Film by the pound, not a headcount.
A roll of film is never full and never a whole number — so SightLine tracks it by weight. Weigh the roll, subtract the core, and the remaining length falls out. The cut optimizer nests against what is really on the shelf, and low stock is flagged before a job is booked.
Counted rolls, guessed remaining, ran out mid-job.
Weigh the roll. The remaining length falls out.
Film ships on a core and gets consumed unevenly, so a headcount lies. SightLine records the roll weight and derives what is left — (weight now − core) ÷ (full − core) — then feeds that real number to the cut optimizer and the low-stock flag. A running weight ledger — film IN, film OUT to a job, film LOST — reconciles against a re-weigh any time.
- Each roll tracked by weight, to the pound
- Remaining length derived: (weight − core) ÷ (full − core)
- IN / OUT / LOST ledger per roll, tied to the job
- Reconciles against a physical re-weigh
One shelf, honestly tracked.
Weigh, don’t count.
Each roll is a weight, not a unit — the only honest measure of film that ships on a core and gets used unevenly.
Length from weight.
(weight now − core) ÷ (full − core) gives the remaining fraction, so “how much is left” is a number, not a guess.
Flagged before the job.
A roll too short for the next job is flagged at scheduling — before the crew is dispatched, not after.
In, out, and lost.
A running weight ledger per roll — received, cut to a job, and written off — that reconciles on a re-weigh.
Your films, your specs.
Rolls belong to catalog films with their specs, so stock and pricing speak the same language.
Real on-hand film.
The cut optimizer nests against these weights, so a plan only uses film you actually have.
Built, tested, and in production.
Roll inventory, answered.
Why track film by weight instead of counting rolls?
A roll is rarely full and never a whole unit — it gets cut unevenly across jobs. Weight is the only honest measure of what is left, so SightLine records the weight and derives the remaining length from it.
How is the remaining length calculated?
From the weights: (current weight − core weight) ÷ (full weight − core weight) gives the remaining fraction of the roll, which maps to remaining length for that film.
What does the ledger record?
Three events per roll — film received (IN), film cut to a job (OUT), and film written off as damage or scrap (LOST). Because they are weights, the ledger reconciles against a physical re-weigh.
Does it handle lot numbers, expiry, or multiple locations?
Not today. Inventory tracks one shop’s shelf by weight — there is no lot/batch tracking, expiry dating, or multi-location stock. Those are deliberately out of scope for now.
How does inventory connect to the cut optimizer?
Directly. The optimizer nests each job against these on-hand weights and widths, so a cut plan only ever uses film you actually have — and a short roll is flagged before the job is scheduled.
Weigh your shelf. See what you really have.
Bring a few rolls and a scale. We will show remaining length from weight, the in/out/lost ledger, and the low-stock flag that stops a job before it starts short.
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