30pcs 12 Volt 3mm UV LED Lights Emitting Diodes Pre Wired 7.9 inch DC 12v Ultravoilet LED Light Clear Lens Small LED Lamps

If it was printed in anyway with a hollow infill then it needs to be cured someone on the inside as well. There are TINY UV LED lights you can use for that on Amazon, but it may be too late for this existing model if it’s starting to warp.