Yeah, this is my second batch. A LOT more reliable ignition with the hack.Nice, have you tested any of them yet?
Thanks, Chris! I confess -- I am leaving the cornstarch on. But it still highly increases your chance of lighting motor.From Chris' blog (hcmbanjo), Aug. 2018:
https://modelrocketbuilding.blogspot.com/2018/08/estes-starter-igniter-upgrade-update.html
Thanks, Chris! I confess -- I am leaving the cornstarch on. But it still highly increases your chance of lighting motor.
What’s special about fabritac glue? Are there substitutes?
What’s special about fabritac glue? Are there substitutes?
It must be oblivious to everyone except me, but what is the process? Mix 4F with Fabri-tac and coat the loop? How much of each?...
That's my process, although I do not soak off the corn starch.I just tried it the other day. After soaking off the coating, I squeezed a bead of glue to the tip of the bottle's nozzle and just carefully dipped each igniter into the nozzle, then into the loose BP in the cap of my bottle.
Haven't used them yet, but they look good
You can buy it anywhere they sell supplies for muzzle-loading weapons. Many gun stores do not carry it. Call ahead.Quick question about the black powder.
Do you need some sort of permit or can I just go down to the local hunting supply shop and buy some?
low explosives users permitWhat is a LEUP? I tried to look it up but nothing relevant came up.
Or just ask someone at a launch or a vendor, they mave have some and be willing to share. If you own a Muzzleloader or Blackpowder firearm you do not legally need any permits to purchase (some municipalities do have storage restrictions so check, usually its no more than 50lbs....).You can buy it anywhere they sell supplies for muzzle-loading weapons. Many gun stores do not carry it. Call ahead.
When you buy it, you sign a book for the government. Legally you are supposed to submit a LEUP to the ATF, and buy a specialized lockbox to store it in.
The government (local, state, federal) needs probable cause to look into your personal business. Get the LEUP, or make sure you don't give them probable cause.
I am not a lawyer and no one should ever listen to me.
Pyrodex is a smokeless BP substitute that some people use as an ejection charge with varying results. I don't know if anyone has tried it with Estes igniters.Well I would like to prepare the igniters BEFORE the event
I saw that a local Bass pro shop sells something called "Pyrodex" would that also work?
Everyone now knows that the the current igniters that Estes is forced to include with their engines are a fizzle. Instead of a launch outing being fun and exciting, it's now an exercise in burned ignites and frustration. Recently I did a demo for kids and out of 6 igniters we got 1 actual launch. Last MDRA launch I watched as repeated low power rockets simply burned their useless Estes igniters without launching.
It struck me that there had to be a simple safe solution out there somewhere. Of course the high power folks at MDRA use thermite dip or a ping pong ball concoction et.al. to make their personal Estes igniters work. But the average low power rocketeer isn't going to mix such stuff and I was restricted from mixing thermite after that hole burned into the playground incident when the fire marshal told me, "I'll let ya' go without jail time if you promise to never mix that (bleeping) thermite again, and you buy that lady a new stroller." ( I figured that was a good plea-bargain).
So, I did what everyone should do when they have such a question... I went to therocketryforum.com and nosed around. The most simple and safe solution that I found there was good ol' nail polish! As long as it is a nitrocellulose or methylcellulose and not an acrylic- it can be applied, allowed to dry over night and makes for a far better ignition.
Attached here is brief study of assorted igniters.
My goal in mentioning this is to, not only improve the experience of being stuck with the current Estes igniters (why they were forced to change to these is another story in itself), but also to avoid the hazard of people feeling compelled to revert to match-lit fuses.
IIRC isn't the powder in firecrackers actually flash powder a particulary static sensitive compound? Whats the difference between dipping an igniter in a BP mix and putting BP in the nozzle, the end result is the same. Advantage to dipped is I can do a hundred at home and not add an extra step on the field. Either method will work.Forgive me for being old school, and having no practical experience with Estes Starters. I'm not sure we need to remanufacture or dip Estes starters. What I would try is getting a puffer tube from a powdered graphite dispenser and re-purposing it to dispense small quantities of BP. Just puff a tiny bit into the nozzle before you install the starter and plug. I'd unroll a small Black Cat or similar firecracker and put the BP in the puffer tube. If you can't find a convenient source of small quantities of BP, I'd try carefully grinding a sparkler. Also, many rocketeers scratch the "propellant" grain to remove any clay covering the propellant grain to expose it for ignition. Some even use a small drill bit. Perhaps one could free up just enough powder to improve starter reliability. I have not tried this and as such I cannot recommend it, but is does sound better than buying a dip kit or a pound of BP.
My favorite igniter is the classic Estes Astron igniter. I could cut the igniters apart to make the leads on the center igniter a little longer. This enables me to easily twist the leads together for cluster launches without fear of breaking a bridge wire. I don't know what the insulating coating is, but sure isn't corn starch.
Or just ask someone at a launch or a vendor, they mave have some and be willing to share. If you own a Muzzleloader or Blackpowder firearm you do not legally need any permits to purchase (some municipalities do have storage restrictions so check, usually its no more than 50lbs....).
IIRC isn't the powder in firecrackers actually flash powder a particulary static sensitive compound? Whats the difference between dipping an igniter in a BP mix and putting BP in the nozzle, the end result is the same. Advantage to dipped is I can do a hundred at home and not add an extra step on the field. Either method will work.
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