select the
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reference and select this exit
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plane so you can see that our cut is got
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mirror on the both the side and say
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okay now let's uh save our part
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now we will move to the next
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feature which is if you see here in a
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main view of drawing so here is a cut
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whose profile is given
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here so this is a 29 and uh this is the
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R95 this is R10 so we will add this
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radius later first we will create a cut
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so here I have a selected a face and
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click on the sketch and for right
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orientation press zero so we will make
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normal and we will create this cut so
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let's switch to the wireframe
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view and let's h create a threepoint
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arc select threepoint arc and uh create
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a arc and now here I will select this
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point and this point and add a
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coincidence and this uh radius is of 32
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so I will select smart dimension and uh
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32 and here I will create one more
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radius and I will join the points so
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from here select the one more radius and
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select the points and uh add a
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constraint now the outer radius is of
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R95 which we can see here so we will
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select a smart dimension and uh make it
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R 95 now we will move this radius point
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and select a line tool and uh close our
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profile and now we will give the
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29° so we will give the
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29 and this one will
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it and now let's see what is the
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unconstraint so we can see that
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uh angle is uh given but it is not
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constant because this center point is
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not defined so we will uh click on the
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tool and uh we will make this line as a
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construction line and we will select
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this line and this line and uh give the
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constraint same way we will uh move this
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point and uh create a line which will
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pass from this center to this point and
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uh we will also make it a construction
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and now select this point and this point
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by pressing the control key and add a
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parallel D so here our uh sketch is
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constrained let's move the
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dimensions and close it
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now we will select our sketch and click
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pocket and we will say it true all and
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okay so our cut is created and now here
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is a fillet of R10 so we will add a
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fillet of R10 to the all four corners of
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our cut so click on the fillet tool and
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edge and uh select this edge so once you
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click on the edge it is added here and
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you can remove any edges by clicking on
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remove now select all the four
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edges and here fillet we wanted to give
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okay so you can see that uh fillet is uh
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now we will uh provide one more
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fillet and uh we will polar pattern it
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so if we go in a side view so here we
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can see the fillet of
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R3 so we will click on the fillet and
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provide the value R3 and uh select this
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edge and this bottom edge and say
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okay so you can see that
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uh fillet is created now we will uh
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polar pattern this all three pocket
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there are the two fillet one is of R10
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and this one is of R3 now click on the
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pattern and here we will uh define our
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axis so be patient uh if free CAD takes
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some time now here uh you can see that
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y-axis is automatically selected and
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number of uh instances I will give the
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four there are the four cuts and uh say
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okay so here is a free is recalculating
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patience so you can see that the fread
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recalculated it and uh transformation is
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okay now there is a keyway
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profile on our flywheel and whose detail
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here so now we will select this face and
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uh create this keyway profile let's uh
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first and here I will press my zero for
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isometric view and we will select the
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face and click on the
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here we see this front inverted
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so for better orientation press zero and
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we want to create the keyway in this way
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so we will make this front cube normal
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and now here I will uh create a
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circle and uh I will create a rectangle
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here and I will delete this horizontal
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line and I will use the trim tool to
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remove the unnecessary geometry select
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this age this age and also remove this
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arc so this is the profile and the here
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is the width of a key is 6 mm so we have
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to make this symmetric click on the
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symmetricity select this point this
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point and this axis select a smart
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dimension and uh give it a 6 mm and here
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height is given is of
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22 so we will select a line tool and uh
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a horizontal line select uh this and
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this and add a coincidence select this
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and this and add a tangent select this
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horizontal line and make it construction
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and now we will select a smart dimension
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select this point and uh this point and
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here we will add a dimensions
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and define the diameter diameter is of
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here radius we are defining so we will
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give it 10 and this you can see here
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now we have a fully constrained sketch
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total height 20 and uh this is the
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diameter 20 now we will uh close
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it and uh we will select the sketch and
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cut and from here we will say it true
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now here is a screw detail is given and
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if we move here we can see is detail uh
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M4 and uh this screw is on the this
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diameter surface so we will create a
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DATM plane at a distance of 22.5 so we
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will select this top plane and here you
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will get options create a data plane and
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22.5 and we will switch to this front
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face so we can clearly see that a
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created and let's uh off the origin
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plane and we will create our whole
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sketch on this plane so here is a
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rebuilt options click on recomputee
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select the data plane and click on the
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here we will project this edge click on
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the project geometry and uh project it
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and here click on the circle and create
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a circle on this axis and select a smart
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dimensions and uh this is of M4 so we
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will create a diameter 4 sketch and
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position is of 8 mm from the H so we
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will select this age and this diameter
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and provide the 8 mm now we will close
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it and we will hide this data plane and
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we will select this sketch and click on
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wizard and in a whole wizard we will
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parameter so here we will select the
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here I will define the dimensions 12
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threaded and we will uh keep the class
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as it is and set it to the right hand
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and here select the counter
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sync and uh now you will see the options
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8 diameter 8 and depth we will set
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okay now we will switch to the right
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view and uh from here we will uh switch
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wireframe so you can see that
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uh cut is created here and
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now let's switch to the flat line so
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this diameter is very small so we will
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uh edit our hole and we will see what
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isometric regular profile is there and
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class which is uh it took the
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M1 so let's select a isometric regular
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profile and from here in a drop-down
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M4 because there is a tapping of M4 and
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okay now here uh angle is given a 90°
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and this is of 8 mm so if this uh depth
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is looking too much then we can also
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customize it from here and uh instead
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diameter we will give the 8 mm and uh
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for the depth is a 90° given and uh
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let's control the depth with a
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0.5 okay so keep as it is because if we
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give the depth then this is increasing
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so we will keep it as a 8 mm and we will
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zero and we will say
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okay so this is completes our model and
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uh you can see that we have uh
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successfully converted it and uh there
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are some minor details which uh you can
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provide like uh chamfer is of 1 mm c1 C1
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is given on the both the edges so I will
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uh select it and give the
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chamfer 1 mm say okay
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now press zero so this completes our
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model and it is matching with our
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view if we switch it to the right
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orientation so you can see that it is a
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perfectly matching so this tutorial is
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designed for the beginner user and uh in
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this tutorial we have learned so many
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tools like uh mirror polar pattern
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template jumper fillet etc so this is
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all about this tutorial how to model
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flywheel in a free CAD thank you for
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watching and thank you for your valuable