I was making a playground for a niece/nephew and felt it needed a swing set to go with it. I used the chain part and the part that clips to the chain from another 3d print by Griffon53. The rest was created by me. The bend to the sides of the frame is to make it so it would fit on my printer bed. Some supports are needed. The chains need a raft. The tire is in 2 parts I did that so a raft isn't needed but supports are suggested for the clips part. If using a raft some sanding will be needed. I suggest printing the tires separate from the frame in case you do have issues with printing the tires. Since it is in two parts if using rainbow filament you might want to print them separate to make the color change flow better. The frame needs some supports all depends on how you lay it on your bed. You can change the chain size based on how tiny you want the chains to be but if too small it might slip threw the clips. Same as larger could make it harder to clip into the clips on the seat and swing set frame.

I printed the items as 100% infill but that was because I wanted to make sure it was solid. I am not sure if it would print just as well with less infill. I still recommend 100% infill because of the clips on the parts sometimes get weak.

I repaired them in my slicer before saving the stl files again to give them better titles. It might still say you need to repair non-manifolds. These were manifolds I couldn't fix in blender without it ruining the objects or multiple days of more trouble shooting past what I already did.