This spout for Testors paint thinner screws on easily in place of the regular cap and includes a spout that reduces spillage by 98%* ensuring more of the thinner goes where you want it instead of absolutely everywhere else but there. I've also included a plug to close off the cap and reduce the risk of spillage if tipped or knocked over, but this cap should not be used for long term storage and you should probably replace the stock cap back once you are done using this for the day.

Recommend printing at .16mm layer height, no supports required.

*Based on a 100% non-scientific study where I noticed that not using this spout results in a crapload of thinner going everywhere except where you want it to go and using it results in less of that.

Bambu Lab

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.16mm