$Bmw E30\E28\E21 - door lock knob sleeve (OEM: 51 41 1 911 964, 51 21 1 852 140) - image$

Files (1)

BmwE30_doorLockKnobSleeve_v1.stl

STL

442.4 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.

1 model file

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
BmwE30_doorLockKnobSleeve_v1.stl	Primary model	442.4 KB STL	46g $1.10	50g $1.20	110g $2.63	Ensure a brim or raft is used for stability if necessary

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

Accessories

Bmw E30\E28\E21 - door lock knob sleeve (OEM: 51 41 1 911 964, 51 21 1 852 140)

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Michael Chen

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Description

Bmw E30\E28\E21 - door lock knob. OEM: 51 41 1 911 964, 51 21 1 852 140 Almost same with original part (a bit bigger in size for better fit in hole). Perfectly fits in original lock pin hole. Can be used with the original knob. But i recommend to use custom knob: https://www.thingiverse.com/thing:4845897 Fusion360 source-file (*.f3d) attached.