Modeling Diving Knife Tutorial

Ivan — Thu, 05 Nov 2009 19:23:13 +0000

In this tutorial you will learn how to model this cool looking diving knife. The model can be set apart into two pieces, blade and handle. Both having some nice features.

INTRODUCTION

I really liked modeling this model, it turned out really good, and I must say that it was pretty easy to model it too. However, there is fairly enough playing with Osnap, but then again, when do we not use Osnap frequently? Anyway, to get you started, you first need to download some kind of blueprints I made for you out of this model. You just gotta love that Make2D command!!!

Blueprints reference

STEP 1

First things first, we need to setup our blueprints. Not only import them into Rhino, but also position and scale to fit the dimensions marked on them. First, go to Front viewport. You can expand it by double clicking it. Next, using PictureFrame command browse for blueprints you previously saved to your computer. Now, you don’t need to worry about how to position or how big you should make it. We will fix that in a bit, but just make sure your blueprints are not tilted. For that you can use Snap, or even better Ortho.

PictureFrame

Create a line with PolyLine command or just simple Line command will do it. From the blueprints you see one dimension 145.08. That is just a reference dimension, and you can use 145. So, make a Line 145 units long and using Ortho make it horizontal. Now, the line will probably be bigger than the blueprint in PictureFrame, but that doesn’t matter because we will now scale the blueprint to fit the line. First, using Move command move the blueprints PictureFrame. Select PictureFrame, and start Move command, by clicking on the image, on the tip of the blade you define first point to move from. Then click on the End of the line for the point to move to. Using OSnap End option is smart thing here. Actually, without it you can’t do it accurately.

Move from blade tip

Next thing we need to do to the blueprint is to scale it. Now, we have one line that is 145 units long, and we see on the blueprint the length of the blade. Using Scale command we will scale the PictureFrame by first clicking on the end of the line (or tip of the blade) and using Near OSnap option we will click on the line where the blade ends on the blueprint. Then, for the last click we will click on the opposite end of our 145units long line.

Scaled blueprints to fit the line length

Create another Line, and position it according to the blueprint vertical line that represents the far right end of the blade.

Another line

Now, move the horizontal line to the Mid point of vertical line. Use Mid option in OSnap.

pic

Modeling Rowenta Hair Dryer

Ivan — Tue, 15 Apr 2008 23:59:39 +0000

Here is one organic tutorial, helping you with some standard shapes and objects. Check this one!

Ok, first, sorry for delay, I’ve been meaning to write this one down for 4 days now.

I must say that I’m pretty happy with this one, it turned out very accurate and great. I really like it! And it is pretty easy to model it. So check it out:

RESOURCES

1042008419.jpg

STEP 1

Ok, first things first, so lets start with tubular part. The part where the motor and heater is. I’ve measured 120mm the length and make a line with Polyline or Line command (the length of our reference image is 190mm). We will make three circles two on the start and end of line, and one 30 or 40mm from the left circle. You need to offset them by 2mm, or simply make another circle. I made another circle, so in the end I ended up with 6 circles. Far two right circles are in radius 26 and 28mm. The far left two are 34 and 36mm, and the inner two are 35 and 37mm.

Using InterpCrv command make a line connecting three outer circles. (use Quad option in Osnap for easier snapping). Next, do the same step for 3 inner circles.

Using Sweep2 for first and second rail select outer two circles, and for cross section curve select Curve we made earlier.

Make an ellipse and position it like on the image below:

Next, from Front viewport use Project command to project that ellipse onto our tubular surface. You will get two curves on the surface, and we need only the front one. Using it, we will trim the surface and make a hole:

Now, we’ll move onto handle. I like jumping from one part to another, I guess you already found that out

From top viewport using reference image, outline outer edges with InterpCrv. Just to make sure, I made a straight horizontal line in Top viewport (using Ortho) and trimmed off the two curves. Now, we are sure those two curves has endings in the same cplane.

Create another ellipse, this time one radius 15mm and other 13mm. Using End and Quad options in Osnap, position the ellipse between two curves, first move it to the end of one curve, and using PointsOn command, stretch the ellipse to fit the other curve’s end.

Copy that ellipse, and position it like on the image below. You also need to stretch it with moving control points so it touches both curves. I have also made this ellipse 4 points higher. So, select upper three control points and move them 4 units up, and then move lower three control points and move them by 4 units (mm) down.

Next, using that second bigger ellipsoid and two handle curves, we will make a sweep2.

Using DupBorder we will duplicate border of newly created surface. We will get two closed curves, and we need the little one only, as we already have the bigger one. So, now, delete the surface, and again create sweep2 rail between two rail curves, and using now three closed curves:

And now, we have a handle! Next, we will blend the two surfaces, so use BlendSrf command. Note that we need to check the Same height shapes option:

Hopefully you got something like on the image below:

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Modeling Diving Knife Tutorial

INTRODUCTION

STEP 1

Modeling Rowenta Hair Dryer

RESOURCES

STEP 1