Join Paul J. Smith for an in-depth discussion in this video Investigating the lower armature of the lamp, part of SketchUp Pro: Modeling a Lamp.
- In chapter two we're going to look at the backbone of this anglepoise lamp. I've called it the lower armature, as opposed to the top the top arm that comes at the back. This is where most of the flexing gets done. So, what we are going to make is these arms. This is the same reflected arm as the other ones, so we make one of those and flip it. That's not too difficult. And then we got this thing as well to make, this is the rear one. And the rear one has a little port at the bottom and the top for cable to come through. And then, it's got little rubber gaskets around the top of that. We've also got this hinge unit. This is made up of several parts. This is a modification. The original one used to be chrome plated steel and then later on they turned it into a polythene type hinge. I think you can still get the originals for this but this stops it from rubbing against that. Slightly better upgrade. It doesn't look as good but it does help with the movement of it. And then, we got a lot of pins. So, these pins are all different shapes and sizes. This one holds these two arms to this hinge unit which connects up to this unit. These two hold these two arms onto the swivel connector And then, these two down at the bottom, these hold the little springs onto the spring connector retaining clip, which is on the swivel connector, as well. Then, there's one at the back of this. It goes again down to the spring connector. So, all of these things are designed to move in between each other. So, the prongs of that swivel connector, this can swing through that, and everything works very, very nicely, indeed. When you start to put this together you appreciate more and more how sophisticated this thing was for quite a simple looking thing. At the top we've got the top arm which is hinged at that point and this point. Well, it's hinged at that point, it's fixed at this point, so when the top moves up and down these things move, as well. So, this can move up and down based on that pivot. These always retain their parallel relationship. So, they never defer from that cause the distance between that point there and this point here is the same. So, all this back piece ever does is moves up and down based on the position of this, and based on the position of the top piece, as well. So, the reason we've put all these little pivot point things in is so that it allows us, when we do decide to reposition it, so we can use these as fulcrum points and rotate around that. This is going to be quite a long chapter, We'll take it steady but once we've built this bit then we start to see the whole thing come together. The rest of it is relatively easy after we've put all this stuff together.
- Making the base profile
- Making a swivel connection profile
- Putting an armature hinge together
- Adding springs
- Completing a shade holder
- Making a bulb and bulb holder
- Making the armature hinge pin
- Articulation and rendering