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Product Design Forums _ 3D skills and equipment _ October 3d Modeling Challenge
Posted by: ragde Oct 11 2006, 11:58 PM
Dear friends: The Diving Knife won the poll, as you can see:  In short we will be posting the technical drawings and images of the Knife. Be prepared!! Ciao
Posted by: ragde Oct 15 2006, 11:04 PM
Here we are Friends!. Use the skecth, dimensions and picture as guide, feel free to assume some geometries not defined here. Ciao and.... GOOD MODELING!!
Posted by: parel Oct 15 2006, 11:30 PM
Nice! Do you use AutoCAD for the control lines? Thanks for putting this together. It looks like a challenge this time. Great!
Posted by: Muggs Oct 16 2006, 03:44 AM
OK Ragde, I'm in.
Work is still pretty busy, but I'm not crazy busy right now, so I'll give it a go with an hour or so a day.
You know what they say; "All work and no play makes Muggs a dull boy" or something like that.
Muggs
Posted by: ragde Oct 16 2006, 05:58 PM
Thanks Parel, Yes I use AutoCad for the 2D drawings. I think that as the guys and gals get involve in these Challenges, with their ideas and advises, the project will be improving and getting more "mature" (professional?). Thanks again for your words.
Muggs: You are right my friend, there must be some space to enjoy in the middle of lot of works!.
The friend MR-A send me a message where he suggests that we all share the final files of the challenges, maybe creating a Gallery Database with the SW files available to every one for educational purpose. I think is a good idea, but anyway: What do you think about that?
Ciao all and.... Good Modeling !!
Posted by: Muggs Oct 16 2006, 11:30 PM
Well her's my initial knife:
http://img256.imageshack.us/my.php?image=diveknifesidesmpa1.jpg
I'll see if I can make a rendering tonight.
Muggs
Posted by: ragde Oct 17 2006, 02:51 AM
Wao! Muggs: That was FAST!!!
Very Nice!
Posted by: Muggs Oct 18 2006, 06:19 PM
Hey Ragde,
Here's a render that I did in Flamingo. Sorry but my OCD kicked in and I needed to make the cuts on the spine of the handle more evenly spaced. I hope this doesn't cost me points. :>)
http://img130.imageshack.us/my.php?image=diveknifepe3.jpg
Muggs
Posted by: joeschmoe Oct 19 2006, 01:04 AM
here's my first attempt
Posted by: ragde Oct 20 2006, 01:26 AM
Well done, Joeschmoe !! Very nice!
(Just use another resolution for your image to be able to see the knife in one hole screen - ~ 800x600)
Very good work
ciao
Hey Muggs, nice rendering... Your knife is superb!
Posted by: Muggs Oct 20 2006, 02:50 AM
Hey Ragde,
Thanks! I'm looking foward to see more models.
Joeschmoe, nice job!
Muggs
Posted by: joeschmoe Oct 20 2006, 12:17 PM
Hi All, thanks for comments. Took a little while to get the blend just right in the handle. I might try and do some decent renderings! 2007 maybe? Muggs, looks like the blend in the handle might need a little more work
Posted by: nacho_grande Oct 20 2006, 12:29 PM
@Muggs & joeschmoe: Both of are great models. Which software you used for modeling?
Posted by: joeschmoe Oct 20 2006, 01:16 PM
QUOTE(nacho_grande @ Oct 20 2006, 12:29 PM) 
@Muggs & joeschmoe: Both of are great models. Which software you used for modeling?
Hi Nacho All modelled in solidworks 2006
Posted by: nacho_grande Oct 20 2006, 01:31 PM
QUOTE(joeschmoe @ Oct 20 2006, 12:16 PM) 
QUOTE(nacho_grande @ Oct 20 2006, 12:29 PM) 
@Muggs & joeschmoe: Both of are great models. Which software you used for modeling?
Hi Nacho All modelled in solidworks 2006 I must learn this tool. It looks very fast and efficient. Any feedbacks?
Posted by: Muggs Oct 20 2006, 02:08 PM
QUOTE(nacho_grande @ Oct 20 2006, 11:29 AM) 
@Muggs & joeschmoe: Both of are great models. Which software you used for modeling?
Yes SolidWorks 2007, then into Rhino to render in Flamingo. joeschmoe, I thout the same anout your handle!  Just kidding! I actually stuggeled with the cut in the handle. If you look at the rear view, it is actually a concave cut. So my question is: how do you mean "more work" what exactly do you see as wrong. Thanks! Muggs
Posted by: joeschmoe Oct 20 2006, 03:24 PM
QUOTE(Muggs @ Oct 20 2006, 02:08 PM) 
QUOTE(nacho_grande @ Oct 20 2006, 11:29 AM) 
@Muggs & joeschmoe: Both of are great models. Which software you used for modeling?
Yes SolidWorks 2007, then into Rhino to render in Flamingo. joeschmoe, I thout the same anout your handle!  Just kidding! I actually stuggeled with the cut in the handle. If you look at the rear view, it is actually a concave cut. So my question is: how do you mean "more work" what exactly do you see as wrong. Thanks! Muggs Hi Muggs what I am referring to illustrated below:  note the way the detail line bleeds out as it goes round the handle:  Hope that is clearer, I did not mean to offend, just offer a bit of advice  BTW main body of handle modeled with 3 surfaces.
