DIY - How to Make a periscope

Dear All

I have made a periscope and now anyone can make it with the help of my design which is uploaded as a pdf file. Just download the pdf file (Download pdf), print it in the scale how big you want to make and just follow the simple instruction and get it done.
Here it is a photograph of the file which is uploaded as pdf


Here it is a photograph of final product.

There is a video which shows how we can do it in simple steps.

If you find any difficulty or query may write me.

Do make the periscope and leave the comments.