Files (9)

extension_arm_lever_end.STL

STL

125.5 KB

extension_arm_guide.STL

STL

74.9 KB

extension_arm_link_end.STL

STL

183.6 KB

rocker_arm_for_linkage.STL

STL

117.6 KB

rocker_arm_cap.STL

STL

102.9 KB

rocker_arm_no_linkage.STL

STL

108.0 KB

bolt.STL

STL

278.8 KB

base_adjustable.STL

STL

628.5 KB

base_OLD.STL

STL

629.3 KB

Print guidance estimate

Uses saved filament metadata

Print cost & setup estimate

Setup guidance plus saved or slicer-confirmed filament, cost, and time. Model file size is never treated as printable volume.

9 model files

Recommended kit

50g

Based on 25% main infill across listed model files

Material cost

$1.20

Filament only at roughly $24/kg PETG / ASA

Print time

2.0h saved / 1.4h–2.4h estimate

Uses 70 mm/s, 0.2 mm layers; verify supports in slicer

STL file	Role	Source size	PETG / ASA 20%	PETG / ASA 25%	100% solid	Recommendation
extension_arm_lever_end.STL	Printable file	125.5 KB STL	Slice file	Slice file	Slice file	Ensure proper orientation in slicer for optimal print quality and minimal supports
extension_arm_guide.STL	Printable file	74.9 KB STL	Slice file	Slice file	Slice file	Ensure proper orientation in slicer for optimal print quality and minimal supports
extension_arm_link_end.STL	Printable file	183.6 KB STL	Slice file	Slice file	Slice file	Ensure proper orientation in slicer for optimal print quality and minimal supports
rocker_arm_for_linkage.STL	Printable file	117.6 KB STL	Slice file	Slice file	Slice file	Ensure proper orientation in slicer for optimal print quality and minimal supports
rocker_arm_cap.STL	Cover / cap	102.9 KB STL	Slice file	Slice file	Slice file	Use PETG / ASA; check sealing faces and verify in slicer.
rocker_arm_no_linkage.STL	Printable file	108.0 KB STL	Slice file	Slice file	Slice file	Ensure proper orientation in slicer for optimal print quality and minimal supports
bolt.STL	Printable file	278.8 KB STL	Slice file	Slice file	Slice file	Ensure proper orientation in slicer for optimal print quality and minimal supports
base_adjustable.STL	Printable file	628.5 KB STL	Slice file	Slice file	Slice file	Ensure proper orientation in slicer for optimal print quality and minimal supports
base_OLD.STL	Printable file	629.3 KB STL	Slice file	Slice file	Slice file	Ensure proper orientation in slicer for optimal print quality and minimal supports

Saved setup guidance is used for material, infill, support, and per-file recommendation text; editable numbers are planning estimates only.

Interior

Tesla Model 3 rear seat lock

0 downloads144 views0 likes

Shared by

Michael Chen

Verified

Description

UPDATE 2: As requested, a remix using bolts to assemble https://www.thingiverse.com/thing:3431139 UPDATE: I modified the base piece to allow for side-to-side adjustment during installation (see red printed piece in photo). For my car, the mechanism works best biased towards the driver's side, hence the original asymmetrical design. Based on user feedback, the original design can rub against the striker on some cars, so the new design allows you to position the mechanism best for your particular car. Locking mechanism for Tesla Model 3 rear seats. There are 2 versions of the "rocker arm", one for a simple toggle, and one for the extended linkage. Video of operation, assembly, and installation: https://youtu.be/8tt10vhaUjw Edit: Sorry if mixing all the files together was confusing...here is the breakdown of parts (I also added a zip file for each lock type if that's easier):.

Print Settings

Time: 2h

Filament: 50g

Supports: Not needed

Compatible Cars

Tesla (all models)

Published Mar 8, 2026Updated Jul 15, 2026

Originally published on thingiverse.com · License: CC BY

Verified by drivers

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