richard,
I use micro switches with a screw to arm them. Uses a small hole in the side of
the rocket and makes it highly unlikely that the electronics can be in
advertently armed.
Easy to 3d print the mount for it. I will send you a file tonight.
Side note, don't use PLA ( unless it is the pro spec kind) for parts, it can't
survive the temperatures on the lake bed. I'm using PETG or Nylon.
Mike K
On Jan 12, 2017, 6:47 AM, at 6:47 AM, R Dierking <applerocketry@xxxxxxxxxxx>
wrote:
I just purchased a PerfectFlite StratoLoggerCF altimeter and the
documentation came with a Switch Warning about failures of the 110/220
rotary switch that some people have been using for powering
electronics. High resistance and intermittent connection are noted in
the document.
The document says “numerous reports” of failures, but I’m curious if
this is a problem with a group/lot of these switches or a pervasive
problem to this particular switch or rotary-type switches in general
when used for rocketry. I’ve used these switches in the past and
tested the 4 I’m currently using on two projects. I’m not detecting
any problems with these switches.
Please keep in mind that there are several variations for this make of
switches. Here’s some info on what I have:
Schurter, Voltage Selector Switch, 2 Stages, Series-Parallel, SWA1 or
SWA2
Also, it’s interesting that the spec sheet says that the lifetime is
300 operating cycles (without load).
So, does anyone have a personal experience that was bad with these
switches?
Also, I think many people would be interested in recommendations on
arming switches both commercial and custom.
Thank you,
Richard Dierking
