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50mm STI Reverse Lockout Shift Knob Remix - image

Files (7)

STI_Shift_Knob_Small_Adjusted.stl
STL
1.5 MB
STI_Shift_Knob_Small_Sleeve_Adjustment.stl
STL
1.5 MB
STI_Shift_Knob_Small_STI_Lettering.stl
STL
393.0 KB
STI_Shift_Knob_Small_Top.stl
STL
5.5 MB
STI_Shift_Knob_Small_Top_Adjusted.stl
STL
5.5 MB
STI_Shift_Knob_Small_Top_Sleeve_Adjustment.stl
STL
5.5 MB
STI_Small_Bottom_Shift_Knob.stl
STL
1.5 MB
Print plan
Exact totals not supplied
Print setup plan
Useful setup guidance without pretending STL byte size can predict filament, cost, or print time.
7 model files
Material plan
PETG / ASA

Published material guidance; still check heat, UV, load, and printer compatibility.

Starting setup
25% infill

A planning starting point only; wall count, orientation, and geometry often matter more than infill.

Final totals
Confirm in slicer

Choose the needed variant, then slice it for grams, cost, and print time.

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

Reference shelf

Recommended filament for this print

Product references matched to the published material guidance. Confirm diameter, heat resistance, colour, and printer compatibility.

Referenced itemWhat to verifyPrice & availability
PETG filamentAmazon · Affiliate linkAmazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.Check price at Amazon
ASA filamentAmazon · Affiliate linkAmazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability.Check price at Amazon

Affiliate disclosure: if you buy through an eligible link, 3DPrintedCarPart may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Confirm product specifications, compatibility, seller terms, and vehicle safety before ordering or using anything. Amazon may redirect you to a nearby supported store; otherwise the original Amazon.com page remains available.

Unsure which one fits? Read the automotive filament guide.

Knobs/Buttons

50mm STI Reverse Lockout Shift Knob Remix

0 downloads74 views0 quality score

Use the part context as a starting point, then confirm geometry-dependent values in your slicer.

Files

7 hosted model files

STL

Material start

PETG or ASA

Saved part guidance

Strength start

20-30% infill with 2-3 walls for strength and durability

Saved part guidance

Orientation / supports

verify in slicer

Exact totals

Slice for grams + time

Model geometry and final settings determine both

Vehicle exposure

Cabin/interior use; avoid high-heat zones

Open the STL, 3MF, or OBJ model in your slicer before printing. Exact grams, time, and final support placement come from the actual slice. Test-fit and heat-check the part before installing it in a vehicle.

0

License & use

CC BY
Commercial use allowed
Attribution required
Safety/IP review

The file license permits commercial reuse, subject to any applicable attribution or share-alike terms. License status does not verify vehicle fitment, OEM rights, design patents, or safety.

3DPrintedCarPart logo
Verified

Description

FILE RECOMMENDED FOR FDM: Please use the adjusted sleeve files when printing with an FDM printer. They will generally let the nut slip in better and put less stress on the part. The other adjusted part may work as well but it usually isn't as easy to use. Thanks for downloading! UPDATE Shrinkage became an issue when making this project on FDM printers. New models have been added as a result. The sleeve adjusted models have an additional 0.4mm added to the diameter of the hex nut of the already adjusted models for ease of installation but may require epoxy when printing. The plainly adjusted models however, are built with a 1 mm adjustment to allow for shrinkage to not be an issue. Please use either of these shrink adjusted top and bottom files for better results and easier assembly if using a FDM printer. If you want a 60mm version instead of a 50mm version of this please go to my other design here: https://www.thingiverse.com/thing:2467630 This is the smaller version of a previous design that I based off of the remix of the WRX Shift Knob originally created by WillsWorld and remixed by Dingoboy71. This design incorporates the reverse lockout design meant for STIs while being at a 50mm diameter. I used Fusion 360 as well as hand measurements off of the original print to redesign this by handing customize it to my liking. Changes: Changed the logo to be the STI logo and altered the position of the hex nut to be between both the top and bottom pieces to improve strength. Purchase the hardware that is required below and put it together! Hardware required: (1) m12 x 1.25 thread pitch Nylock nut. (6) m3 x 20 (or 25) mm hex bolts (6) m3 x.5mm Nylock nuts. (1) Tube of super glue or epoxy. *Nylock nuts recommended are recommended by Dingoboy71. It is stated that you could use Loc-Tite but he recommends that you pay close attention to choosing the right variant or else you may permanently weld [it] to your car.".

Compatible Cars

Updated Aug 10, 2026

Originally published on thingiverse.com by Andy Zimmerman (surfmaster96) · License: CC BY

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