Summary

I used my inkjet printer to print the 'Tardis Labels.PDF' file (below), and was surprised at how well it did with a 2pt font.

For bonding PLA parts together I use TAP Acrylic Cement and their BD-25/2 Hypo Applicator. This Acrylic Cement is a solvent that melts PLA parts together within seconds, and if left to set overnight, the bond is stronger than the plastic. Only use this stuff in well ventilated space, and keep it well sealed when not in use. It is extremely volatile, and a full can of it will evaporate away in a few days if left uncovered. Storing it in a coffee can with a tight plastic top allows a can to last for months. And it is very fluid (like SuperGlue) so hold your parts in an orientation that ensures that any drips do not go onto an exposed surface of the model. 

If you put a light in it, the Tardis “Glass” parts will act as a light pipe for the 'Police Box' signs. Print the Tardis Top Light and Tardis Glass STLs in transparent PLA with 100% infill. For the transparent plastic parts, I would recommend using Polymaker Polysmooth Transparent PBV filament, which is printed using PLA settings. It has the best light pipe qualities that I've found, and it can be smoothed by spraying Isopropyl Alcohol on it. Other clear filaments don't propagate light more than a cm or so.

Print Settings

Printer Brand:

Bambu

Printer: 

P1S

Rafts:

No

Supports: 

Yes

Resolution:

Variable

Infill: 

15%

Filament:
Bambu Basic PLA Blue (10601)

Polymaker Polysmooth Transparent PLA