Monitor mount for a 1515 post: VESA 75 / 100 plate, post clamp and arm segments — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/t-slot-monitor-mount/ (CC BY 4.0) Basis: Xem Studio design: a post clamp that bolts to a vertical 1515 through two T-nuts each side, arm segments with Ø12 pin pivots, and a VESA 75 / 100 plate Catalog version: 2026-10-20 Sizes: see table below - Two segments reach about 14 to 24 in. Check the monitor's weight against your material; VESA 75 and 100 use M4 screws. segment_mm 180 250 300 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - 80/20: 15 series T-slot profiles and fasteners (1.5 in rail, 5/16-18 hardware) — web — maker's catalogue; numbers cited — https://8020.net/1515.html Free files (CC BY 4.0, Xem Studio; STEP + STL, 5 parts): https://xemstudio.com/files/hardware/t-slot-monitor-mount/index.json API: https://xemstudio.com/api/geometry?object=t-slot-monitor-mount