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hello designers and designers I'm paul and welcome to another video of this
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intermediate course recently in x in today's video we are going to make this spur gear
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we are also going to learn the symmetry function so what have you done until the end to see how
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we are going to do it step by step we are going to do this gear in two steps the first step we are going
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to draw a tooth applying the symmetry function then we will apply extrusion and we will also apply
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the pattern figure to make all the teeth of the gear and the second step will be to draw this
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hole there with this slot that will also be for the Reinares key have recent straight ag I am going
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to use these formulas and I have taken them from a book that you can use for your work
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I am going to explain this exercise and to do this exercise which is an example I have taken
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some already defined data that is z 25 the teeth and the module of 3 with our data the light is
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put into these formulas and these formulas m These results are given and with these results
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we are going to draw this spur gear This model
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can be used for your work I wanted to comment that this coupé is not for this
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information and the plan and the table with the formulas and others because in the last video of
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this intermediate course of sbs mx in the description leave a link that will take you to my blog and you will be able to
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download a pdf with all the plans of the pieces that we are going to make in this course since
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I am going to leave this to you now like this commented all this we are going to start making this gear
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with teeth challenges we are going to do it to carry out this example I am going to start with the data z which
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is 25 is the number of teeth and it will have a very 3 drawing estella outer meter starting here
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and then we will draw the time is 30 and these data come out of the table so that we go here
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81 and 7 ok we are going to start drawing these two data we come here we click on sketch we
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select plane efe a clip and we accept we click on it circle we click there in the
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center and we draw a circle now we are going to cut it we are going to escape on [ __ ] we put 231
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and he cut we have entered the dimension a little better we finish the sketch we click on destroy
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if we make this curve the one we have drawn and we put 30 enter and we accept we are going to draw
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these three outer diameters of red and blue and the inner diameter is and what values are
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these 3 diameters going to have in the table and we see that the inner diameter 81
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primitive diameter 75 and the inner diameter 68 we were there we click on clovis and select this face
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the master supply and we accept and here we are going to draw the 30 meters said the circle I click in the center
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I draw this circle now I am going to count it
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1 and I close again I draw that diameter
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25 enter they did and for last skewer there I draw this book and now I look for the drop
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now modifying w I put 68 and close and stay like this we are going to draw what is called the
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pressure angle we will draw a line do not have Let's say another one and we will cut it to integrated because at
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15 degrees because for each z remember z number of teeth corresponds to a certain pressure angle
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means that for a contest of 25 as this example corresponds to an acute 15
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for a zeta of 30 another angle and a small detail will correspond to it we will pull from here
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a line of 90 degrees with respect to this line as the pointer goes now we click on line we click
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there in the center and we have a vertical like this we are going to escape we click on line again we go there and
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we throw the line for example so we give escape we are going to delimit the angle between these two lines
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for it we come here angular quota we touch that line and that other and messages angle is
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15 programming the 15 of mind and we close the diameter we allow this okay we click on line
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we activate if you don't have this intersection button activated it's okay for it to take me there I click
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there right there it's okay for me to draw a line at 90 for example up to there
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a lot in a circle it paints and it has a circle until it ends there
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and I stay like
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this once here we are going to cut for it we click on quick cut
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we touch there
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this line we are going to see this is and these are also this is outside is also is this is this is
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this too and this year I will also
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close this and I will stay like this now I am going to draw the cee it is worth the 13 which is the width of the tooth
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this is the step in red color and this is the thickness of the tooth and I draw this
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dashed line in the color dots because I am going to divide the value in half and achieve symmetry because
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I have already drawn this red line before and since I know these values, I come to the table
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and see here step 9 with 42 teeth thickness at 4.71 and space between teeth that is 4.71
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this value is the one that joins by means of two to make the symmetry later I was here it brought me
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a little closer I click on line and you see here here at this point where the mouse pointer hangs
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there is a clip and some line as well as bringing them and I'm going to put 4.7 1 between two that are two one
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355 is the number and inter and a click and it has already caught me I escaped and I held on a little
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now I keep moving away from the line I click there and it has a line up to this corner you see until there
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I close aysén welcomes He has already caught me and now he extended it to this line to the top
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with this quick extension there is a touch and true and I stay like this we are going to apply the symmetry function
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we go down to the bottom and it is this here symmetry curve let's see a clip and if it takes off this menu
