Blow-molder parison drop interpolates two photos of the same head, 9cr

Frame A is the extruded parison, frame B is the same extrusion-blow head after inflation: Flux 3 first-last interpolates 5–20s at 9cr with native audio; a generated bottle with a different pinch-off is a different mold.

A blow-molder listing that books is a drop on this head: the parison hanging, then the same tooling after inflation, same die, same pinch-off, same clamp. It is not a prettier PET cousin with a seam the tool never cut. Photograph both states. Interpolate. Leave a generated bottle off the generate.

Frame A is the parison; frame B is the inflated head

Photograph the extrusion-blow head the way a process engineer matches a drawing: die bushing, the hanging parison, the mold halves in the same frame if they are part of the SKU. That is frame A. Inflate on that head — or photograph the same station after the blow, same camera height, same millimetre of platen in the foreground. That is frame B.

First-last frame takes those two stills and generates the motion between them. Ordinary image-to-video knows where it begins and improvises the rest. First-last has to land. The drop is decided by you.

The two frames have to be connectable in the time you buy. Same head, same lighting family, same lens. A macro of molten polymer morphing into a wide of a different line is a warp, not a blow. A last frame from a competitor's station "because the bottle looks cleaner" is a second mold. Keep the head.

Prompt the travel, not the objects. The stills already contain the parison and the inflated part. Name the mechanism: hold, then the parison drops and inflates; camera locked; no new die; no new clamp. If the endpoints share geometry, the morph reads as a cycle. If they do not, you get a mushy crossfade you could have made in an editor without a video bill.

Do not treat a loop (the same hanging parison in both slots) as this ad. A loop is ambient motion on one plate. This offer needs two states.

Flux 3 interpolates the drop

Create a first-and-last-frame transition video is the named agent job: two photos in, one transition out. The agent passes them as first and last frame and picks a first-last-capable model. Cost is priced per model, shown before you confirm. This is not the plain "turn one photo into a video" capability. Missing the inflated head is a different job.

Flux 3 First Last Frame to Video is the catalog row: start frame and end frame, native audio, 720p or 1080p, durations from 5 seconds through 20. The listed rate is 9 credits per second. Audio is on — write the mix (a quiet platen, a faint blow, no speech) or write silence. A silent brief still gets a soundtrack you did not choose. Quoted wall thickness does not become a title card.

Five seconds is the floor. Twenty is the ceiling. A one-beat drop does not get better at 20s; you pay 9 a second for the pad. Iterate at 5s once the stills share geometry. Pick the ratio you will ship before you interpolate. A 9:16 crop off a 16:9 pair is how the pinch-off falls out of the safe zone.

This is not ordinary image-to-video from one still. One image is open-ended motion. Two images is a bounded landing.

A different pinch-off is a different mold

Pinch-off is the claim. The weld line, the flash, the number of cavities in frame, the badge on the head. Flux will connect whatever you give it. If frame B is a different SKU, the connection is a different mold. Buyers who own this class of machine notice that before they notice your logo.

Do not:

• Use a last frame of a stretch-blow PET preform because the bottle "looks finished."
• Prompt "improve the pinch-off" or "smoother weld" while interpolating. That is a new tool.
• Swap a monolayer head for a coex head in the second still and call it the same station.
• Start from a paragraph about "a blow molder making a perfect bottle." That rebuilds the line.

Wall thickness, neck finish, and cycle time stay in the photograph or in overlay you typed. Do not ask Flux 3 to letter "0.8 mm" onto the platen. If the physical nameplate is already in the still and it is this head, keep it. If the letters are wrong, crop or overlay. Prettier digits are a different SKU.

Manufacturers is nearby and still not this listing. That page is plant-floor scale, QC, recruitment. It is not a substitute for two stills of one head.

Product video is a restage, not this pair

AI product video will run a still-to-motion job when you only have one approved plate. That is a restage: orbit, turn, a new scene around a SKU. Restaging is how a catalog bottle becomes a lookbook hero that is no longer the line card. An OEM drop is two states. Do not demote a parison drop into a single-image spin because the launcher was open.

Hold the stills at full size. Would you print them on a sell sheet? If no, you are not ready for Flux. If yes, pick a length inside 5–20 seconds. A 20-second miss is a long miss of the same warp. Start at 5s or 6s until the head holds.

Native audio will add a bed. Do not write a voiceover into the interpolation prompt and expect a named host. Score later, or accept the mix. Lips do not belong on this SKU. If a named applications person must speak, that person is real, on a different day. Generation still does the drop.

The test: pause the last frame. Is that the head you sell, inflated, with the pinch-off you actually tooled? Yes: this job. No, a cavity appeared or vanished: you did not own both photos, or you asked the model to redesign the mold.

FAQ

Can I animate one photo of the hanging parison and hope it inflates?

You can. The ending is then the model's guess. A blow-molder ad is the inflated head on this tooling. Pin that still as the last frame or you are not selling the drop.

Why Flux 3 instead of a talking-head model?

Because the product is interpolation between two approved stills, not a mouth. Flux 3 first-last is 5–20 seconds, 720p/1080p, native audio, 9 credits per second. A presenter row will talk over a line it invented.

Do the two photos have to be the same shot of the same cycle?

They have to be the same head. Same die, same lens family, same lighting neighbourhood. A noon still into a night still is a time-lapse you should prompt as one. A different pinch-off is a different mold.

Is this the same as uploading one bottle photo to the product-video generator?

No. One image is a restage. Two images is a bounded landing. The agent notes that this capability needs first frame and last frame. Missing the inflated head is a different job.