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Offline HotRoderX

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bad switches?
« on: Fri, 02 February 2018, 16:09:17 »
Whats the chances of getting some bad switches in a pack? Give a little context. I have had this K-Type since December. I have used Halos (To test with) > Tealios > Kailh Pro Purples for about a week. Today I got in some Box Black switches. I went about switching all my switches out got everything done. Started typing and had double types on a number of switches. I ended up doing a bit of trouble shooting and figured out the issue is the switches in question. I can even replicate the issue with the switches I think are bad which is 7 so far. Is this common? I mechanically can't think of anything that would cause a malfunction in a switch. Then again when you can change a piece of equipment out and it resolves the issue. Then the answer is clear. I was just wondering is it common practice to test switches before building a keyboard in case of issues? I got lucky the broken switches are being used on a hot swap board. 
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Offline Tactile

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Re: bad switches?
« Reply #1 on: Fri, 02 February 2018, 16:22:08 »
Cherry spec the debounce time of MX switches at 5ms or less. If the controller is programmed for this timing... What is the debounce time for the new switches?
« Last Edit: Fri, 02 February 2018, 16:48:52 by Tactile »
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Offline Leslieann

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Re: bad switches?
« Reply #2 on: Fri, 02 February 2018, 16:44:52 »
Could also be they got too hot during soldering.
They may use a plastic with a lower melting point than you are used to.
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Offline HotRoderX

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Re: bad switches?
« Reply #3 on: Fri, 02 February 2018, 16:58:40 »
Quote from: Tactile on Fri, 02 February 2018, 16:22:08
Cherry spec the debounce time of MX switches at 5ms or less. If the controller is programmed for this timing... What is the debounce time for the new switches?

I am honestly not sure but that might be a possibility thought found majority of the switches are working fine so far

Quote from: Leslieann on Fri, 02 February 2018, 16:44:52
Could also be they got too hot during soldering.
They may use a plastic with a lower melting point than you are used to.

These where not soldered in. The board uses hot swap sockets.
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Offline Leslieann

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Re: bad switches?
« Reply #4 on: Fri, 02 February 2018, 18:21:23 »
May be a bad batch, it happens.

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Novelkeys NK65AE w/62g Zilents/39g springs
More
62g Zilents/lubed/Novelkeys 39g springs, HK Gaming Thick PBT caps, Netdot Gen10 magnetic cable, pic
| Filco MJ2 L.E. Vortex Case, Jailhouse Blues, heavily customized
More
Vortex case squared up/blasted finish removed/custom feet/paint/winkey blockoff plate, HID Liberator, stainless steel universal plate, 3d printed adapters, Type C, Netdot Gen10 magnetic cable, foam sound dampened, HK Gaming Thick PBT caps (o-ringed), Cherry Jailhouse Blues w/lubed/clipped Cherry light springs, 40g actuation
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w/ Kailh Purple Pros/lubed/Novelkeys 39g springs, HK Gaming Thick PBT caps, Netdot Gen10 Magnetic cable
| PF65 3d printed 65% w/LCD and hot swap
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Box Jades, Interchangeable trim, mini lcd, QMK, underglow, HK Gaming Thick PBT caps, O-rings, Netdot Gen10 magnetic cable, in progress link
| Magicforce 68
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| YMDK75 Jail Housed Gateron Blues
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J-spacers, YMDK Thick PBT, O-rings, SIP sockets
| KBT Race S L.E.
More
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More
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| GH60
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| Logitech Illumininated | IBM Model M (x2)
Definitive Omron Guide. | 3d printed Keyboard FAQ/Discussion

Offline Puddsy

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Re: bad switches?
« Reply #5 on: Fri, 02 February 2018, 18:32:10 »
Quote from: Leslieann on Fri, 02 February 2018, 18:21:23
May be a bad batch, it happens.



most likely

could also just be some bad luck
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Offline brainT

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  • Location: Maine
Re: bad switches?
« Reply #6 on: Fri, 02 February 2018, 19:35:28 »
I picked up a 5 pack of Box Blacks to try out and they all have chatter issues if you wiggle the stem back and forth while they're depressed which doesn't happen if I swap the stems into different housings. 

Bad batches happen so when I order more I'll just buy extras.
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Offline pixelpusher

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Re: bad switches?
« Reply #7 on: Fri, 02 February 2018, 20:33:14 »
I had this issue with a bag of pale blue box.  Almost all had the chatter when you pressed down and wiggled. Luckily it was a hotswap board.  Mike sent me replacements and they all worked fine. Bad batches happen for sure
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Offline HotRoderX

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Re: bad switches?
« Reply #8 on: Fri, 02 February 2018, 20:36:01 »
Thanks everyone I was kind a scratching my head. Cause with how the switches are constructed I thought short of corrosion they would work. These are box blacks and I bet its the same thing when the stim wiggles it chatters. I tested the switches in another hotswap board and all 10 did the same. I am still testing to make sure there isn't more broken ones glad I am not crazy
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