Observed arrival · 2026-10-24
OpenTree’s 65% robot-parts test
A component-cost calculator for checking a robot against the page’s FCC 65% U.S.-content threshold, paired with listings for replacement joints.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Robot builders checking component sourcing and FCC cost share
- Worth noticing
- Unknown-origin parts count as imported, and the calculator says the entered bill of materials stays on the page.
Field notes
The calculator uses a one-level-down definition of a component: users need not trace chips inside a board. Its instructions distinguish bought parts from self-made ones, adding freight and duty to purchases and overhead—but not profit—to self-made parts. The guide also identifies a coverage boundary for mobile robots and names excluded categories. The two joint listings give torque and speed figures alongside fit descriptions.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue