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the DR.

Built a BB Machine Gun? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: sniper hero » Sat Mar 15, 2008 5:08 pm

this is my airgun "the dart rifle" I hope you like it
please tell me if you have questions
a video will come :D
the old chamber is still attachable btw

the pressure I use is about 10bar (sometimes 16 :D )
materials:
ballvalve
copper chamber
shaped wood
11mm ID barrel
pull springs
some gas pipe
elbow
T piece
adapter
bicycle valve
some scrap material
rope
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Attachments
CIMG0997.JPG
the gun
CIMG0998.JPG
close look
CIMG0999.JPG
trigger
CIMG1056.JPG
the new look
CIMG1057.JPG
CIMG1058.JPG
Last edited by sniper hero on Sat May 17, 2008 6:49 am, edited 2 times in total.
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coming: semi auto pellet sniper:D
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Unread postAuthor: DYI » Sat Mar 15, 2008 6:53 pm

What does the name stand for?

What is the operating pressure?

How's accuracy? Range? What weight are the airsoft rounds?

What's the estimated opening time for the valve, and what size is it?

What's the volume of the chamber? Where do you get 10mm airsoft rounds? What's the barrel material?

Why didn't you give all these specs to start with? :roll:
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Unread postAuthor: sniper hero » Sat Mar 15, 2008 7:23 pm

name:high power screw sniper (although the scope is still to come)
pressure:for now +- 4 bar
accuracy:I have to practise a bit but a can at 8 80%
ammo:my ammo is for now screws and it works fine
volume chamber: 1liter
barrel: aluminium (10mm is outside diameter)
opening time: ? I will post some video's tomorrow
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Unread postAuthor: elitesniper » Sat Mar 15, 2008 7:26 pm

Your chamber is a gigantic over kill :D.
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Unread postAuthor: pizlo » Sat Mar 15, 2008 7:26 pm

Well it isn't easy on the eyes, but its a start. A paintjob, and a better valve would make this thing much nicer.
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Unread postAuthor: POLAND_SPUD » Sat Mar 15, 2008 7:31 pm

you can easily convert it to 15 - 16 mm barrel suitable for marbles... since your chamber is HUGE it won't be any problem.....
also i think you should buy a full metal ballvalve (you know the ones with one long handle)
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Unread postAuthor: elitesniper » Sat Mar 15, 2008 7:35 pm

Or, since he already has that set up he can easily convert it into a barrel sealer :)
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Unread postAuthor: sniper hero » Sun Mar 16, 2008 5:53 am

ok so the ball valves with the long handle open quicker?
I don't know if I can find a marble barrel
but if I find is this lengt ok?
I know it looks a bit strange but its quite ergonomic.
I want to put a scope on it, has anyone suggestions for the best way
(it,s a scope for air rifles so distance between eye and scope is quite small)
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Attachments
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screw (ammo)
CIMG1005.JPG
scope
CIMG1007.JPG
scope
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Unread postAuthor: POLAND_SPUD » Sun Mar 16, 2008 6:49 am

if you use a ballvalve with a long handle you could drill a hol in that handle - so you could get rid of that piece of steel that turns the ballvalve

mounting a scope will be a problem on your gun because of the valve
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Unread postAuthor: sniper hero » Sun Mar 16, 2008 8:58 am

yes I know it's a problem but if I make it behind the valve it's the right distance between eye and scope :P



I found a piece of iron exactly fiting in the barrel with some tape it shoot trough a thin metal plate :D
the screws fit exactly too but are very light (1gram)
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Unread postAuthor: bluerussetboy » Sun Mar 16, 2008 9:20 am

Wow, that is fugly.
That 'springer' setup must make a ton of noise when you pull the trigger. Puhleeze, if anything make that chamber smaller.

BTW nice use of your rube goldberg gene.
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Unread postAuthor: ghostman01 » Sat Apr 05, 2008 8:37 pm

that screw looks like it has been into somthing with red liquid in it
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Unread postAuthor: pat123 » Sat Apr 05, 2008 9:26 pm

looks powerful, it needs a paint job though.

that screw looks like it has been into somthing with red liquid in it
:shock: uh-oh
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Unread postAuthor: ghostman01 » Sat Apr 05, 2008 11:38 pm

yeah i hope thats paint, lol
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Unread postAuthor: bigbob12345 » Sat Apr 05, 2008 11:55 pm

ajdevi92 wrote:that screw looks like it has been into somthing with red liquid in it


i was just about to ask that

Anyway nice gun
isnt the preetiest and the ball valve is definatly deacreasing performance but other than that I like it.
looks like a fun little plinkler
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