#Lekker Spring Replication

1 messages · Page 1 of 1 (latest)

wispy iron
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So... Unfortunately I type the most accurately and fastest on wooting (in digital mode). Now I say unfortunately because as a keyboard enthusiast the switches themselves sound less then appealing despite all the mods. Digital profile is 2.0mm actuation and of course im bottoming out at 4.0mm.

My question is what is the closest aftermarket spring that replicates the feel of the lekker switch?

It looks like the actuation is 40g and bottom out at 60g. Spring length seems to be around 15mm. So if I were to buy lets say a 15mm mx style single stage spring at 60g would the be close to the force curve of the lekker switch?

Any refence material on force graphs you have would be most appreciated.

lime tinselBOT
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steep inlet
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measurements posted by mansen
#archived_the_lekker_switch message

i should note that the spring sizes are a bit unique to common springs used in other switch's due to the Slightly wider Stem /bottom housing base to account for the magnet
as they may not fit best to check

and would check if the metal of the spring is non ferrous as i might stick to the magnet

strange gyro
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There is no "aftermarket spring" as such. You'll have to take a gamble on aliexpress for springs of the right dimensions, that aren't magnetic

wispy iron
hollow jackal
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But how would you use the switch if the spring is magnetic? It would affect all its inputs

strange gyro
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Yeah that's definitely a no go. Our very first production of the now discontinued L50 spring pack was made with magnetic metal by the factory due to some miscommunication. We had to refund/replace every single one shipped to customers, because they were causing noticeable sensor interference.

plain basin
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He wants the feel of a lekker in a normal switch

wispy iron
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Guys I'm trying to make a standard cherry MX style switch with the same spring curve it's NOT for the wooting. Why would I be trying to replicate the springs and put it in same keyboard? That makes no sense.

strange gyro
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You're asking for help on the Wooting discord, in a Wooting subforum.

Why would we assume otherwise?

wispy iron
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I asking about a wooting product. so yeahhhhhh...

Can we read the original question "So if I were to buy lets say a 15mm mx style single stage spring at 60g would the be closet to the force curve of the lekker switch?"
If you cant provide the answer the perhaps you can give me the published force curve of lekker springs or transfer me to a wooting engineerblobfacepalm

strange gyro
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No explicit mention of this being a non Wooting project.

Just to be argumentative while cooking dinner. But regardless you're probably better off asking in a more generalist keyboard Discord or on the mech keyboards subreddit

Screenshot_2023-08-29-19-00-22-96_572064f74bd5f9fa804b05334aa4f912.jpg
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The community here is fairly Wooting centric

wispy iron
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Anders sir, I literally ask about the closest aftermarket spring in the next paragraph

strange gyro
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Sure. And there are other hall effect switches out there.

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We've had a lot of folks asking about Gateron's own HE switches for example.

wispy iron
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I'm not trying to be rude so let me try and rephrase this.

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Do you have a force curve of the 60g lekker switch spring?

steep inlet
sleek idol
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its a normal linear spring "curve"

wispy iron
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Test passed! I mention these measurements in my initial question. I was asking again to see if I was being clear enough.

All I was asking is if someone on here already knew of a cherry mx spring combination the replicated the lekker spring curve. You cannot just buy the same length spring and actuation force as the diameter affects the force curve. The Lekker spring cylinder is 5.5mm vs 3.8mm on a cherry MX spring. This changes the pressure a spring gives given the same curve.

sleek idol
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im not aware of any mx springs with the same start and end force

wispy iron
sleek idol
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i think youd have a sort of hard time to replicate the feel of a contactless switch though especially in the beginning of the press

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a normal contact switch has the spring also fight the force of the contacts trying to push the stem down

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as they wanna rest normally closed

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so your best bet is probably aiming slightly higher in starting force

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also in general the stem would have a different weight and thus it feels different

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then we also get into variances of usually 3-5 cN +/-

wispy iron
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Yes the resistance of the leaf among other factors will play a roll. However we can compensate for this by changing spring coil profile and length. Generally the shorter the spring the more linear (increase in Y being force) the actuation would be. So id want a shorter spring to give me the widest range of actuation vs bottom out. The problem is that the width of the lekker switch makes it very unique in its physical response vs its physical properties.

wispy iron
sleek idol
wispy iron