Help needed:School laser project

[Jmanandrake]

For school I need to build a laser, preferably one that is quite strong and if possible can burn through duct tape. Can anyone suggest a model and instructions on how to make one.

Thanks

 

[Gun]

THIS thread is very useful, it explains all the components and things needed to build a laser. There is also THIS video which I found helpful.

 

[norbyx]

You really need to use the search button, if you don't manage to understand how it works, than you more likely wont have the capacity to build a laser....

 

[Antharak]

On this page just above the start of the thread is a long black bar with a white box, that says Google advanced search. Use that and all of your questions will be answered.
I suggest you start with eye safety.
Don't take this the wrong way I really am trying to help you.

 

[Fiddy]

don't bring a laser that can cut tape to school.

 

[Gun]

^ Yeah, lol. It does seem like a strange request for a teacher to ask you to build a high-power laser .