So, hi guys hope you're doing good. So, welcome to the next lecture, next lecture of the course a quick guide for the Katia part design module. In the earlier section we have finished learning how to apply pad pocket and hole commands or features to existing a three dimensional component or three dimensional body whatever it is. Now, in this course, we will study or we will learn how to apply the shaft grew rib and slot features one by one. So, I'm already here the keyboard my laptop is hot and ready with the part design module of category five. Now, let us start the by the feature shaft in Katia.

I mean to say that Say I am going to rotate a particular planar planar object or planar curve close to planar curve around a particular axis to have a particular solid. So, let me explain you through the example, say I am selecting YZ plane and going to sketcher no say some arbitrary profile, some arbitrary profile it may be anything if you have any diagram given questioning, you can draw accordingly here for the purpose of making you understand the concept, I am trying to give you an example just an example. Now, this is a profile which I want to revolve around a particular axis. Now, I have to define axis also in this here in this sketch or module only. So, we already knew in profile section Along with the polyline that is profile rectangles circles etc There is an option called axis. So, we have to select this and draw the axis wherever about which we want to rotate this particular object then we will get us solid.

So, exit workbench now, now this is a profile right and here we have an access it will be automatically highlighted when we try to select the access option. Now, apply the shaft option there observe here So, it is asking for 360 degrees or or to what extent that revolution or rotation should be there shaft rotation. Say for example, it is 360 degrees you are giving 360 degree rotation here this is our actual plane this one which is in white and orange patches Patra line So, from that, say for example, limit two is here. So, one direction will be second angle, one direction will be first angle. So 360 degree. Now, for suppose, if I make it as 180 degree, then take a preview.

So, here in limit to one first angle is monitor degree from this preview in clockwise 180 degree angle is rotated. Now, for suppose said this is 90 degrees and second angle is also 90 degrees. Then again another preview see in clockwise 90 degrees in anti clockwise 90 degrees So, limit one limit to two. So, depending on what way you want and what N word with what limits you want the solid to be general You can give the limits there further revolution. So, access is automatically selected. So, I will tell you the criticality if I didn't mention the axis for Edit Mode go back to the sketcher that one now deleting or removing this axis.

Now, first of all, if you just redraw the profile and exit the workbench and now if you try to share a role, then see here that access it is asking to select the axis until and unless we select the axis we cannot hide it is OK button will not be highlighted and until and unless this is not highlighted, or until and unless this is highlighted, we cannot apply this chapter definition. So, select if we don't do have we didn't draw the axis in the earlier stage in the sketch itself. We can at least hear for this situation in this situation. Fortunately, we have this word V axis. So, even if we started this as our reference axis, this absolute axis still weak it will automatically take rotation of this particular profile in 360 degrees. If you want to select 90 degrees it's fine first limit limit in clockwise direction is 90 degrees okay.

Or you want to still change this limit to here is showing direction series The limit to this one is limit two. So limit means limit one will be in this direction clockwise. So, zeros zero degrees to 90 degrees sorry this is actually this time it is taking the direction as this one. So, God it is anti clockwise direction. So, first angle as per the axis that we have chosen, this direction depends So, he Stelling This is the original direction this main direction refers to the first angle actually. So, limit one has gone from this zero degrees to 90 degrees limit two has stayed there itself.

Now, in limit two if we fix 90 degrees errors 45 degrees, see that this limited two line will come to 45 degree and opposite direction in the reverse direction that is here in this situation it is clockwise. So, observe here, so limited to is coming 45 degrees clockwise. So, this this is this is the direction you need to take. First example say first angle direction you want in clockwise and second angle direction you want an anti clockwise just reverse the directions right then first angle you have taken it as 90 degrees second angle you have taken it as 5045 degrees, this time, this arrow is in clockwise about discipline. So, making to rotate this particular profile in clockwise direction is the first angle opposite will be the second second angle is 45 degrees first angle is 90 degrees, if you make a review you will get like this.

So, depends how you want from what angle to what angle you want all those things. Generally if 360 degrees 360 degree rotation is followed on the first angle is rewarded whatever you want. Most of the cases generally that is what it is for we follow it is very rare that we require both the angles to be defined at least at undergraduate levels. So, I just try to give give you an idea but describing both first angle and second angle in the shaft cases. Now, this is what is revolved Sorry shaft in many of the socket software's This is called revolve option here it is shaft. Now, you need to make it grew from this definition this symbolic definition itself it is clear that on the periphery on the periphery of a circular entity, you are trying to make a pocket material removal along the periphery right.

