M: I want to make a wind chime that is not like usual type which hang. I want the pipes to be held in place, while a wind powered fan spins, powering its assembly around a track and striking each note along the way with some form of striker hanging from the assembly. The first version will be attempting to Play the first arpeggio from the Final Fantasy theme, if it matters later. The fan assembly needs to be able to follow a basic track, preferably one constructed to prevent it being blown off by anything short of a severe storm, but that is not an initial design element. The problem is that I’ve never been good at developing gear links the way I am with most physical or mechanical systems, particularly if I’m trying to make it custom; I could always follow what was going on in Lego technic set chains, but was never able/driven/some combination of that two translate that into developing my own motions. So that’s why I’m coming to you. If I wanted a compact minimal assembly, that would transfer the energy of a simple light wooden fan into a method of propelling that assembly along a simple track – tracks like one of those marble roller coaster kits in their simplicity – and try to incorporate an element which could prevent excessive speeds that would break the system, what would I need to do? Once this is hammered out in terms of detail, I would then like to introduce some kind of element, probably spring/tension based, that would also prevent the chime from starting to go off if there was insufficient wind to get the assembly to traverse the track at a speed at which the chimes are recognizable; but that would be a future step, and I only mention it because in your first analysis, it may play a part in your deciding how to accomplish the first step.
G: To create a compact, wind-powered mechanism that moves along a fixed track and plays a chime sequence like the Final Fantasy arpeggio, here’s a breakdown of how to approach the core motion system:
Option 1: Rack & Pinion Drive (Most Direct)
Option 2: Treaded Drive
Option 3: Chain-on-Track Drive
Option A: Centrifugal Governor
Option B: Flywheel Inertia Dampening
Option C: Friction Pad or Drag Strip
| Component | Suggestion |
|---|---|
| Fan | 5–7" wooden blades, balsa or cedar |
| Shaft | Wood dowel or metal rod through bushings |
| Drive | Rubber wheel on track (no gears at first) |
| Track | PVC U-channel or smooth wood with low ridge |
| Striker | Springy dowel arm mounted on one side |
| Speed Check | Add a friction strip and watch in gusty wind |
Let me know if you want a sketch or 3D schematic of the prototype concept next. Once we test this “wheel and rail” method, we can expand to gearing, note-timed striker actions, and dynamic wind-gating.
M: That’s one reason, I turned to you, I’m looking for the right terminology; like in this case, yes, a speed governor – initially only enough to keep the mechanism from breaking itself, but able to later be made more complex to allow prevention of activation if a certain speed can’t be achieved. My description was incomplete – I’m talking about a vertical axis fan. Like a ceiling fan, only facing up instead of down. It won’t catch as much wind, but it will allow the track to take whatever direction it wants with minimal variation. The flywheel sounds best because it sounds like it has the least degradation due to friction overtime – but once again my terminology lags behind. Am I correct in this analysis? We are going for a steampunk effect, and with minimal moving parts, so no striking mechanism. Although the arm sounds like a fair start. That’s actually why I chose the Final Fantasy theme – I had the concept first, and was reminded of the Final Fantasy seven aesthetic only after that. The magnetic release sounds like it actually would be perfect – no frictional wear and tear. What’s the downside? There’s almost always a downside. I’d like to see a technical sketch, but not quite yet – first, describe to me what you will be drawing, then wait for my input to either proceed with that technical sketch or to abandon the idea if I have new updates
G: Excellent—thank you for the clarifications. Here's an updated conceptual breakdown based on your corrections, with correct terminology and sharper framing for each subcomponent. I'll also preface the sketch concept at the end, as requested.
Since you want minimal parts and a steampunk aesthetic:
Most direct translation:
Track type: Narrow, rigid channel rail (metal or hard plastic) with guard lips to avoid derailment
Term tip: The effect you're using here is moment of inertia—mass distributed away from the center resists speed changes. Think record player platter or old crank sewing machine wheels.
Two possible designs:
A. Detent-Latch System (common in clocks):
B. Magnetic Clutch:
Downsides:
Top-down view of:
Side view cutaway showing:
Inset detail:
Let me know if you'd like this sketched as a flat diagram, a pseudo-isometric schematic, or if you'd rather I wait until you adjust any pieces of the plan.
M: You said the flywheel would add some drag in low wind areas; for now, leave out the magnetic governor pieces, but leave space for them to be added. The concept in my head for the striking mechanism has been the assembly towing around a wrecking ball type situation– but I’ve always known that that was probably the worst approach to take. Use whatever striking method you can come up with that seems to fit best, and I can make modifications from there – that actually seems to be the least complicated part of the assembly mechanism, and could be replaced by pretty much anything that might work better. Cancel the previous drawing specifications. Instead, read back to me in a shorter form What you think I’m asking you to draw with these new instructions incorporated , then wait for me to either approve that drawing or make further revisions.
G: Got it. Here’s a condensed description of the updated drawing you’re asking for:
Top-down view of a wind-powered chime assembly moving along a fixed circular or curved track.
At the center of the assembly:
No magnetic governor yet, but internal layout allows future insertion of a detent or magnetic clutch between fan and drivetrain.
Assembly is guided by side-mounted wheels or pegs that keep it on the track’s rail lips.
A fixed passive striker arm, extending from the assembly, glances off each tuned pipe as it passes. Design avoids “wrecking ball” style swinging and minimizes moving parts.
Let me know if that matches your vision, and I’ll move to draw it.
M: Please draw that assembly, but from multiple angles on the same rectangular picture: an isometric view of the assembly on a basic track on the left, and the front and side view of the assembly only in the top right and bottom right of the picture, respectively. Use a style that is more like a blueprint; clean lines, emphasis on exposed edges, but indicating other elements, no background. And to be clear, I meant in the style of a blueprint or technical drawing, not exactly like one – so black lines on white background, not literally white lines on a blue background.
G: Here is the requested
drawing:

M: It might be a good idea for you to construct a simple CAD object of the proposed assembly in your memory for this conversation, and use that as a basis for modification and illustration later. Am I thinking about things correctly, or would that not facilitate your effectiveness? The drawing style is fine. Keep using that style unless I say otherwise. But you drew the fan with a horizontal axis, not a vertical axis. Please draw a new picture, with the fan facing upward, but with a different arrangement: following the look of a Lego or ikea instruction set, give me a drawing with dimensions of about 1:4 width:height, with the top quarter containing an isometric drawing of the new assembly with an upward pointing fan, and the remainder of the picture with an exploded view showing each of the individual parts with a dotted line showing where the parts connect to each other. Please read back to me what I’m asking you, and prepare to start the drawing.
G: Here’s what you’re asking me to do, restated for confirmation:
Drawing style: Continue using the clean black-and-white line-art style, similar to a LEGO or IKEA instruction manual—blueprint-like but visually neutral and simple.
Aspect ratio: Roughly 1:4 width:height — tall and narrow layout.
Top quarter of image:
Bottom three quarters of image:
Let me know if that’s all correct, and I’ll begin the drawing.
M: That sounds correct; please begin
G: Here is the updated
drawing:
