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"In the world of spuds today"

A place to ask general spud cannon related questions.
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Re: "In the world of spuds today"

Unread postAuthor: mark.f » Sat Oct 26, 2013 7:20 pm

Prepare for POLAND_SPUD's face to melt off.

Prototyped most of the "blocks" already. Finished product and cannon incoming.
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Re: "In the world of spuds today"

Unread postAuthor: jackssmirkingrevenge » Sat Oct 26, 2013 9:33 pm

Eeeeeeenteresing... finally your signature makes sense ;)

I have to say that on this side of the Atlantic, my eyes are being opened to the possibilities offered by electronic controls...
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Re: "In the world of spuds today"

Unread postAuthor: mark.f » Sat Oct 26, 2013 11:17 pm

I've highlighted the source of most of the added complexity... I'd say it's worth it. I bought a DPDT switch as a backup, though. :lol:
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Re: "In the world of spuds today"

Unread postAuthor: pneumaticcannons » Sat Oct 26, 2013 11:19 pm

YES, Jack, join us :D
And very nice mark. May I ask why you didn't choose to go with a micro controller? But it's very cool that you're willing to design you're own analog circuit when there are lazy fecks like me around :lol:
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Re: "In the world of spuds today"

Unread postAuthor: jackssmirkingrevenge » Sun Oct 27, 2013 6:51 am

mark.f wrote:I've highlighted the source of most of the added complexity...


Looks like the treasure chest from the "Dag for a day" episode of angry beavers :D

*aaaahhhhhhhh*

hehe
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Re: "In the world of spuds today"

Unread postAuthor: POLAND_SPUD » Sun Oct 27, 2013 7:13 am

I am with pneumaticcannons on this - Why didn't you use a uController ?

ohh and speaking of electronics - I am thinking on doing some tests on a new iginition system
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Re: "In the world of spuds today"

Unread postAuthor: jackssmirkingrevenge » Sun Oct 27, 2013 7:15 am

POLAND_SPUD wrote:I am thinking on doing some tests on a new iginition system


... for the POLSKA_HYBRIDA we haven't seen yet? ;P
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Re: "In the world of spuds today"

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Re: "In the world of spuds today"

Unread postAuthor: POLAND_SPUD » Sun Oct 27, 2013 7:29 am

Well yeah I might get back to spudding
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Re: "In the world of spuds today"

Unread postAuthor: mark.f » Sun Oct 27, 2013 7:55 am

POLAND_SPUD wrote:I am with pneumaticcannons on this - Why didn't you use a uController ?


It's just what I like to do. I still have an arduino micro I could use, but I enjoy fooling around with analog circuits.

POLAND_SPUD wrote:ohh and speaking of electronics - I am thinking on doing some tests on a new iginition system


What kind of ignition system?
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Re: "In the world of spuds today"

Unread postAuthor: POLAND_SPUD » Sun Oct 27, 2013 8:14 am

What kind of ignition system?
One based on NIchrome wire, but the difference is that I want to see if I could make it work in less than 100ms or so and for hybrids.
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Re: "In the world of spuds today"

Unread postAuthor: mark.f » Sun Oct 27, 2013 8:18 am

Ah, OK. Certainly the best way to ignite very high mixes without a beefy high-voltage igniter.
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Re: "In the world of spuds today"

Unread postAuthor: Gun Freak » Sun Oct 27, 2013 5:54 pm

During a college visit yesterday I stumbled upon these rigs and had to ask the guy what the heck they were.

Long story short, it's a stainless steel pipe that is fed metered air and fuel via computer-controlled solenoid valves and undergoes DDT at a rate of 20 Hz. I said to the guy "now THAT'S a golf ball cannon!!!" :D
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Re: "In the world of spuds today"

Unread postAuthor: jackssmirkingrevenge » Mon Oct 28, 2013 6:05 am

Gun Freak wrote:I said to the guy "now THAT'S a golf ball cannon!!!" :D


At which point your name was added to some sort of watch list ;)

Impressive setup, are they using oxy/acetylene?

pneumaticcannons wrote:YES, Jack, join us :D


gooble gobble :shock: :D
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Re: "In the world of spuds today"

Unread postAuthor: Gun Freak » Mon Oct 28, 2013 6:36 am

jackssmirkingrevenge wrote:
Gun Freak wrote:I said to the guy "now THAT'S a golf ball cannon!!!" :D


At which point your name was added to some sort of watch list ;)


No, at which point he proceeded to say they tested it with a nerf pocket vortex :lol:

I of course asked where the hole in the wall was... Must've been hiding behind the 10 ft jet turbine... :D

It was currently being tested with a shop compressor... ~100 psi. I found it hard to believe they weren't using a scuba tank yet, but he said they were upgrading soon. And yes I believe the gas was acetylene.
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Re: "In the world of spuds today"

Unread postAuthor: jackssmirkingrevenge » Mon Oct 28, 2013 7:03 am

Gun Freak wrote:No, at which point he proceeded to say they tested it with a nerf pocket vortex :lol:


It was probably shredded before it even left the barrel :D
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