Really insightful video! As someone who enjoys seeing car parts being modeled, I'm definitely inspired to try out 3D sketching. It seems like a fantastic tool for conveying design intent more effectively, especially in automotive design. Can't wait to see how it enhances my workflow. 👍
Yeah, that's true. And not just automotive. Anything requiring piping, ducting or wire harness design should be done with 3D sketches. Easier, more powerful, and ultimately makes more sense to do it that way Thanks for watching and commenting and if you need any help with it, hit me up here or in the forums.
13:32 WOW! That's pretty powerful stuff. I probably would've designed the complete shape from one sketch like you said you didn't want to do, and it's up for debate which method would take more time, but removing faces like that and Alibre knowing what to do with it is really cool!
Yeah direct editing is extremely powerful, and Alibre is, usually, pretty good at getting the design intent right. More so than other programs that might actually have more direct editing tools than it. Thanks for watching and thanks ofr the comment, m8!
Thanks man, glad you like it! Check out my newest video on 3D sketching. It'll get you up and running with 3D sketching and making complex geometries in no time
Seems like an exhaust manifold from a classic Mini! If you add two more pipes it might just seem half the manifold of a serious engine... (you know what i meen)😆I'll try modeling this in solidworks and i think that i can manage! Keep up the good work!
Lol, Great comment! I thought it looked like the manifold from an old Alfa Romeo Boxer 4. But I guess those curved more. Anyway, thanks for the comment. By the way, get Alibre. SOLIDWORKS is overpriced 😅😉😄 P.S. Now I got it, you mean a V8. 😂 Someday I should try to model a "Bundle of snakes" type manifold. Like from the GT40
That's good but, how do you do a set of headers where the only fixed requirements are the head layout, the end point, tube size and the *tube length* where the tube lengths must all be the same? How do you ensure that the lengths are the same?
Well, making exhaust headers is not the easiest and simplest thing in the world. But generally speaking there is a manufacturing limitation that actually helps with the design. You see, when you bend tube you use bending dies and a press. That's how even large automakers do it too, albeit with expensive NC tube benders. Bending dies tend to create circular arcs. Not elliptical and not "spliney" shapes. With that in mind you need to design each tube for your header as a series of arcs and straights. Of course the tube itself is going to be a sweep feature. And of course the arc length is something that you can calculate very easily know the radius and angle of the arc. A spreadsheet might help there. The equation is (not in spreadsheet format) 2*π*Radius*(angle/360). Now the "dark art" of exhaust manifold design starts... You know the cylinder head layout and you pick a collection point where you header's exit will be. ➡You design the first tube ➡Calculate the length as designed ➡-Try and get the second to the same place ➡Calculate the second tube's length If it's the same, you move on. If it's not you need to decide whether the path of the tube needs changing or the collections point or both! Dark Art, I tell you! ➡Rinse and repeat until you get a finished exhaust header. Again. Not easy. To design or manufacture. That's why performance exhaust headers cost a bit... P.S. Don't even get me started in hyper competition highly customized headers made from rolled sheet metal pieces welded together... Oh man, I could go on for days on this topic.
@@ExMachinaEngineering Good explanation. I have made headers the old, manual way, what I was looking for was if there is a way, apart from calculating all the lengths of the straight and arc sections as the only measurement Alibre can do is measure endpoints. It's not there now, but it might be a useful feature in Alibre to be able to calculate total lengths, even if made from straight and arc sections.
Another great video. You made the 3D sketching look easy. I’m still learning to do sheet metal. Guess I’m venturing into the 3D sketching next. 😂
Thanks a lot, man!!! I love that I'm actually helping with these videos. 3D sketching deserves some attention because it's really powerful.
Really insightful video! As someone who enjoys seeing car parts being modeled, I'm definitely inspired to try out 3D sketching. It seems like a fantastic tool for conveying design intent more effectively, especially in automotive design. Can't wait to see how it enhances my workflow. 👍
Yeah, that's true. And not just automotive. Anything requiring piping, ducting or wire harness design should be done with 3D sketches. Easier, more powerful, and ultimately makes more sense to do it that way
Thanks for watching and commenting and if you need any help with it, hit me up here or in the forums.
Fantastic. I love your channel. I learn a lot of techniques from you.
Thanks man! I love to hear that I am actually helping.
13:32 WOW! That's pretty powerful stuff. I probably would've designed the complete shape from one sketch like you said you didn't want to do, and it's up for debate which method would take more time, but removing faces like that and Alibre knowing what to do with it is really cool!
Yeah direct editing is extremely powerful, and Alibre is, usually, pretty good at getting the design intent right. More so than other programs that might actually have more direct editing tools than it.
Thanks for watching and thanks ofr the comment, m8!
Awesome video. Haven't done any 3d sketching yet, but I'll follow the exercise in the video step by step to start learning.
Thanks man, glad you like it! Check out my newest video on 3D sketching. It'll get you up and running with 3D sketching and making complex geometries in no time
Seems like an exhaust manifold from a classic Mini! If you add two more pipes it might just seem half the manifold of a serious engine... (you know what i meen)😆I'll try modeling this in solidworks and i think that i can manage! Keep up the good work!
Lol, Great comment! I thought it looked like the manifold from an old Alfa Romeo Boxer 4. But I guess those curved more. Anyway, thanks for the comment.
By the way, get Alibre. SOLIDWORKS is overpriced 😅😉😄
P.S. Now I got it, you mean a V8. 😂 Someday I should try to model a "Bundle of snakes" type manifold. Like from the GT40
Yeah, Alibre Design Expert will cost you less than half of one year of SolidWorks, and Design Expert is a lifetime license.
That's good but, how do you do a set of headers where the only fixed requirements are the head layout, the end point, tube size and the *tube length* where the tube lengths must all be the same? How do you ensure that the lengths are the same?
Well, making exhaust headers is not the easiest and simplest thing in the world. But generally speaking there is a manufacturing limitation that actually helps with the design.
You see, when you bend tube you use bending dies and a press. That's how even large automakers do it too, albeit with expensive NC tube benders. Bending dies tend to create circular arcs. Not elliptical and not "spliney" shapes. With that in mind you need to design each tube for your header as a series of arcs and straights. Of course the tube itself is going to be a sweep feature. And of course the arc length is something that you can calculate very easily know the radius and angle of the arc. A spreadsheet might help there. The equation is (not in spreadsheet format) 2*π*Radius*(angle/360).
Now the "dark art" of exhaust manifold design starts... You know the cylinder head layout and you pick a collection point where you header's exit will be.
➡You design the first tube
➡Calculate the length as designed
➡-Try and get the second to the same place
➡Calculate the second tube's length
If it's the same, you move on. If it's not you need to decide whether the path of the tube needs changing or the collections point or both! Dark Art, I tell you!
➡Rinse and repeat until you get a finished exhaust header.
Again. Not easy. To design or manufacture. That's why performance exhaust headers cost a bit...
P.S. Don't even get me started in hyper competition highly customized headers made from rolled sheet metal pieces welded together...
Oh man, I could go on for days on this topic.
@@ExMachinaEngineering Good explanation. I have made headers the old, manual way, what I was looking for was if there is a way, apart from calculating all the lengths of the straight and arc sections as the only measurement Alibre can do is measure endpoints. It's not there now, but it might be a useful feature in Alibre to be able to calculate total lengths, even if made from straight and arc sections.
That's true. That would be a cool addition to Alibre
where can you find drawings like this?
I would say the the best source would be TooTallToby's UA-cam channel and website