I know some sabers have been built with an activation box card resting on top of two tactile switches (or plungers) to where you press down on one end of the card to activate switch 1 and the other end of the card to activate switch 2. In order for the card to "rock" so that it can be used to activate either switch, I'm guessing that the T slot in the activation box is a bit taller than the card is thick. As such, I'm also guessing that only pressure from the tactile switches is preventing the card from sliding out of the activation box. My question is this, is this setup prone to making the card unintentionally slide out from the activation box from either end? If so, how frequent and annoying is it? Please let me know. Thanks.
Post by dayadjocen on Jan 15, 2020 15:29:07 GMT -5
So there are three ways this is done that I have seen:
1.) as you describe. The card is thinner than the rail slot and the tactile switches are friction fitting against the card to help prevent slippage. In this case yes it can indeed slide away and be annoying. The proper tuning and fit of the tactile switches to be tight but not actuate is key. Also sometimes folks will drill shallow detents in the underside of the card to help maintain this as captive but not so deep that the card can not be slid open.
2.) I have seen on like the OR boxes super tiny grub screws on each side of the rails to help screw in to the center of the card from the sides to captivate and also help the fulcrum.
3.) similar to two but but nylon screws from the underside of the card rail plate that screw up to the bottom of the card and create a friction / tension against the card.