Observed arrival · 2026-10-12
Rotorly turns EV motor sizing into a workshop build sheet
A browser-based tool for comparing EV motor options against a vehicle, driving cycle, or GPS route, with build sheets aimed at workshops and builders.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- EV conversion workshops and motor builders
- Worth noticing
- It lists winding, controller, fuse and cable sizes, gear ratio, battery layout, and a parts list with local-currency costs in its build-sheet output.
Field notes
The page describes selecting a vehicle, choosing motor targets, and comparing four motor types with scaled dimensions, weight, magnet, cost, and range. Its sample 48 V e-rickshaw sheet includes winding turns, controller and fuse ratings, cable sizes, gear ratio, and battery layout. Rotorly characterizes the calculations as early concept sizing, typically within ±20%, and says detailed design and testing remain necessary.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue