Simple Core for Poinsettia

A simplified core for Keenan's Poinsettia print, it helps particularly on a higher-speed printer to have less and thicker stems on the core than more stems that are thinner. I found the original to be very brittle no matter how slow I ran my Bambu X1C, but this one came out very nice.

I did increase the x/y size slightly as well, it snaps into place quite well but still has a little more play than I'd like on my Bambu printer so it could stand to be sized up again, I think Arc Fitting really dials in the dimensions / accuracy of a print like this and creates that extra space.

I have NOT tested this on a non-Bambu printer. I've uploaded a 3mf file with 4x of the cores that works well for me. 

Thicker and fewer stems on the core for easier printing.