Periscope Parts Generator

There are a lot of periscope options to choose from

I decided I wanted an all print that was side enough for both eyes.

I also wanted to be able to print the entire thing at whatever length I wanted.

IWorkInPixels on thingiverse provided an scad to start with

I converted the scad file to do modular parts.

I have printed with walls as thing as .9mm but I did find a couple of things.

Mirror notes

THIN 1mm or less thick acrylic lenses distort easily. If you are going to use THIN acrylic mirrors you need to mount them on a thick firm base. The slightest warp will be amplified making a distorted view.

You can make a thick acrylic mirror base by using the "add_mirror_mount_thickness" and/or printing the Mirror mount plate, add the acrylic mirror and then glue the plate in place.
Visual quality is of acrylic not as good as glass mirror, but safer.
Real glass is heavy and you should take measures to make sure it cannot fall out and injure a viewer. For young kids look at the "simple periscope for kids" model. It puts the mirror inside and out of reach and has a lot of plastic wrapping the insides.
With glass mirrors I recommend gluing in the wedges in addition to gluing the glass to the body.

Printing

Select the dimensions you want for width and depth. Then for the tube height and/or extension height. You can also add tube height when printing the ends with the end_ext_height attribute.
Select the part you want to print... or the ALL-Preview to see a preview of the assembly.
I recommend printing an end first and make sure your mirrors print. Note the estimated mirror size in the print output.
Print at minimum the TUBE and two copies of the END (END1 and END2 should be the same)
EXTENSIONS: If you want to add to the tube length print one or more extensions as needed. Note the ends on the extension are a different combination from the main tube.
+Exterior brim the tubes and ends (if you print upright). Organic supports to the eye port opening may be required.

I have printed in PETG and PLA with no problems.

Assembly

I applied glue to the inside and outside of the ends and inserted into the slot, but you can do it ether way.
Make sure your tube remains straght after glueing and until it is dry.
Also remember to install the viewing holes on opposite sides to use it to see forward.
The connections should be a comfortable fit and will need glueing before final use.

The rendered STL files I am including was for some 50mm square arylic mirrors I had purchased. They were advertised as 2 inches square.

I had also printed a version for glass mirrors I had cut down to size. Being it was an odd size I did not include that.

Links to SOME other perisopes.

Fully Printable Periscopes
https://www.printables.com/model/370925-kids-periscope
https://www.thingiverse.com/thing:1859871
https://www.thingiverse.com/thing:3888153
https://www.thingiverse.com/thing:3140584
https://www.thingiverse.com/thing:4592072
https://www.thingiverse.com/thing:5278877
https://www.printables.com/model/447727-simple-periscope-for-kids-and-other-usage

Telescoping
https://www.thingiverse.com/thing:5275985