Gearbox ratios belong on a Qwen slide, not inside the prompt

Ratio, service factor, and mounting are a spec slide Qwen can letter. Veo will invent nameplate math. The housing photo is a separate I2V if you even need motion.

An industrial gearbox listing is numbers a buyer will check against a catalog PDF: ratio, service factor, mounting, center distance, lubrication. Those strings are the product. A cinematic orbit of a cousin housing with a plausible plate is a mis-ship. Letter the spec. Then decide whether the casting even needs to move.

The spec slide is the product

Procurement does not need a talking applications engineer. They need a board that survives a pause: 15:1, SF 1.25, foot-mounted, the exact string on the nameplate of the unit you will ship. Put that board on a slide. Proof it at 100%. Do not bury it in a video prompt and hope the glyphs hold for six seconds.

Qwen Image 3 Text to Image is the stills row when the letters have to read. Catalog facts: Qwen's third-generation image model, strong prompt adherence, complex text rendering in Chinese and English, intelligent prompt rewriting on by default, 4 credits, 2K max, qualities 1K and 2K. No audio. No duration. Aspects include 1:1, 16:9, 9:16, and 21:9.

Write the exact strings. If a legal or catalog line must stay verbatim, say so in the prompt and inspect the still. Rewriting is a help for scene language, not a licence to paraphrase 20:1 into 18:1. Set 1K while the words are in draft. Set 2K when the slide is the slide. There is no 4K chip on this row.

A video model is a bad typography engine. It will give you seven frames of almost-ratio and a housing legal cannot ship. Do the lock here. Approve the characters. Then, and only then, consider motion.

Qwen letters the ratio. Veo invents the plate.

Do not ask Veo — or any talking cinematic row — to "show a gearbox nameplate with the ratio." It will invent motion and invent lettering. You will not be able to screenshot the can. Pause any such clip: the plate is the model's, not yours.

The housing photograph is a different object. If you even need motion, that is image-to-video from an approved still of this case: fins, inspection window, the real stamp. Prompt only camera. Do not re-describe the ratio in the video paragraph. The slide already holds the math. The video, if it exists, holds the casting.

Manufacturers is nearby and still not this listing. That page is plant-floor scale, QC, recruitment. Useful if you are filming your line with a shot list engineering cleared. It is not a substitute for a lettered spec board. Sparks do not typeset service factor. Robotics companies is a different buyer again: cells, EOAT, a system around a reducer. OEM shipping a catalog gearbox needs the ratio on a slide, not a cell you do not run.

A constructed applications engineer walking "what you should spec for this conveyor" is a talking head you do not need. Keep lips off the spec. The board is the expert.

Plan the slideshow. Stamp after the board is locked.

Generate a slideshow from a prompt is the named agent job when you need a planned set: theme, format, slide count, then a board per beat. Cost is priced per image generated, shown before you confirm. That planner is useful for structure — ratio, then mounting, then lubrication, then CTA. It is dangerous if you let it invent the numbers.

Do not brief "industrial gearbox, typical ratios." Brief the actual strings, slide by slide, or generate the lettered stills on Qwen and assemble them as the set. A prompt-slideshow that fills "15:1" because it sounded industrial is a cousin SKU. Slide count is a width decision. Do not ask for twenty tiles to "see options."

Add text to slideshow images is the stamp pass after the pictures are keepers. One overlay auto-expands across every slide, or N overlays matching N images. It does not generate the board. It labels a board you already approved. Stamp a slide you are about to replace and the type dies with it. Caption-in-image paints letters into pixels you cannot edit; if the service factor will change in legal review, use the stamp, not the bake.

Lock order and count first. Then stamp SKU, CTA, or a source line. Convert to a reel only when the edited images are the ones you mean to ship.

Housing motion is a separate I2V, if at all

Most catalog weeks do not need the housing to spin. The slide is the product. If a dealer GIF still wants a slow orbit, photograph the case, then run image-to-video on that file. Prompt the camera. Do not prompt the ratio. Overlay any leftover spec on the video with a line you wrote, not with glyphs the motion model grows on the bell.

A last frame is only useful when you have a second approved still of the same unit — foot-mount and flange-mount of one ratio, or closed inspection cover and open. Two different ratios is a morph. Do not first-last a 15:1 housing into a 40:1 cousin.

If the still is wrong, every second of video is waste. Iterate the Qwen board and the housing plate at image prices. Do not debug nameplate math on a video meter.

FAQ

Can I put the ratio in a Veo prompt so the nameplate typesets itself?

No. Veo will invent plate math. Letter the spec on Qwen Image 3 at 4 credits, 2K, and proof the characters. Motion, if any, is a later still-to-motion pass of the housing photo.

Should the prompt-slideshow invent a typical ratio if I only said "helical gearbox"?

No. The planner will fill something that looks like a spec. That something is not your catalog row. Write the strings, or generate Qwen stills that already contain them, then assemble.

When do I stamp overlay instead of baking type into the Qwen still?

Stamp when the line may change — CTA, campaign, a legal rewrite. Bake only when the type is the scene and you will not edit it. Do not chain a stamp on top of baked-in type or you double-print the ratio.

Do I always need to animate the housing?

No. The spec slide is the listing. Animate the approved housing still only when a short orbit helps a dealer recognise the case. Identity of the casting is that job. The math stays on the slide.