This design is an orthogonal printed linear stage capable of a positioning accuracy in the order of 10 micron. Besides 3D printed parts it only uses 2mm metallic rods, a 40mm spring and a 55mm M3 bolt with nut and washer. The complete fabrication process is described in an instructable: https://www.instructables.com/Build-a-3D-Printed-Linear-Stage/

I also designed other linear stages and a micromanipulator compatible with this model, all the files and building instructions are available here:

Linear stages:
https://www.instructables.com/Build-a-3D-Printed-Linear-Stage/

Rotational stages (in plane):
https://www.instructables.com/Build-a-3D-Printed-Rotational-Platform/

Out-of-plane rotation (goniometric) stage:
https://www.instructables.com/Build-a-3D-Printed-Goniometric-Stage-tilt-Correcti/

Micromanipulator:
https://www.instructables.com/Build-a-3D-Printed-Micro-manipulator/