So, in a circular fashion. So, for example, the glue shape may be anything that need not be circular again that may be rectangular glue that may be a circular glue anything, but it will be along the periphery of a circle. Let me show you say for example, anyone playing a solid vertical plane this the hearsay display top surface or bottom surface whichever entity that is xy plane, so, that is not suitable for guru guru can be done guru can be applied on this vertical either jet plane or jet explain. So, either one you said vertical plane I am selecting say for example Jetix and go to sketch at first we need to have a sketch to be able to apply guru option. So, say for example, I am trying to have two gurus, one at this position of some arbitrary size, you can always fix the dimensions by just clicking here and applying it Say for example, in this situation I'm trying to apply 10 degree 10 mm also say for example, from the top surface, this one is just fireman distance below that is one simultaneously I want another guru as well.

With the same angular definition will be same for this one and this one that means Limit one and limit two angles will be same that is the case then simultaneously I can draw the two profiles here. So, otherwise I have to individually apply groups separately one after the another if the angular definitions change, you understand it shortly. So, this is one part say another on is a circular group which I want such that the center falls on this edge or the surface periphery half will try to remove the meter other half is in space in air. That means, I want a hennis cylindrical group so, exit the workbench. Now, actually those groups are on that side you can always adjust this to have a proper appearance from your side. Now, you tried Eazy E this grou option is highlighted now, when you apply It it will ask about which axis now, since you are trying to apply this around this periphery, then axis will be the axis of the cylinder.

Once you apply that, see this group by default it is taken 360 degree for first time, what is the first angle direction this one this one So, anti clockwise. So, for example, if you make it as 90 degrees, then you make a preview and observe that grows or something like this. So, for example, if I click OK, then observe here this is a rectangular top one rectangle grew along the circumference of this cylindrical part This minute, another below bottom one is a Hemi Salah, cylindrical group, Hemi cylinder not complete cylindrical, it is a cylindrical half cylinder. So, how similar is cylindrical group which is a spanning from G zero degrees to 90 degrees both this group this group and this group both are spanning from zero degrees to 90 degree. Say for example, you want this group to span from zero degree to 90 and this grew from zero degree to 45 degrees only, then you have to first apply the screw and later then again you have to separately draw it's a sketch and then apply its angle.

Apply the limits for this group angle one and second angle. It since here in this case I have drawn profiles for both these groups simultaneously. I cannot individually assign different angles Learning spans both will span from zero degrees to same levels right. So, for example, if you want another group which will span less or more even you can see directly even if I want to change if I select one group automatically other group will be selected. The reason is that the profiles the circular profile and this rectangular profiles I have drawn simultaneously. So, if you want another group separate group which spans 145 degrees or 360 degrees for example, then again select this widget or jet explain whichever is okay whichever is it is okay.

Go to sketcher now draws our example I want a rectangular group somewhere in between say, Now exit workbench. Now, I want to do this throughout 360 degrees. It will ask me it is by default is taking the earlier value now I will give you 360 degrees to the 60 degrees. Now, since axis is not selected I want to set to the axis that it will it is taking this time it is taking clockwise direction here to focus on this arrow mark. Now, if you want this to be reverse direction automatically angle will be changed. So, here it is 180 degrees notice it's previous sorry.

So, I actually started this profile as crew no sorry this profile has to be selected as crew. Now go to blue option Select this profile so, it is not selected. So, okay sorry I had to go here and then select sketch three selected Now access this one now i direction is in this direction now I want it in a reverse direction right now accesses reverse direction I want it expanded in 180 degrees to one or two degrees from zero degrees to 180 degrees apply okay observe here. So, when you draw profile separately for gross see this single entity can be selected but in the case of top and lower must Roos individually they cannot be selected because profiles are this both reference the circular and this rectangular both come under a single sketch that is a sketch right. They are getting highlighted to see but in green to case on a single entities selected Because that sketch only one sketch a one group related profiler Hebron.

So, this is what about shaft and crew options. Now let us look for rip and slot options now let us take a new part. So, we will go to the part design selected Okay. Now this is open part design module is open now, what is rib actually? So, I will explain you with an example, say there is a particular profile in certain planes a jet explain let us draw the profile contour of the defines the contour of the ref say we want circular. So, let us define a circle and go out of it.

