Join Paul J. Smith for an in-depth discussion in this video The upper armature explained, part of SketchUp Pro: Modeling a Lamp.
- [Instructor] Chapter five oh one. We're now going to have a little look at this thing. This is the upper armature. And I'm going to explain how everything kind of works. It's fairly obvious, I suppose but just in case you're wondering, all these bits that we've made, where they actually go. This is the bulb holder and this is the bulb. These things join together. So I'm just going to step this back a few. So there we go. That's connected up to that. What we'll have to do is put a little stub guide on there and on the back of the bulb. And then these things jump into this thing. Okay, so they fix at this point. So this is one of those screw thread retainers that screws into position and sort of locks against this. And there's another one on the other side. And that we can just about see there. And that then holds this into place. A cable comes out of the top, slides in through this bit. There's a hole there. And it runs the length of this arm, pops out there, and then comes around to the lower armature and goes back in to the lower armature where it pops out of the bottom. Okay, so that's the way that works. Then we've got this thing, which fixes back to this. And this rotates around on a pivot there. So if I just use the move tool. And I over this want I can just share with that rotation. So this can spin sort of 360 really but in reality doesn't because it's restricted by the cable, which comes out of there and into there. So you can't sort of spin it all the way around. And this and this unit are also connected together. So I'll right-click and make a group of that. And then these things pivot around these points. And we need to put a little guide or two on either side as well. Now, what I'd also found was that this was slightly too tight for this. And in reality it is a thin piece of metal. So it would expand. And what we're going to do is just scale it out just a little bit, a fraction, just so we get it to sit correctly at this position, which is kind of halfway down the length of this. This is 95 mil. So it's about 47 and a half mil up from the bottom, okay? Sadly because this top piece isn't the same height as this bit, we can't just use the move tool to spin this one because it doesn't spin at the right position. It spins where that sort of crosses. So with the stub little guides on there we will be able to then select this whole unit and with the rotation tool it's on the red axis. Position it somewhere there and then we can rotate it through there. So again, it doesn't, it can't go further than round about there. But the whole operation, when it is working properly, say we can rotate this up and down. So that's going to focus the light there. We can also then connect these two together. And with the green axis this time, we can then rotate these around that point. So that could focus over there somewhere. Okay, so that's fixed back to there. And it's still all working. And then ultimately the whole thing can pivot around this bit on the red direction. Okay, so then that can go up and down. And with the lower armature, working with this as well, we can kind of move forward and backwards. So it gives you huge amounts of flexibility. And building this thing from scratch really made me appreciate the quality of this lamp when it was designed. And behind it all the springs are just balancing everything out. Okay, so it's quite amazing really. Anyway, we are going to put this together. We're going to make those tweaks that I mentioned. And then we'll attach this bit to the lower armature. And then with some pins we'll pin it all together. And then we can look at manipulating it and adding things like the cables, et cetera, to complete the job.
- 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