Files (11)

1971_Heater_Switch_BLANK.STEP

STEP

98.3 KB

1971_Heater_Switch_L.STL

STL

1.1 MB

1971_Large_Switch_12V_STL.STL

STL

1.1 MB

1971_Large_Switch_BLANK.STEP

STEP

109.1 KB

1971_Large_Switch_Fog_STL.STL

STL

1.1 MB

1971_Large_Switch_Hazard_STL.STL

STL

1.0 MB

1971_Large_Switch_Power.STL

STL

1.0 MB

1971_Large_Switch_Question.STL

STL

1.1 MB

1971_Mini_Switch_Compressor.STL

STL

1.2 MB

1971_Mini_Switch_Front_Locker.STL

STL

1.2 MB

1971_Mini_Switch_Rear_Locker.STL

STL

1.2 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.

11 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 item	What to verify	Price & availability
PETG filamentAmazon · Affiliate link	Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.	Check price at Amazon
ASA filamentAmazon · Affiliate link	Amazon 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

FJ40 Custom Dash Knobs

1 downloads115 views0 quality score

Print this part

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

Files

11 hosted model files

STL + STEP

Material start

PETG or ASA for durability

Saved part guidance

Strength start

20-30% infill, 1.2-1.6mm walls for strength and minimal weight

Saved part guidance

Orientation / supports

verify in slicer

Exact totals

Slice for grams + time

Model geometry and final settings determine both

Vehicle exposure

High cabin heat — validate PETG or choose ASA/ABS

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.

License & use

CC BY

Commercial use allowed

Attribution required

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.

Shared by

3DPrintedCarPart

Verified

Description

Overview: These are modeled after the early style knobs. Some knobs are at half-height as I am planning on putting them under the dash and wanted them to be lower profile. Process for those who want to make custom knows: Download the blank STEP file and cut in your own icon, You can find good icons to use via Noun Project: Free Icons & Stock Photos for Everything - https://thenounproject.com/. Either import directly or use it as a guide for your own line art. I normally try and make the line width 0.75mm wide and 0.50mm deep. Notes: Tap the base hole as M5 and the set screw hole as M4. I use this for the set screw McMaster-Carr - https://www.mcmaster.com/93038A126/ Post Process and Paint Fill Process: After Tapping the Knobs. I use a spare M5 Screw in a drill to chuck the knob. I then use Novus 7136 Plastic Polish Kit starting at 3 up to 1 to get the surface a bit shinier. For the colored paint Fill, I use Enamel paint meant for miniature model painting. I like Humbrol but Testors work great as well. For White is use a Presto! Multipurpose Correction Pen If possible use an Ink Syringe with the enamel to fill otherwise I just use a paintbrush or needle to get it filled. I try and dab most of the paint off. This leaves it pretty messy. After the paint semi sets up. I take some Goof Off paint remover and wipe the surface clean with a microfiber towel. I repeat the paint application/wipe removal as needed till I'm happy with the fill.