this model was originally by 3dprinting world on thangs https://thangs.com/designer/3dprintingworld/3d-model/Collapsing%20Jian-24803

This remix solves 3 problems I had.

1. to make the blades print separate so I only had to worry about clearances on those, like some of his other collapsing models. Prevents blobs and layer shifts welding the parts together (see last photo)
2. to provide a way to print the sword and hilt in different colors and layer heights
3. to be able to replace the blade when it breaks

The replacing ability comes from the pop off base I modeled into it. This is a very snug fit with only 0.15mm clearance to make sure its tight. There is a “loose” version with 0.3mm of clearance as well. If you need adjustments, you can scale on X and Y only by the appropriate amount.

Print the blades on a MK3 or Mini at 0.4 widths on both perimeters and default extrusion width settings. Set seams to random to prevent buildup of any blobs in one spot, welding it together. set elephants foot compensation to 0, and print with a brim. Max of 0.2mm layer heights on this for a smooth operation.

the hilt can be printed at any settings you like.

Place the blades in, and the cap on the hilt bottom, and youre good to go!

I've also included the original hilt not separated if you want to remix the cap somehow.