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Toms Tennis Gun

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Unread postAuthor: Gepard » Thu Aug 09, 2007 1:42 pm

'cos all railway stuff is in Imperial isn't it? I've yet to come across something that is in Metric in the model railway world...

Dunno, the admin wouldn't let me on with Himszy so I used this one instead.

SpudYeti,

Not really - he does railways, I don't (can't stand them I prefer more "manly" projects that require welding and stuff :D )

We do.

Michael
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Unread postAuthor: spud yeti » Thu Aug 09, 2007 1:58 pm

I will look here in "land-of-metric" for whether its Imperial or metric; but Im guessing Imperial because its all imported probably.

I wonder why admin wouldnt let you have that name?

I guess making a real train could be manly :D
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really good quote/phrase here
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Unread postAuthor: hoarp001 » Thu Aug 09, 2007 2:53 pm

Yeah i know him, hes himszy off the UKSGC.

I do model railways, he does massive model submaturds....
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Unread postAuthor: spud yeti » Thu Aug 09, 2007 2:56 pm

can you post some pics of your railways here, because I think its pretty cool hobby (post it in non-spudgun area")
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Unread postAuthor: hoarp001 » Thu Aug 09, 2007 3:11 pm

ok

:P to micheal[/url]
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Unread postAuthor: Redcoat » Thu Aug 09, 2007 3:52 pm

Gepard wrote:If you didn't have the extremely-non-manly-hobby of Model Railways you wouldn't have made that mistake :P

Michael


DOn't knock model railways.I like them. :P

nice gun BTW, got any damage pictures.(i know its just a tennis ball.) :D .
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Unread postAuthor: hoarp001 » Thu Aug 09, 2007 3:53 pm

Not really, I haven't damaged anything with it....
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Unread postAuthor: spanerman » Thu Aug 09, 2007 3:57 pm

apart from your bank balance LOL, the BV is looking very nice :D i bets this is the most advanced combustion in the uk!
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Unread postAuthor: hoarp001 » Thu Aug 09, 2007 3:58 pm

I think it will be when its got the metering and other gizmos.

Tom is paying for it all, i just tell him what i need ordered and it arrives the next day... Im going to be sad to see it go when its finished
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Unread postAuthor: spud yeti » Thu Aug 09, 2007 4:00 pm

How much has he paid so far?
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Unread postAuthor: hoarp001 » Thu Aug 09, 2007 4:04 pm

Well if I dont include all the f*&$ups with the fittings, getting the wrong size etc and i dotn include the tools,

bout 180 quid with pipestock and he sent me a cheque for 48 to cover the spark strip, misc hardware and the barrels.

It will cost quite abit more caus i got the proper ignition to do (the spark box on the gun at the moment is my one) and i got the fan controller and the metering.
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Unread postAuthor: hoarp001 » Thu Aug 09, 2007 5:03 pm

Heres some pics of the valve endcap


Valve closed

Valve open

Just took them on my isight camera on my laptop so they arnt great
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Unread postAuthor: iknowmy3tables » Fri Aug 10, 2007 10:12 am

cool but am I the first to notice that you used sch80 on an arosol powered pneumatic sound like over kill to me why? I hear you don't get much option in the UK for parts, are you planning to one day make it a hybrid?
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Unread postAuthor: hoarp001 » Fri Aug 10, 2007 11:23 am

we dont do our pipe in SCHs but its 10bar (145psi) chamber, and 16 bar (232psi) for the fittings and barrel.

Its not actualy going to be aerosol powered when its done, im going to use propane metering.

We can get the parts easily but its very expensive, the fittings on that gun topped 200 quid... (400 dollars)
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