SOLIDWORKS World 2018 Model Mania - SOLIDWORKS

so this is our part for model mania 2018 you can see it kind of looks like a yoke of some sort it's got a cylindrical boss at the top and a couple of legs or fingers hanging down on the side and then a 10 millimeter hole that runs through it so let's go ahead and take a look at how we would approach modeling this so let's start on the front plane and I'll get out to get the basic shape of my design out I'm going to start by drawing a construction line this is going to be 40 millimeters vertical and then we'll add a couple of circles 48 which is 24 times 2 and then 22 which is 11 times 2 as indicated on the drawing then we're going to draw down those legs or our fingers that hang down the side close them up and then capture the tangency as we sketch that I'm going to add a dimension to define that draft on the outside finger that's going to be 7 degrees and then we'll mirror this to the other side so once we have that all mirrored I'm going to hold down the Alt key and ctrl and then select those contours and go ahead and extrude this about the mid plane and we'll just pull this out now I don't know what the depth is I'm just going to make this 40 millimeters at this time at this point because we're going to cut some material away so I'll pick up the silhouette edge at the top transition down and then just by moving my mouse back to the original point I can transition into a tangent arc then we'll add a vertical centerline and I'm just going to drag this down onto the origin and that actually establishes my symmetry from my design so we'll make this two degrees the draft is indicated on the drawing and then we'll add a 10 millimeter circle in there add another dimension here at the bottom this is going to be 10 millimeters and our sketch is fully defined now we're going to cut some material way we're going to go through all both sides and then flip the side to cut that's going to cut material way on the outside and there we have the overall shape so on the top plane I'm going to sketch a circle this is going to be 26 actually two circles and 18 this is going to define that cylindrical boss that we have in there and we'll go ahead and extrude this I'm going to choose the from option and choose an offset of 67 millimeters reverse the direction and then let's try up the surface and choose that inside surface so that's not going to work because our boss is larger than that inside surface so I'm going to choose up the vertex and that will establish sums parametric's in my model instead of just putting a blind dimension on there I'm going to reuse that sketch to cut that material way at the top and this is gonna go through all select the contour and we'll choose that inside contour reverse the direction go through everything that cuts that material way now we're going to need to remove the extra material created by the boss so I'm going to create a plant sketch on the front plane and convert those to selected entity edges into sketch geometry extrude this through all both directions and it just cuts that material way for us finally we need to add fill its so I'm just going to go ahead and add fill it's on to my model these are going to be two millimeters all I need to do is choose those two faces and SolidWorks wraps all those fill its all the way around now this isn't necessary I like to do it just for visual purposes change the color of the fill it that helps me visualize and see that that fill it has been applied all around and the last thing we do is we apply the material which is plain carbon steel so that's the first part of monomania 2018 or what we call phase one what we do next is you're then given a drawing to make changes to the same model so this is the phase two drawing here you can see if we look at the two views on the left you see some offsets of five millimeters that indicates to me that maybe we try shell there and also in that center view you the lower center view you can see that the there the 11 millimeter radius needs to move down to 32 we also ask you to run a simulation so you can use all our simulation or simulation Express we've defined where you in the upper right hand corner there you can see that we've defined where you hold the model and where you apply the load and how much load to apply so let's go ahead and take a look at how we'd approach doing phase two the first thing we might want to try is to edit our first sketch and if we go in there you can see that those two circles were drawn using the same center point so those points are merged and can't be broken so we're gonna need to figure out another way an easy way to do this is to use the move face feature so I'm gonna roll back in the tree choose that face and just hit the move face button drag that down eight millimeters that gives us 32 for the centered distance to the bottom for that particular hole I mentioned Chell earlier might be a great opportunity to use shell to get our five millimeter offsets so moki and five millimeters for that and that takes care of creating all those offsets for us now all we need to do is roll down and see how the rest of our model behaves everything looks pretty good and finally deal with our fill it's so in this case here there's a lot of additional edges that have been identified through that shell so I'm just gonna choose to fill it the shell feature that's a very powerful tool in SolidWorks and it's been there for quite a while is but it's really pretty powerful and it gives you a quick and easy way to get all the edges associated with that shell feature it's pretty nice next we ask you to have run a simulation so we'll just create a new simulation it's just going to be a static study and then we define our fixtures so the fixtures is defined on the drawing are going to be those two lower cylindrical holes go ahead and accept those and then we need to define our load which is going to be a vertical force on the cylindrical face at the top and it's going to find the direction to be vertical find by that top face there's going to be 10,000 Newton's so loads to find material defined boundary conditions to find last thing we need to do is to run our simulation so all our work solves that it's not necessary but I always like to just run an animation of a stress plot or a deflection plot and that helps me understand is the model behaving its expected in this case yeah and then all we asked for is what is the factor of safety in this case about 2.8 so there you have it monomania 2018

Channel: SOLIDWORKS

Views: 35,274

Keywords: solidworks, 3D CAD, Dassault Systemes, Mechanical CAD, mechanical engineering, model mania, SOLIDWORKS, SOLIDWORKS2018, 3dexperience, design, CAD, CAD design, Solidworks projects, solidworks cad, solidworks videos, Solidworks designers, Solidworks engineers, CAD makers, solidworks world, sww2018, solidworks world 2018, design challenge, model mania challenge, model mania solution

Id: igU9xOsRC0w

Length: 6min 21sec (381 seconds)

Published: Fri Mar 16 2018