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can anyone identify this switch type, please? I've been looking all day at various websites. I'm just looking for a very simple touch sensor, and this seems ideal

photo of switch

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  • $\begingroup$ looks like it is custom made for a specific application ... it is similar to switch contacts in a mechanical washing machine timer .... the plastic tab on top would be operated by a cam ... your question is an XY type question ... you are asking for help with what you believe to be a solution to an unspecified problem .... please ask about the problem that you are trying to solve $\endgroup$
    – jsotola
    Dec 19 '20 at 20:42
  • $\begingroup$ the robot I'm working on drives along a rail. I want to detect when it hits the end. it's a light robot so the switch needs to be easily-actuated, like with a levered micro-switch. a detector switch woould be ideal if I could mount them easily, but I'm using a 3d-printed chassis, so easier to choose a switch type that I can screw in place, like the pictured one. if the pictured one is not something I can buy a load of, I'll just stick with levered micro-switches (unless, as you suggest, I'm solving the problem incorrectly) $\endgroup$
    – Kae Verens
    Dec 19 '20 at 21:20
  • $\begingroup$ another thing I like about the pictured switch apart from the easy actuation, is that it's flexible, so can "give" a little if the button is pressed beyond simple contact. $\endgroup$
    – Kae Verens
    Dec 19 '20 at 21:26
  • $\begingroup$ I will stick with levered micro-switches then, thanks :-) $\endgroup$
    – Kae Verens
    Dec 19 '20 at 21:37
  • $\begingroup$ thanks. I have a few optical sensors here, and did consider that (or lasers and a photoresistor) but thought that might complicate the environment. I'm trying to create a simple robot (and track) that can be easily replicated. $\endgroup$
    – Kae Verens
    Dec 20 '20 at 10:20
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It looks like a leaf switch. A search on AliExpress for "leaf switch" and sort by price gave me this

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  • $\begingroup$ Ayyy that's it! Great find! $\endgroup$
    – Chuck
    Jan 21 at 14:54
  • $\begingroup$ that's the one :-) $\endgroup$
    – Kae Verens
    Jan 26 at 12:57
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Looks like a broken limit switch. Something like this https://www.zencnc.com/product/limit-switch/

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  • $\begingroup$ no, that is not broken .... microswitches look different inside $\endgroup$
    – jsotola
    Dec 20 '20 at 17:37
  • $\begingroup$ @jsotola - If you've got an answer, please post it as an answer so OP can accept it. $\endgroup$
    – Chuck
    Jan 19 at 18:13
  • $\begingroup$ @Chuck I do not know the name of that switch type ... I have seen that switch type before and the one in the picture looks like an unbroken one ... I have also disassembled various microswitches for cleaning purposes and all of them had snap action mechanisms that included coil springs and cantilevers $\endgroup$
    – jsotola
    Jan 19 at 19:40

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