Question about 301 Lasers

[cron]

So I just got a 532nm 303 and a 650nm 301 laser and while the 303 is working perfectly I'm having problems with the 301. Basically I want to focus it into a small dot but the focusing lens is causing a bunch of problems. It moves around and rattles even though my 303 is fine. Is mine just defective or is this just how 301's are?

 

[WizardG]

Yours is defective.

 

[Gazen]

It would be easiest to buy a new one as they are so cheap.

 

[paul1598419]

Those 650nm laser diodes in the 301s are not really focusable to a small point which is what you would need if you wanted to melt plastic or light matches on fire. They are just interesting little pointers really.

 

[GSS]

Cron, are you sure the knob or knobs is tight to the lens barrel that it's suppose to turn and focus? That will cause slop.. I say knob's as i'm not sure it has the extra star cap feature..