Screw Switch for arming electronics

Hey I am looking for switches for altimeters used for dual deploy. I have use the screw switch from Binder Design that is around $8. I am wondering if there is anywhere on the web that sells the same or similar kind of switch for cheaper?

Something similar...and cheaper

But, really? The 'twist and tape' method works well for me..Twist the leads from the switch terminal together, wrap with tape and then tape to the side of the rocket...

Anybody have any pictures of the featherweight installed in a rocket?

I have used the ones from Newton's 3rd and have had two fail on me. Both seemed to work great for a while, then I started getting poor connection. In Newtons 3rd dense, I may have screwed them down too far while arming and one of the switches went through a pretty bad crash???

I ordered a couple of the switches from https://www.doghouserocketry.com/ and so far so good (only two launches). I also like the twist method that Jon mentioned- just make sure your altimeter is compatible with this method.

I've tried that all, only the one from Binder Designs works.

https://binderdesign.com/store/page6.html

costs a little more , but worth it.

davdue said:

Anybody have any pictures of the featherweight installed in a rocket?

Click to expand...

I'm assuming your asking about featherweight's screw switch. I just used one on a rebuilt e-bay.

I drilled two holes in a small block of wood for the wires and epoxied it to the sled. I also needed to drill a cavity in the wood for the nut on the back of the printed circuit board. After soldering the wires to the switch I epoxied it to the wood block. I've attached some pics to better illustrate.

RandyL

Another vote for the Featherweight Screw switch--simple, light, easy to mount, works every time. And, just saw a fellow club member demo the new magnetic switch yesterday, and that is SLICK.

Stable1 said:

I drilled two holes in a small block of wood for the wires and epoxied it to the sled. I also needed to drill a cavity in the wood for the nut on the back of the printed circuit board. After soldering the wires to the switch I epoxied it to the wood block. I've attached some pics to better illustrate.

RandyL

Click to expand...

I had an old Radio Shack circuit board laying around, some old wire and spent a dollar or two on brass screws and nuts. I was able to make 6 switches similar to these. Simple, reliable, and less then $0.50 each.