I'm sure everyone's seen that viral video about the chinese lidar laser AA station that kills mosquitos or whatever, and I'm not talking about that.

I'm talking about something more along the lines of those "Bug-A-Salt" things, I want a short range man portable "fly swatter". How realistic is it to buy shit off of amazon/temu and make some kind of DEW with sufficient power to kill insects in a ~5 foot range in a SINGLE pulse, I'll just use like... wood and other gun stuff I have lying around (foregrips, rails, some cheap reddot) to make the body of the thing. The supremely important thing about this is I want this to be strong enough to fry most insects (fly on the wall/curtains, house centipede on the floor etc...) at very short range WITHOUT collateral damage against wood floors, standard painted drywall, curtains, etc... common interior household surfaces

Like I know you can get some pretty strong lasers, but the whole point of this is using it inside the house and not setting shit on fire or staining them. I don't know a damn thing about lasers, I know you probably want pulse vs sustained beam or something if you can't hold the beam on target for an extended period, but as mentioned earlier, I know this isn't a get the highest power # and to guarantee the kill, it's really that sweet spot of killing the bug but not damaging whatever it was on. I have zero doubt that some rust stripping laser will kill a bug, and I'm pretty sure it'll fuck up whatever the bug was standing on too.

Is this viable to macgyver together with shit you can get online and at your local hardware store? or not really?

The smack it with a rolled up magazine method still works fine if this is a non-starter

>>2931698 (OP)
Your target is small and light and dry and anywhere between 2-15’ away and you don’t want to damage the wall thats 1/8” further away

You’d need some really really good expensive optics and something to determine the exact distance of the fly instantly while you trigger. Or some way to measure the exact right amount of power needed, but the required precision would be insane

>>2931701
ouch yeah figured it'd be something like that, and I really was hoping it could be done with some cheap off-the-shelf common rating pre-built stuff (which would introduce a whole other level of shenanigans with the super cheap stuff to my understanding having pretty variable output; at which point, the accuracy of your rangefinder will become irrelevant). I'll just stick with ol' reliable I guess

also the wall's much less than 1/8 away, I'm not looking to shoot crap out of the air, just fry it while it is standing on surfaces instead of having to smack it with a rolled up magazine when further away, or grab it with a piece of paper to crus when closer. which I suppose would make the overall tolerances much much much tighter, which destroys any chances of it being a cheap DIY

not what I was hoping to hear, but good to know before wasting a few hundred bucks to make something that'll stain the drywall paint or burn the wood floors or curtains

>>2931698 (OP)
It will be extremely expensive
Any laser that can destroy an insect in a single pulse is strong enough to cause permanent eye damage with just a few percent reflection. Visible light is absorbed near the back of the eyeball and short pulse lasers can create shockwaves/explosions upon absorption that will cause your eyeball to bleed internally and swell with blood. Not fun

>extremely expensive
KEK!
>picrel
slap driver and optics on
you solve your traget acquisition and positioning
do not ever get it wrong
and your computer better understands what a reflective surface is and checks for it

Depends on what kind of compromises you're willing to make. If you only ever shoot flies that land on masonry walls or drywall, then you can probably get away with any powerful enough handheld laser, but you may still get some smoke darkening the surface. You will never achieve the level of precision required to kill them on any surface without damaging the underlying surface, there are far too many variables, notably also your own hand aim.
Another thing is that a laser strong enough to kill a bug in a few seconds is easily strong enough to destroy your eyes, so you'd always have to be wearing safety glasses whenever you want to laser a fly, which probably reduces the convenience to near zero.

Tech Ingredients has laser stuff if you really want to delve into it, but it really isn't suited for what you want to do.
https://www.youtube.com/watch?v=IrocytwdeEY

>>2933106
how much is pic related?