Print-in-place: captive turntable with V-ridge retention (Ø80 platter) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/print-in-place-captive-turntable/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Xem Studio design: revolved profiles; 45° V-groove / V-ridge retention; one designed running gap of 0.40 mm
Catalog version: 2026-10-20

Overall (mm): length 100.0, width 100.0, height 10.0
- 3D print in place — prints already assembled, moving, in one job. Drawn at true size with no printer tolerance added; the 0.40 mm running gaps are part of the design.
- Running gap 0.40 mm per side, 0.80 mm on diameter — part of the design, drawn as is. On the 45° faces the same 0.40 mm is measured square to the face (0.57 mm along the axis).
- Bed: both bodies lie flat — the platter inside the base ring, both on their full bottom faces.
- Support while printing: the platter rim carries a 3 mm deep 45° V-groove; the base ring's V-ridge grows into it from the base wall, its underside at 45°. No face in either body overhangs more than 45°.
- Captured by the V: the ridge sits in the groove, so the platter can move neither up nor down out of the ring (axial retention both ways) and stays centred radially.
- Freeing it: hold the base and turn the platter one full turn each way; press it up and down once.
- Motion: continuous rotation; end play 0.57 mm each way, radial play 0.40 mm. No stops.

key  value  what
gap_mm  0.4  running gap per side on every moving interface (radial, axial, under captured parts) — part of the design, not a tolerance
platter_d_mm  80.0  turntable (platter) diameter
platter_h_mm  10.0  platter thickness
base_d_mm  100.0  base ring outside diameter
base_bore_d_mm  80.8  base ring bore
groove_depth_mm  3.0  45° V-groove in the platter rim
ridge_mm  2.43  V-ridge of the base reaching into the groove
axial_play_mm  0.57  end play each way (0.40 square to the 45° flanks)
radial_play_mm  0.4  radial play
rotation_deg  360 continuous  platter in the base
center_hole_d_mm  10  platter centre hole
mount_holes  4 × Ø4.5 on Ø91  base ring
platter_holes  4 × Ø3.4 on Ø50  platter

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Xem Studio: Print-in-place mechanism design (geometry computed in the generator) — web — Xem Studio design — https://xemstudio.com/

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 3 parts): https://xemstudio.com/files/hardware/print-in-place-captive-turntable/index.json
API: https://xemstudio.com/api/geometry?object=print-in-place-captive-turntable