Posted by: Muggs Oct 20 2006, 03:38 PM
Yeah, I see what you mean. It just seemed to me that the "cut" was more concave.  BTW, no offense taken, I'm certainly not above learning. I would like to see how you created your "cut". Muggs
Posted by: joeschmoe Oct 20 2006, 04:14 PM
QUOTE(Muggs @ Oct 20 2006, 03:38 PM) 
Yeah, I see what you mean. It just seemed to me that the "cut" was more concave.  BTW, no offense taken, I'm certainly not above learning. I would like to see how you created your "cut". Muggs Ah I could have done with that image  I started with one lofted surface:  Then trimmed the main surface with "crease" detail line:
Posted by: joeschmoe Oct 20 2006, 04:39 PM
lofted second surface:  trim grip detail:  loft final surface:
Posted by: Puhrot Oct 20 2006, 05:32 PM
I think you could easily use this same technique and get the concave shape in the side of the handle by just adjusting the guide curves a bit. This seems like a great approach to getting the basic shape of the handle. Thanks for posting the pictures Joe. Also what tool are you guys using to get the cuts in the top part of the handle? The way I was thinking of doing it would be to create a cylinder shape as reference geometry. Use multiple planes to create intersecting curves on the surface and then use to deform tool to place the cylinders on the intersection curve sketches. Then I could either use a combine/remove bodies or trim surface depending on whether I had knitted the handle yet. I think this will work when I try it but it seems like there may be an easier way to do it.
Posted by: nacho_grande Oct 20 2006, 06:05 PM
Thank you joeschmoe. This images would be useful
Posted by: Muggs Oct 20 2006, 07:10 PM
QUOTE(Puhrot @ Oct 20 2006, 04:32 PM) 
Also what tool are you guys using to get the cuts in the top part of the handle?
Here is how I did it. Step-1 - Create some lines from the center of the handle. http://img253.imageshack.us/my.php?image=handle1smug6.png Muggs
Posted by: Muggs Oct 20 2006, 07:31 PM
Step-2 - Project a line onto the surface.
http://img253.imageshack.us/my.php?image=handle2smnq0.png
Step-3 - Make a Sweep Cut using the projected curve as you path.
http://img142.imageshack.us/my.php?image=handle3smgx1.png
Do the same for all cuts, mirror, and radius the edges.
HTH, Muggs
Posted by: MotaDesign Oct 20 2006, 10:58 PM
Nice work everyone. Here is my model. Attached thumbnail(s)
Posted by: joeschmoe Oct 20 2006, 11:20 PM
Hi Mota,
Knife looks great, what approach did you take??
Posted by: MotaDesign Oct 20 2006, 11:24 PM
Your approach, Joe. But with a little more line control. By the way thank you.
Posted by: joeschmoe Oct 20 2006, 11:31 PM
QUOTE(MotaDesign @ Oct 20 2006, 11:24 PM) 
Your approach, Joe. But with a little more line control. By the way thank you.
Can you explain "line control" please?
Posted by: MotaDesign Oct 20 2006, 11:40 PM
Sorry now that I am looking at it, I used less lines in the loft command. But pretty much I modeled it like you did. If you like I can send you the model. Attached thumbnail(s)
Posted by: ragde Oct 20 2006, 11:55 PM
Hey guys... Really nice work you all !! I am urged to do mine!...
See you soon.
Posted by: Puhrot Oct 22 2006, 10:40 PM
Here is a quick rendering of my attempt.
Posted by: ragde Oct 23 2006, 06:21 PM
Very nice Puhrot!
Should be nice to put some fillets around
Nice!
Posted by: Muggs Oct 25 2006, 06:19 PM
Hey Puhrot,
Nice job! I think that you and I are the only ones with hollow ground blades.
Muggs
Posted by: Puhrot Oct 26 2006, 02:58 AM
QUOTE(Muggs @ Oct 25 2006, 12:19 PM) 
I think that you and I are the only ones with hollow ground blades.
Muggs
Actually the render I posted is just a flat profile on the blade. I had it setup at first with a curved profile. With the curved profile I found that it made it harder to control the geometry of the different cut out sections of the blade. So I settled on the flat profile to make it easier. I guess I don't know alot about diving knifes but I would think a hollow ground blade may be a little brittle for the kind of abuse these knifes are designed to stand up to.
Posted by: ragde Nov 4 2006, 05:09 AM
Well fellows! this is my knife...  Very "knife" experience! See you... (This weekend start the poll for November 3D challenge)
Posted by: ragde Nov 5 2006, 04:29 PM
Hello friends: Just for educational purpose, we will going to put some images that show the modeling process that I followed for the knife...
Ciao all !
Posted by: ragde Nov 5 2006, 04:43 PM
Posted by: ragde Nov 5 2006, 05:33 PM
 Knit and Solidify. The blade is ok like that (this is not for production, only for presentation)  Knit surfaces and Mirror. The same method from Joeschmoe  Scale a little bit the knob and reposition Details on the handle...  The handle grooves & hole...  Almost the same idea from Muggs Final details...   See you all friends !!
Posted by: MotaDesign Today, 12:26 AM
Nice job, Ragde
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