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Who knows a lot about microswitches?


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Old June 21st, 2013, 19:02   #1
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ThunderCactus's Avatar
Join Date: Feb 2007
Who knows a lot about microswitches?

Cause like....WHYYYYYYY

From a technical perspective, this thing makes absolutely NO sense what so ever in an AEG.
Is it just because they're mass produced so it's much cheaper than a regular trigger switch?
The contact face isn't nearly large enough to withstand arcing from an 11.1v LiPo, even though it reduces arcing, no mechanical switch can eliminate it.
They're not even rated for use in DC systems, they only have AC ratings on them
And they don't seem to get dirty, the contact faces just erode, so you can't just clean them, you have to replace them
With the amount of moving and interfacing parts in this thing, there's NO WAY it offers less internal resistance than a regular throw switch trigger
And worst of all, the bounce prevents you from using a mosfet of any kind!

So why the hell would anyone in their right mind use a microswitch in an AEG?!?!
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Old June 21st, 2013, 19:14   #2
"bb bukakke" KING!
Join Date: Jul 2011
Location: Ottawa
and this is why everyone on asm hates them :P

you can get mosfets with debounce code so you can at least get a mosfet in the gun, but you still have to periodically replace the damn switch when it decides to go apeshit.
I futz with V2s, V3s and V6s. I could be wrong... but probably, most likely not, as far as I know.
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Old June 21st, 2013, 20:15   #3
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Join Date: Jul 2011
Location: Calgary/Vancouver
they are t3h evil.

they feel nicer than a shuttle, but that's it. the downsides just aren't worth it.
too busy tinkering to play.
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Old June 21st, 2013, 22:21   #4
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Join Date: Nov 2005
Location: LÚvis (QC)
Cheaper is the reason...

bulk price is around 0.8 CENTS per unit (5k+ orders)

I would guess that the airsoft type triggers would cost around 2-3 cents each.

There is no carbon buildup for two reasons: there is some librification/protection from oxygen on the contacts, and the response time when triggered is a LOT faster that what a human can do.

However, better microswitches don't have bounce at all. But they cost 5-6$ each (again, bulk prices).

AC ratings is because theses switches are usually operated on analog circuits limit switches and or industrial environement. Because of the bounce, theses are no suited for precision DC electronics.
Originally Posted by Drake View Post
Damnit, don't make me add "no discussing temporal paradoxes" to the rules or I'll go back in time and ban you last week.
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