‹ cd ~/endothermalnotes/

FIELD NOTES

Plain-English writeups from the bench — what hardware development really costs, how to buy it well, and how not to get burned. No fluff, real numbers, written by the engineer who does the work.

2026-07-07 · for founders & owners · 8 min read

What a hardware prototype actually costs in 2026

Quotes for the same idea range from $3,000 to $300,000, and almost nobody publishes numbers. Here are the real ranges, what drives them, the three ways people overpay, and when you shouldn't build at all.

read →
2026-07-07 · for researchers & labs · 7 min read

Custom lab equipment without the instrument-company markup

The instrument your experiment needs doesn't exist in any catalog, the big vendors quote five figures, and the student who built the last rig graduated. There's a better path — including the purchase-order lane your department can approve directly.

read →
endothermal systems llc · home · pricing · privacy · terms · © 2026