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  • 2 weeks later...
Posted
On 3/6/2026 at 6:47 PM, R0Sch said:

@SaperPL I've printed your XXL turntable on my P2S FDM printer in PLA (top) and PETG (bottom) and it turned out great! Still a little high friction despite of lubing it with grease, but I hope it will wear in. This part is huge and built like a tank, even though I used  50% sparse infill, it weighs 34g. As I said, the only thing that would have made this turntable even better was having inner gear teeth as well.
One thing I notice on the injection molded production part is that they made the grey bottom part a bit higher so that the black top parts thrust face is not on the same level as the bottom surface to not cause friction. They also changed from 4 large outer clips to 6 thinner ones to make the clips more flexible and fitment easier.

knubimu.jpegIlwcHlG.jpeg

I printed both of them in PLA for the prototypes I made and they did slide well, I don't really know how it'd turn out with PETG, since I feel like PETG is more flexible, I'd expect it also to have a bit more friction maybe?

And yeah, they did change some of the things for production - that was expected.

As for the teeth inside - I wanted to match the aesthetic of the current version of the turntable as well as allow putting of one inside another for example for transferring some additional inputs this way and the additional teeth on the same ring didn't feel like something that would make sense to me.

Also I've been considering a third piece that would be a gear rack sliding between those two with some hole openings to transfer additional rotation, but it I didn't figure out how to make those cut outs in a meaningful way at the time. Maybe I will follow up on this at some point as single additional input could be useful to drive gun elevation in tanks.

Posted
On 3/6/2026 at 6:47 PM, R0Sch said:

As I said, the only thing that would have made this turntable even better was having inner gear teeth as well.

Someone just commented under my video that there's a turntable like that in the Xiaomi Orion Six-Legged Titan Robot (XJXL03IQI):

This one is two studs bigger than the one I designed - the gap between mounting points here is 11 studs, while mine has 9 studs between the mounting points.

Actually, this would potentially be a good piece for my project, but I can't find it online...

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