Austin Healey Bugeye Sprite Ignition Knob

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Austin Healey Bugeye Sprite Ignition Knob Dean Hedin 4/23/2025

This is a very good reproduction of the Bugeye ignition knob. Apparently there are poor reproductions circulating.
The issues and impetus are discussed here: https://www.ahexp.com/forum/the-sprite-forum.6/be-ignition-switch-surround-moss-strikes.308605/

It is best to 3d print this on a UV printer using a black "ABS Like" Resin. I used Anycubic's "ABS Like resin" on a Photon Mono. I used medium supports as shown in the Chitubox layout image.

After post processing I recommend painting with several light coats of VHT Satin Epoxy spray paint. Allow a day or two to dry and then fill in the text with white silicone.

The part may be reproduced with an FDM printer. I have FDM printed one in ABS and it fit on the car no problem.
But you will not be able to reproduce the fine text inlay. A non text model is provided. In this case I recommend judicious sanding of the part (optionally perform acetone vapor smoothing) and then painting the part with VHT epoxy paint. For the lettering use rub on lettering like this:
https://www.amazon.com/Woodland-Scenics-Transfer-Railroad-Letters/dp/B000BRJCDS
As a final step apply a durable satin clearcoat.

In the cover photo left is the original knob, top center is the resin printed knob, right is the raw FDM printed knob.

Leave a comment and let me know what you think.

Feel free to reproduce and sell. Just give me credit for the design in the advertisement, or provide a link to this page.