What size of wire do you use for your igniter/initiator blanks?
Lead wire or bridge wire? For lead wire I prefer “shooters wire” because it strips easily with just my fingernails and zips apart easily. https://aeroconsystems.com/cart/nichrome-resistance-wires/shooters-wire-2-conductor-22-gauge/What size of wire do you use for your igniter/initiator blanks?
Great photo. I have a bunch of 18 gauge shooter wire I got in an auction. I might use it for big motors.I use 24-gauge "shooters wire" for smaller motors (G-I mostly).
For larger motors I used 22-gauge solid twisted pair... it flexes less when installing into the core.
For really big motors I used solid 18-gauge "thermostat" wire. Thick brown jacket, very stiff. No support "stick" needed.
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Terry (Prfessr) gifted me a sample of his super thin magnet wire (thank you!). Not sure what the gauge is, but that stuff is super thin. For me I need the magnifier on my helping hands just to remove the insulation (with fine sandpaper) and have yet to attach nichrome.Ematch wire is 22 gauge solid. I use 30 gauge wire wrap wire for small igniters (13 and 18 mm Rx) They easily fit a .06" nozzle. I haven't found anything that will fit a .016" nozzle (end burning Micro-Maxx motors). Could get a full 1/4A with composite propellant (1/4A.3-3)
Terry (Prfessr) gifted me a sample of his super thin magnet wire (thank you!). Not sure what the gauge is, but that stuff is super thin. For me I need the magnifier on my helping hands just to remove the insulation (with fine sandpaper) and have yet to attach nichrome.
Here's a link to an example of 38 gauge wire that for sure would fit into an 0.016" nozzle. It's stated diameter is "0.0048 (with insulation), 0.004 (no insulation)"! https://www.amazon.com/TEMCo-AWG-Copper-Magnet-Wire/dp/B00LV90W6Q/ref=sxin_9_trr_310354011_2?cv_ct_cx=magnet+wire&dchild=1&keywords=magnet+wire&pd_rd_i=B00LV909HI&pd_rd_r=d4947656-6347-4076-be50-74a8f02b0d16&pd_rd_w=J97H0&pd_rd_wg=FoOFO&pf_rd_p=9e83fe05-f489-4685-b4af-0db60cbe7c15&pf_rd_r=7C59X996HB05K3X1B1H4&qid=1623816392&sr=1-3-5519553e-2baa-451e-af83-b0156e5c6669&th=1&tag=forumyield-20
If that 38 gauge wire is somehow too thick for ya, I also saw a 42 gauge roll that's 0.0026" in diameter unstripped. A 1-lb roll is 9.5 miles long and costs $30, and should be enough for a few igniters (if you can find them again after you build them). That's about as skinny as the thinnest human hair. https://www.amazon.com/Remington-In...gnet+wire&qid=1623816978&s=industrial&sr=1-30
Now that 42 gauge wire, even doubled-up, could probably fit up a mosquito's backdoor!
(they also sell an 80,000 foot 1-lb roll of 44 gauge...$37).
Cat5 spec is 24 gauge.I use scrap cat5 cable. there are several pairs of wire in there. Not sure of the gauge, but it works great. The ignitors I’ve made are end wrapped with nichrome then dipped in pyrogen.
Cat5 spec is 24 gauge.