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first step select the curve we select this curve and select the central line you see
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we select this and you see automatically it already gives me another one symmetrical to this one and I accept
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we are going to draw the radius of the gear this here and its value
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the radius 09
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we find here we puncture there fillet we play here and here you see me
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this radius is exposed we put but with 90 and here the same
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but with one of them we have this we start here we are going to cut everything we puncture whoever
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cuts the skin and we are careful We can finish this line this also
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we can eliminate this also this this this is also this and is all
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also this also handled a little to see if there is any close this and ended sketch
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now moved away the piece a little by clicking here in that matter
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I am going to destroy what he has drawn sketch 3 is okay for this right button
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and extreme you can also go here and click on this
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in this direction in the other double click and I put here subtract and I accept center a little this
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I come here I click figure of pattern peels off this menu first step select
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the figure select there I can here or here ok second happened here in layout put circular
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if you have something else circular specifically
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we are going to select the perimeter ok this this part count 25 this is z the number
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of teeth in our in our example it was 25 and I'm here pitch angle
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this data comes from dividing 360 degrees between 25 and 14 with 4 once I have everything like this I'm going to accept and
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that's it I cast the slope gear, the rest is 625 teeth and the shape that it had flat, now it would be necessary
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to draw a hole here in the center, wet a radius of 25 and then we are going to destroy it at 3,
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click on sketch, celebrate this channel in this one and accept,
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click on circle, click there and we draw a circle and now we are going to limit it
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escape above the dimension and we impose 50 and you enter and close we are here to
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accept it and we click on destroy in this direction not in the other and we put 3 150
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and we remove it and now we're going to make a radius of 12.5 we're going to draw a
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horizontal line of 13 5 and with a width of 4 this will be for the key
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we were there we click on drugs and we select this face and we accept we
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click on circle and we draw a circle we're going to count it
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and we will we put 25 in diameter and we were drawing an end
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line
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and if I draw another line here
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I suppose it explains
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and king and then another with another line and the quota remember that this was 2 and 2 4 width we can
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and the iron and the height is it was 13.5 draw a line and the photo apc with 5 and close
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and trauma lines
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and now own
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when this happens to you react this line is your first and we see the process we paint online
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and shoot with a horizontal line and the same here
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and shoot another horizontal line will arrive we are going to cut everything we
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click here on quick cut we touch this this we do not remove that also this this line
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is
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these two we can delete this one too and states also
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sometimes lets them delete and this one too once we have this so we finish the sketch
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one Once here we are going to destroy, click on the star and select what we have just
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drawn, it is this part in this direction, not double vip and in the other
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and finish here until the next one, everything is fine and we accept
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and see how it has not left it, we enter a We would need to do little in this one, which
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was also a circumference with a radius of 12.5, and destroy it, we are going to do it, click on the sketch
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, select this clear one and accept, click here on
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the circle, click in the center and we draw that double circumference if we put 50
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and we are going to destroy it we finish our proxies we click on destroy we select
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this circumstance in this direction in the other I put 3 and accept and now we
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would have the two clear ones we enter a little and we are going to round off this list with a king of 1
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and remember its channel fruit to support it we click here for edge audio and we touch this edge and
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this other and we put line 1 and we accept we enter a little and now we are going to clean up the drawing a little
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to it right button and we hide this system I think that only also right button and we hide
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with right and we hide this one also right button and we hide 8 also right button and we approach
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and this also remained right button and hide we leave the drawing clean
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and now we would need to change the color for this we come here in edit view we
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select this object we accept and we are going to put this color in the other one
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but you can put the one you want this now already to your liking we accept
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and this would be the one on the living journey straight to comment that also if you want to
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try other progress you may like to come here to shade it is a little more realistic
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or more a realistic degree that you also have materials that made it hard
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Well, you can choose when you try which one you like and you see the combination of colors.
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I'm going to let it
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be
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on my side. This has been all. Don't hesitate to tell me if you found it easy or difficult.
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Share it with your friends . give in his work remember
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to subscribe to grant to support him my name is paul and see you in the next video
