No page gets oily on the machine.
A printed setup sheet is a number that has stopped being true. Everything in this system follows one rule — one number, one truth — and the moment a sheet comes off the printer it stops obeying it. The floor reads the plan off a screen that is always the current revision.
Paper is the smallest of the three things it costs you
In that order. The one at the bottom is the one everybody counts.
The wrong revision
A part machined to rev 00 while the drawing sits at rev 02. The sheet was right when it was printed and nobody printed it again. This is the expensive one — it is scrap, a re-run, and a delivery date. It has nothing to do with paper and everything to do with paper.
The walk
Something changed, or the sheet is unreadable, so someone leaves the machine and goes to the office to print it again. The machine is stopped for all of it.
The paper
Last, and cheapest. It is the only one of the three anyone puts on a budget line.
Your floor, your numbers
Nothing here is an industry average. Every field starts at a plain round number so you can see what it does — put your own in, and the answer is about your shop and nobody else's.
These are starting points, not claims. The two that decide the answer are yours alone: how often a job is reprinted, and what an hour of stopped machine costs you.
And the number this calculator will not give you
Not one of these lines is the reason to do it. The reason is the first row on this page — the job that ran to the wrong revision. We cannot put a number on yours, because we do not know how often it happens to you, and a made-up figure there would be worth less than nothing. You know the number. It is larger than everything above added together.
Oil is what makes shop paper different
Office paper goes back into the loop. A traveller that has spent a shift on the machine has coolant on it — and coolant-soaked paper is not taken for closed-loop recycling. It goes to landfill. That single fact is the whole environmental argument, and unlike most of them it can be sourced.
The same tonne of paper, two endings
Both figures are the UK government's published greenhouse gas conversion factors for waste disposal (DEFRA / DESNZ), as compiled at greencalculus.com. They are end-of-life factors: they say what happens to the paper after your shop is finished with it, not what it cost to make. We are not going to dress one number up as the other.
What we are not going to tell you
How many trees. We went looking for the number, and the same question gives:
Ten times apart, and every one of them is on a page that is selling something. We will give you kilograms, because kilograms can be counted. It is the same reason every cutting speed in this system carries the page it was read from, and why an operation with no published feed prints a dash instead of a guess.
What the floor reads instead
A board, not a binder
The setup, the tools, the speeds, the checks and the film of the part being cut — on the machine, in the current revision, at the size a person reads across a workshop. When the plan changes it is already changed on the floor.
MEKLYRA still prints
A signed inspection report is a piece of paper on purpose, and a customer who wants the job package on paper gets it. The point was never never print. It is print because somebody asked for it, not because the floor has no other way to know.
The tree
The idea came from our own floor, and it is a good one: a shop that stops printing has saved something real, and the most honest way to say so is to put a tree in the ground for it.
This space is reserved, and it is empty
There is no counter here, and there will not be one until MEKLYRA has named the organisation that does the planting and can show what was planted, where, and on whose behalf. A tree counter with nobody behind it is worth less than no counter at all — it is exactly the kind of number this page spent the last two sections refusing.
When the partner is real, this is what goes here: the shops, the kilograms of paper they did not print, the trees, and the receipt. Until then, the honest version of the claim is the one above it — kilograms, because kilograms can be counted.