Why is my CAD model not smooth in the middle?

help so you've created the model with surface modeling techniques and then you want to mirror it but at the middle of the surface you get a ugly Edge or seam and this video shows you why this is and how to fix it very quickly and the following lesson is just one module out of my new free surface modeling introduction course for beginners and this course covers all the basics and fundamentals ensuring you excel in surface modeling starting with EXP planning nervs and Cat you will dive into the key principles of continuity and tangency through Hands-On exercises you will Master surface modeling techniques by modeling objects like a shampoo bottle and cylinder connections Additionally you will get a mindset training to tackle complex projects and solve common problems like smoothing surfaces and working with Lofts and as a grand final there's a special section on how to model a product design from scratch with all the learnings so enroll in this free course today and start your journey in surface modeling with plasticity so check out the first link in the description box next to the video and now let's dive in into this tutorial okay so why are surfaces not smooth again below this video downloads the file and here in the first group I've prepared so if you also check out here the mouse so just that you have an idea so very simple mouse I've prepared here a little bit right so those are the reference images not so important so then you come at the point so where you have to create so as this mouse at the top like this nice smooth connection where your hand rests right so you come to this point but again it can be anything because I over and over and over and over see this mistake that beginners do and it can happen in every instance but again so here is the middle right so I just created this part and I've mirrored that over right so now I want to create the smooth surface at the top so what I'm doing I just again I just need to create so basically I don't need even this half so I select this curve and just this Edge and I LOF it and you see it's smooth here it's G1 because I've set up everything correctly so that works and you see everything looks fine perfect so why I'm showing you that yeah because now so if we delete this curve and if we select both surfaces and ALT X and bring to the other side it still looks good but then you disable the edges and then you have your nightmare and you have this absolute ugly uh seam in the Middle where you use tangency and you saw that looked straight and correct so again if you go here it looks straight and correct but if you bring it to the other side it doesn't and this is very very often the case again as I said beginner forget it especially if you work with one Hales as we always should with surface modeling in most cases so what was the problem the problem was is what I told you in all of my previous modules is that if we want to create tangency a smooth surface around the center we always have to extrude this curve because look if I select the curve and the edge and Loft it here on the edge we have the control if I want g0 or G1 in this instance G1 but the curve doesn't give us information how it doesn't know in which direction to go right because the curve is just like onedimensional kind of so again you have to always because this is in the middle you have to first extrude this curve and now you have the supporting phase but now again extremely important so if you would just love this again you still don't have this information why because you forgot to delete this curve so always you have to delete Le the curve first so you have a black Edge because now from edge to edge Loft and now you see you can use G1 okay press okay delete this middle piece and now let's select everything alt X and bring to the other side and shift e hide edges and you see now okay it's not perfect here because that was just a quick example but it's smooth at the top again it's not perfect it's just to illustrate you that but you always have to extrude um a curve when you work with symmetry or symmetric object and you want a curved face around the middle yeah and if you found that lesson helpful and you want to learn more about surface modeling check out my free course with over 40 modules explaining everything about surface modeling that you need as a beginner so sign up today with the first link in the description box next to the video and I hope I can see you in there have a nice day bye

Channel: Nikita Kapustin

Views: 753

Keywords: plasticity, plasticity 3d, plasticity course, surface modeling, surface modeling tutorial, plasticity surface, plasticity product design, 3d modeling tutorial, nick kallen, nikita, kapustin, 3d modeling software for artists, software for cad designers, cad modeling tutorial, hard surface, hard surface modeling, hard surface design, hard surface tutorial, product modeling, product tutorial, cgi, 3d, modeling, tutorial, product design, plasticity accelerator, cad, exercise, not smooth

Id: vD4CEUx-Mrg

Length: 5min 35sec (335 seconds)

Published: Wed Jul 03 2024