Spitfire Chassis Lever 1.3

This chassis lever, or gear lever, plugs into the gear input of the AuthentiKit Universal Hub and is part of both the Spitfire MkIX and Spitfire Mk1A set of AuthentiKit flight controls.

This download contains the following items. This picture shows how it could look if you go to town with a custom paint job (thanks to Jon Stockwood for this photo). However if you don't want to go that far you can get a rather pleasing result by using the custom sticker set that SimKitSupplies includes with their set of hardware parts.

  1. All 3D printable CAD files (in STL or 3MF) format required to print the parts for the chassis lever
  2. Batches of the above with all objects correctly oriented on the print bed ready for printing
  3. Wiring diagram
  4. Bill of Materials - other hardware parts (bearings, screws etc) you will need
  5. Assembly steps
  6. An inventory of the screws so you can cross check which screw size is used where

This is the assembly video:

External Content youtu.be
Content embedded from external sources will not be displayed without your consent.
Through the activation of external content, you agree that personal data may be transferred to third party platforms. We have provided more information on this in our privacy policy.

  • Version 1.3

    * Creative Commons licence changed

    - from: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

    - to: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

  • Version 1.2.0

  • In the video for the assembly you show a damper being placed into the chassis lever. Also in the assembly steps page is shown Item 32 Fit Damper, but nowhere in the STL files (either Batches or Individual Parts) can I locate a Damper. Am I missing something?

    • Hi, the damper is a manufactured part. If you look in the bill of materials you'll see a damper listed and a link to a page showing where to get one.

  • Quick build, maximum immersion

    Compared to the throttle and stick this chassis lever is really simple to build, as it only requires two buttons. It’s an amazing showcase of the ever-evolving authentikit engineering, The spring-loaded lever and the hydraulic damper really make this feel solid.


    I would love to see the hydraulic damper built in to all of the mag hall and mclick units as standard parts. It really takes the feel to the next level. :love:



    I’ve used prusament pistachio green and spray painted the black and silver bits. Sourcing parts can be a bit of a pain in the US, but maybe in the future we could have regional versions.



    Overall, I can’t say enough great things about Authentikit projects.

    Reply from Administrator ():

    Made my day my friend! So pleased you've got this much enjoyment out of it!

  • Indicator mechanism works a charm

    A really easy build, and I'm so impressed with how the UP/DOWN/IDLE indicator window works.


    I made this with the kit from Sim Kit Supplies and 3D printing the downloaded parts. You can get away without the hydraulic dampener if you're on a budget, especially if you get the cork friction disk to a good tension, but it does make for a really nice feel so I'm pleased I got one. I decided to paint on the lettering rather than use the stickers, but the stickers are a great idea for those who don't enjoy the entirely optional painting and finishing.


    For mock rivets, I used the little rubber pads for stopping draws and wardrobe doors banging.