XM8 Cap Vortex BBMG

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Qmyxpa0c1l34
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Fri Jun 17, 2011 3:01 pm

Hello everybody, this is my first BBMG. For this project i decided to go with a cap vortex design since it allowed me to use 3/4 in PVC, which fits in the body of the XM8. This design uses a 13 in PVC tube with an elbow and a cap. the trigger is just a simple blowgun trigger with a 1/4 in brass tube going out of the gun. The brass tube has a 1/4 in quick connect fitting. The other side of the blowgun goes to the cap vortex via a 1/8 in plastic tube which is connected to two 1/8 in brass fittings. The 6mm bb's are pushed into the cap vortex by a plunger. The barrel is 365mm long and about 6.1mm in diameter. Overall this gun performs well; 350 - 400 fps with .12g bb's at 50 - 75 rps. The gun is also very solid and strong. There is a link under this that will take you to a video of the gun shooting and I have also posted many pictures that show how i build this gun. Please leave comments and tell me what you think or if you have any suggesting/ questions. Thanks. (:

Attachments
The final product
The final product
The final product
The final product
The final product
The final product
The final product
The final product
The final product
The final product
The cap vortex and trigger mechanism apparatus completed
The cap vortex and trigger mechanism apparatus completed
The whole internal mechanism laid out
The whole internal mechanism laid out
The internal cap vortex system
The internal cap vortex system
The trigger mechanism
The trigger mechanism
The first part of the build required me to dermal out most of the extra plastic.
The first part of the build required me to dermal out most of the extra plastic.
This is the initial design done on sketch pad
This is the initial design done on sketch pad
Last edited by Qmyxpa0c1l34 on Fri Jun 17, 2011 10:51 pm, edited 2 times in total.
warhead052
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Fri Jun 17, 2011 3:10 pm

Wow, just wow. Thats incredible and very nice. Where did you get the body for the XM8?
Qmyxpa0c1l34
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Fri Jun 17, 2011 3:18 pm

Thank you very much, i got the XM8 body of Hobbytron. Here is a link http://www.hobbytron.com/SpringSM8Machi ... 16327.html[/quote]
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Fri Jun 17, 2011 3:26 pm

Thats cool... too bad its a vortex... How about a video?? :wink:
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warhead052
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Fri Jun 17, 2011 3:37 pm

Ah ok. Hobby tron does have alot of cheap stuff that works for what we need right?
Qmyxpa0c1l34
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Fri Jun 17, 2011 4:10 pm

warhead052 wrote:Ah ok. Hobby tron does have alot of cheap stuff that works for what we need right?
Yes, surprisingly the XM8 body is very durable.
warhead052
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Fri Jun 17, 2011 4:19 pm

How strong is it on a scale of 1 to 10?

Edit, Can you add some close up pictures of your set up? I would like to see the vortex assembly inside half of the body unless I missed the picture...
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cammyd32
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Fri Jun 17, 2011 4:46 pm

Good work there on putting your mech into a shell, how have you attached the mech in there?
Qmyxpa0c1l34
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Fri Jun 17, 2011 4:55 pm

cammyd32 wrote:Good work there on putting your mech into a shell, how have you attached the mech in there?
I grinned out the body to specifically fit the 3/4 in pvc tube
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The body
The body
Qmyxpa0c1l34
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Fri Jun 17, 2011 4:58 pm

warhead052 wrote:How strong is it on a scale of 1 to 10?

Edit, Can you add some close up pictures of your set up? I would like to see the vortex assembly inside half of the body unless I missed the picture...
The gun is about an 8 or 9.
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And here is a picture of the interior apparatus
And here is a picture of the interior apparatus
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cammyd32
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Fri Jun 17, 2011 5:06 pm

Nice work in doing that :D good job in getting it robust! I know how difficult it is to get a shell to fit something inside it perfectly, once I tried fitting a blowgun into a cheap pistol shell- 3 pistols later it still rattled. :D
warhead052
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Fri Jun 17, 2011 5:52 pm

Ok. Well it looks pretty good. Good job, I wish I had something like that.


Now heres a little task for you, try and make a regulator compressed air tank, small enough to carry in a back pack or strapped to your leg. co2 does not count.
Qmyxpa0c1l34
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Fri Jun 17, 2011 10:09 pm

warhead052 wrote:Ok. Well it looks pretty good. Good job, I wish I had something like that.


Now heres a little task for you, try and make a regulator compressed air tank, small enough to carry in a back pack or strapped to your leg. co2 does not count.
First of all thank you for the kind comment. Second I already have a design for a portable HPA setup. First, you would use a simple 3000/4500 psi 1-2 lbs tank. Second, you would hook up a Palmers Pursuit stabilizer to the HPA tank, which would then hook up to the quick release fitting on the blowgun. This set up would allow for thousands of bb's to be fired on one fill and give you the ability to regulate to airflow from as low as 60 psi to as much as 600 psi. This set up, however, would be expensive, running you around $170 usd.
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This is ruffly what the setup would look like.
This is ruffly what the setup would look like.
Female Stabilizer Remote Hose Assembly
Female Stabilizer Remote Hose Assembly
DSC03240.jpg (24.03 KiB) Viewed 6110 times
Generic HPA tank
Generic HPA tank
TKNDX45KL_big.jpg (24.96 KiB) Viewed 6110 times
warhead052
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Sat Jun 18, 2011 10:48 am

Where as you can get a empty 20oz co2 bottle, find a way to use a fridge compressor to fill it up to about 750 - 900 psi, and then attach a regulator to it and done.
soixe1997
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Thu Aug 11, 2011 6:41 pm

beastly :twisted:
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