Technical notes
What works, what does not, and the number behind it
One failure per note. Each one ends with the number we hold on the drawing and the point where we stop.
No product announcements, no trade-show recaps. A note is written when a quote, a tool or a rejection changed because of what is in it — so every note carries a number you can check and a boundary you can plan against.
01 — All notes
Every note, newest first
The published note links to the full article. Queued notes are listed with the series and episode they will carry, so you can see what is coming before it lands.
Steam finds a path the dry peel never opened. The three gates that survive 134 °C, and why 3.5–8 N/mm on a dry coupon settles nothing.
Compression set is a design decision before it is a compound decision. What the groove, the strain and the time at temperature each contribute.
Where ISO 3302-1 Class M2 stops being a plan and becomes a wish, and which callouts on a drawing no press can hold.
Durometer is a reading taken through a fixed geometry. What specimen thickness does to the number, and which standard settles it.
Five lines, in the order the money sits: tool amortisation, inspection time, compound, cavity count, then machine time.
Published notes are dated; queued notes carry no date until they are written. A note is only scheduled once its failure, its number and its boundary are settled.
Two pages in 48 hours: what will not mold, and what it will cost to make it mold correctly.
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