Monday 24 April 2023

New Stuff on Tindie and more in the pipeline!

 



It's been a while since I restocked Tindie, and I only used to have a couple of products but a few things I've been making and building recently others said they would find useful so a few new items have made it to the store. First up is a remake of my popular Rocketry Screw Switches. The originals I used to CNC rout here in my lair, but finding time to run the machine was a faff, so I re-span the design to be able to get them produced by OSHpark meaning that I can restock them a little easier if they sell out. I won't waffle too much detail here but if you want a rugged set of switches that survive high g violence then these could be just the ticket whether that for a rocket or a combat robot or anything else!
Next up and new at the zoo is a kit of parts to make a Pull Pin style switch, excellent for remove before flight arming or there are options and features that make this attractive for low friction " Drop a payload with the pin staying on the vehicle" type systems!

Finally completing the trio of bits is a little assembled PCB which acts as a polarity protector, these are small enough to be soldered inline in a cable and covered with a little heatshrink, they can work at any voltage up to 20V DC and with a max current of 4.3A. If ever the power is connected backwards no current can flow through the board and both the board and the attached project will be undamaged. Connected correctly the little board draws less than a milliamp with no step down in voltage. Neat and can save your expensive experiment/avionics/altimeter etc on the other side! Check out the whole store here.


Tuesday 18 April 2023

New Pin Switch Video and Tindie store previews!



Been working on a few small projects and amongst them I've ended up designing, or redesigning some components that I think might be of interest for others, so over the next couple of weeks I'm going to get put some of these up on my, long neglected,  Tindie store. In the above video I'm doing a show and tell of some new pull pin switch assemblies which can be used as rocketry arming switches but also can be of use for payload drop mechanisms or other pull pin applications.  


I've also remade a version of my rocketry screw switches (although these are useful for any system that needs rugged violence proof power switching.. combat robots etc) I used to make these CNC routing them in my lair but that took a lot of time and I never got around to doing it so re-spinning the design means I can get the PCB fabricated by OSHpark. This means I should be able to produce stock quicker with less hassle for me, I plan to sell these in packs of 2 for $7.95, roughly £6.50.


Finally, I've also revisited my polarity protector board. These little boards only allow power through if they are connected the right way and therefore protect attached projects from reversed polarity. They draw a tiny amount of power (I don't even have anything capable of accurately measuring such small draw!) and can handle up to 20V input up to a continuous 4.3A. They are tiny and can be soldered into a wiring loom and covered in some heatshrink, or you can use them with pin headers, you could even attach the output to a breadboard. I'll put more details up on the Tindie listing when I get some stock built!