Now, we will draw this circular profile in a particular plane which is perpendicular to the cross section along that drawing or sweeping off this circle will be along the curve that curve will be on a plane which is perpendicular to this area of cross section, this is injured explain, then we have to select y direction, y direction means, here this direction this is defined by this in this plane actually, specifically, so, y Jetix now, this is y Zed if you select that, go to Scripture or you can even select xy also but now presently I have selected wiser now, this is the circular profile here it is in this view, it is appearing as a line because it is a perpendicular or orthogonal plane for x jet sorry Jad x disappears in jet x now we are coming by jet so that's way since they are orthogonal to each other, it's projection on circles projection on why jet will be aligned.

Now, from this take a spline For example, this is the curve that defines the direction in which river has to be drawn or swept. So this is circular for file. That's it. Now, I want to end this spline here. Now this circular profile will be swept along this curve as a rib. See, now I will select the option for him.

Now observe here which profile or which contour Do you want to rip. I want to contour this profile. Now center That is the car along which this contour has to be swept. So, this is that center Kuru Okay. Now, just have a preview. So, I think you are clear depending on the spline define this curve will get generated smoothness or peaks will be here it is smooth because a spline or center curve is smooth at this situation in this location the center center curve that spline I defined was rough with with a sudden change in its curvature accordingly, the curvature of this three dimensional contour also is sudden changes in the contour is sudden.

So, observe this right so, that is regarding rim Now slot slot is generally grooves or peripheral slot you can say same kind of rebuttal is material addition of a particular contour in a particular direction along a particular curve. groove means some or not grew slot slot means material removal not material addition just opposite of material removal of a particular contour along a particular curve or particular direction, I will tell you that I also say for example, you want to have a group or sorry slot internally along this particular profile, like a keyway in missionary. Now, for example, I'm selecting this surface because on this surface onwards, that particular slot has to be created. This has to be a reference for example, say or I can send this contour also present time selecting this one. Now go to sketcher it is highly zoomed in position. So, let us fit to the screen.

Now on the circle at the desired position you can draw profile. If you don't want surgery if you want a slot of rectangular shape, you can even draw a rectangular shaped slot. Now that contour of that slot slot will be rectangle right. Now, you have drawn this profile profile or contour of the slot. Now, you can apply a slot see sketch three that is profile for this slot, this is a sketch three. Now it is asking for center curve.

So, since we didn't draw a separate center again, which curve it should follow that I can select from here direct That center curve was in a rib, it was sketch to that same thing I am applying for this also. Okay It is showing us some warming because of this particular thing. So, let us drag it to the center and again try to apply. So, let's try again cancel here I will double selected sketch, modify the sketch and otherwise multi delete this rectangle, we will try to have a same rectangular group but with the center 10s So that we can set up the center of the rectangle and align it with the or make it concentric with the circular contour. So, this is the rectangle, let us reduce the dimensions. So, this is actually 20 solid 1010 by 10 Square group so the square slot now let its center be concentric with this, so, I'm selecting the center of the rectangle, hold the Ctrl key select this contour a circle and apply this constraint box here you apply for concentricity apply Okay.

Now the curve will be this rectangular slot contour slot of rectangle contour can be applied. Now you try to apply the slot option So, Cassandra, let us select the sketch to now see okay. Observe here. So, earlier the mistake I did was this rectangle the slot positioning was wrong now that I have adjusted the position making it align our proper align properly aligned with respect to this our external contour. Now, observe here a slot is made internally from this side to this side along the same curve, which was passing through I made a slot for suppose, if you don't if you want this a slot not here, but somewhere here, then profile you have to draw here itself, but the curve we have to define again one more time which will be different from the audience sketch to when you are trying to Take sketch two as the center line when you're trying to take sketch to a center curve for this particular slot, then that profile must be centered like this about this center otherwise gnarlier place like I try to take this a center, but I draw by drew this rectangle somewhere here, we got a particular error prompt.

So, that we don't require right. So, we have to be careful which center we are using, what is the external control grew slot by the term slot I meant the internal kivus or internal material removal. So then at no point that curve center for that particular slot should touch this external periphery. Otherwise, again, we will get an error prompt. Okay, so that is all about this slot pocket, sorry rim slot axis as our shaft and grew. Now, with this I have completed pad command, pocket, shaft grew, hole, rib, and slot.

Hope you're clear with the concepts for any queries. Please post your comments and ask the questions frankly. Thank you