Noob question thread! 2020_Summer

Par ici!

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I think the problem isn’t the loopkey, it’s that people just slap that shit on and go. It’s not hard to improve. Gotta get creative, add some finesse.

I love mine

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fancy. I wonder if one could make it flush with the enclosure.

You’d obviously still need something to grab to get it out again, but here’s no reason it couldn’t be flush otherwise.

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as long as it’s there that’s all the matters right? why would I need to pull it out unless it’s an emergency?

Depending on how your board’s power system is set up, the loop key is often the only power switch many builds have. If you don’t remove it, the board will never turn off, and will drain the battery.

In an emergency, you want to be able to pull it out easily, with no tools or fucking around, hence having something to grab.

I prefer nicer switches, but even still I keep getting bullied for not having a loopkey. bards also don’t take much power at all when not in use so unless you’re not riding or charging for more than a couple days it should be fine. the ~1V I’d lose overnight charges in a few minutes anyway so always-on doesn’t seem like such a bad idea.

You haven’t even seen bullying yet.

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I think “bullied” is taking it a bit far. It’s your board, and your prerogative to build it how you want. But the majority of builds use loop keys for several good reasons, and it’s up to you to decide whether you want to follow our advice or not.

Better, nicer witches do exist, for whatever definition of “better” or “nicer” you choose.
But I doubt you will find any that match the small size, simplicity, and low price of a loop key while still being able to handle the high currents involved.

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With any VESC that has a switch plug high currents aren’t involved, it’s just sending a signal to a MOSFET that handles the switching and can handle far higher currents than the mechanical switch that’s attached to it.

I have a question.

Why does tech.shit come in here asking a question but then try to teach us, when he has little to no experience and only a partial grasp on theory?

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I was referring to the tens to hundreds of amps that the power system draws when accelerating, not the inrush current.

Sure it can, until the MOSFET fails and suddenly your board won’t turn on or off. Mechanical switchs like loopkeys tend to fail less often, and less catastrophically, and are easier to fix or replace than a surface-mount component on your vesc’s PCB.

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I have had a couple VESCs get stuck in off position, I assumed they were fucked as I don’t have the skills to replace SMDs. I see the point. That was a great explanation.

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popcorns-crackhead-eating

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This is one of the big reasons we like loopkeys so much. Better to have a $5 plug fail than a $200 ESC, even if it is uglier and more cumbersome.

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i like to lick mine to turn it on

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If antisparks were so perfect as proclaimed so loudly, why would we all still be using loopkeys?

Besides all of the other benefits that have been expressed numerous times at this point

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Shhh my flipsky antispark is approaching it’s one year anniversary and is doing just fine thank you very much :joy:

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We need a small external switch that’s connected to a solenoid that drives a loop key into and out of position.

The perfect anti-spark switch!

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Would have to be pretty strong but that’s an interesting idea haha