[EMS Discuss] nitrous oxide

Benjamin Hallert ben at vipmail.com
Thu Feb 13 15:25:16 PST 2014


Years ago, I bought a block of graphite for the purpose of milling into a rocket nozzle. I don't know if that's something you'd be interested in using, but I can bring it by the shop if you want to check it out. - Ben

On Thu, Feb 13, 2014 at 3:22 PM, Rick Osgood <rick at richardosgood.com>
wrote:

> Thanks Greg I'll keep it in mind.  I'm specifically interested in building
> a hybrid rocket engine this time but I might be able to learn something
> from him about his nozzle making process.  I'm hoping to learn to use the
> EMS lathe for this project though, once I get to that stage.
> On Thu, Feb 13, 2014 at 3:13 PM, Greg Norman <normgr00 at yahoo.com> wrote:
>> I have a friend that makes rocket engines with percalsium chloride if you
>> want to go the solid fuel route, AKA flash power. He's the other guy on my
>> pumpkin chunk'in team. I think he made a batch of the stuff using an
>> electrolytic process in his bath tub using a jug of bleach, other
>> chemicals, a car battery charger and copper plates for electrodes. He forms
>> rocket nozzles that stand the heat pretty good with engine gasket putty
>> from a car parts store. ABS is often used for his casings. Some of these
>> rockets were of the size he took out in the desert so they wouldn't hit
>> anything if they failed.
>>
>> He also makes uhh... we'll call them sonic identifiers out of the stuff.
>> My ears are still ringing.
>>
>> He would be happy to share what he learned and I can put you in contact if
>> interested. Actually he wants to talk to someone at EMS about quad copters
>> too.
>>
>> Greg
>>
>>   ------------------------------
>>  *From:* Rick Osgood <rick at richardosgood.com>
>> *To:* Bob Miller <kbob at jogger-egg.com>
>> *Cc:* discuss <discuss at eugenemakerspace.com>; Ben Hallert <ben at vipmail.com>
>>
>> *Sent:* Thursday, February 13, 2014 1:18 PM
>> *Subject:* Re: [EMS Discuss] nitrous oxide
>>
>> That should work for getting the n2o.  I just need a tank to store it in.
>>  I checked Autozone's website and they sell 10lb and 15lb "tank kits" but
>> they are like $500!  That's ridiculous.  I don't need anything specialized,
>> just a tank that these guys can fill.  I'm curious why those kids are so
>> expensive.  Maybe they are special light weight tanks or something.
>>
>>
>> On Thu, Feb 13, 2014 at 12:27 PM, Bob Miller <kbob at jogger-egg.com> wrote:
>>
>> Garage 808 has nitrous filling.
>> http://garage808.com/?page_id=270
>> Sent from my phone.  No type good.
>> On Feb 13, 2014 11:35 AM, "Benjamin Hallert" <ben at vipmail.com> wrote:
>>
>>  This sounds like a cool project. If you have a bottle, you might be able
>> to check with industrial welding supply to see if they would fill it. If
>> you are up for experimenting with very small quantities, cooking supply
>> stores often have nitrous oxide in little cartridges that look like CO2
>> cartridges for BB guns.
>>
>> A couple of years ago, I spent a week or so drawing and dreaming about
>> building a rubber fueled, nitrous oxide oxidized hybrid rockets to mount to
>> the trailer hitch on my car. It wouldn't produce very much thrust and the
>> size I envisioned, but I would technically have a rocket car for a little...
>> - Ben
>>
>>
>> On Thu, Feb 13, 2014 at 11:30 AM, Rick Osgood <rick at richardosgood.com>wrote:
>>
>> I've been thinking of trying to build a hybrid rocket for a while now.  I
>> want to use nitrous oxide as my oxidizer but I don't have much experience
>> buying or using industrial gasses.  Does anyone know a place in town I
>> would likely be able to purchase a small canister of the stuff?  I imagine
>> it might be difficult because of it's potential negative uses.  I'm hoping
>> someone here might have some experience with this.
>>
>> Thanks,
>> Rick
>>
>>
>>
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