SpeedyBee BLS 55A 4-in-1 ESC (30×30) — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/speedybee-bls-55a-4in1-esc-30x30/ (sheet CC BY 4.0) Basis: Secondary source: KiwiQuads (copy of the maker's figures; the maker publishes none directly) Catalog version: 2026-10-20 Overall (mm): length 45.6, width 44, height 8 - The ESC half of the SpeedyBee F405 V4 55A stack, as listed by KiwiQuads. - Modelled as a block with four Ø4 holes on a centred 30.5 mm square; capacitor and pad positions are not modelled. - True size, no printing tolerance added. Only published numbers are used; anything not published is said so. - Secondary source: the numbers come from a retailer or magazine copy of the maker's specification. dimension value Board size 45.6 × 44 × 8 mm Mounting pattern 30.5 × 30.5 mm Mounting hole Ø4 mm Weight 23.5 g Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - KiwiQuads: SpeedyBee F405 V4 BLS 55A 30×30 stack — web — Publisher's page; dimensions are facts — https://www.kiwiquads.co.nz/product/speedybee-f405-v4-bls-55a-30x30-stack-2 Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/speedybee-bls-55a-4in1-esc-30x30/index.json API: https://xemstudio.com/api/geometry?object=speedybee-bls-55a-4in1-esc-30x30