How to approach this snap fit to hold router bit

[EnoTheThracian]

I would do two arms in CAD with a round, empty space 0.2mm larger in diameter than the drill diameter. I’d stop the arms where their opening is 0.2mm smaller than the drill diameter. Add fillets for a cleaner look and better durability.

Or go fancy and embed a magnet. There are some really helpful posts by Bambu in the Community contributions for that route. Just one example:

Ways to Optimise a Magnet Socket

[1] Have you ever used round magnets and circular magnet sockets in your 3D prints? This practice seems simple. But you might still encounter some difficulties during installation. Why do we experience these issues? One of the reasons is that magnets vary in size. Additionally, minor design deviations and the printer’s accuracy limits affect how well the magnet fits the socket. Besides the factors mentioned above, material shrinkage during printing also affects the print results. You may hav…

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