I started the first design but didn't get all that far before finding many mechanical problems. I have not started this version yet because I need to make sure the CAD version will be as easy to machine as possible with the equipment I have access to. Tolerances on this many moving parts are very tight and having a detailed plan before you start working will save a ton of time.
Secondly I would like to ask did you start constructing it yet or are you just in the design stage?
Posted 04 February 2007 - 11:44 PM
Posted 28 February 2007 - 06:05 PM
Posted 28 February 2007 - 07:22 PM
Edited by CaptainSlug, 28 February 2007 - 07:22 PM.
Posted 04 March 2007 - 01:07 PM
Edited by urbanfighter7, 04 March 2007 - 01:09 PM.
Posted 04 March 2007 - 08:26 PM
|Catagory 5 hurricanes are the mighty dick of God. You don't mess with that! You don't mess with Gods dick!|
Posted 09 March 2007 - 10:24 PM
Posted 09 March 2007 - 10:38 PM
Now, the feeding teeth rotate with the barrels in order to push the darts along a ramp that rolls the darts until they are lined up with the barrels so they can be ram-rodded into place.
The old design used a sliding breech, but that required far more space and was much more complicated to actuate. The new design only has one part being actuated by the rotation of the barrels.
Posted 10 March 2007 - 09:30 AM
Regardless, the way you've worked this whole thing out is still amazing to me, my mechanical building skill is minimal.
Edit: had a few missing commas, periods, capitals (very careful about that now)
Edited by Jergling, 10 March 2007 - 09:32 AM.
Posted 10 March 2007 - 11:40 AM
The rotation of the barrels and all of the mechanism attached to it work to cycle the darts. The ram rods get actuated forward to push the darts into the barrels by interacting with the cam track. The piece you see here in red.
They get retracted by an extension spring.
Once the ram rods reach the forward most position the trigger valve that's built into them releases the 10psi air supply and the dart fires.
The rotation also allows the feeding teeth to roll the darts into place against the ramp explained in the previous post.
Those are the only two things the drive motor actuates.
The electrical system triggers the solenoid valve that controls the air supply so that it's only vented when the trigger is pressed.
It also supplies power to the blower fan that feeds the darts through the tube feed.
The firing of the darts is a pneumatic action. An HPA tanks provides far more energy than a battery every could when it comes to firing a dart. It is down regulated a huge amount to conserve the tank, and to make the rest of the gun easier to engineer. The pressure level once it leaves the tank is only 10 to 15psi. The internal tank pressure can be upwards of 3000psi.
In other news I just sold a Nerf gun for more than enough money to help me purchase the initial supplies for this project. I just ordered the HPA tank and it's matching regulator.
Edited by CaptainSlug, 10 March 2007 - 05:08 PM.
Posted 10 March 2007 - 04:27 PM
...and ideas are bulletproof. "
Posted 17 May 2007 - 10:57 PM
I went ahead and researched actual vacuum conveyor systems and found out how they work.
The systems that don't have to lift heavy load use a ridiculously simple air jet coupling linked in the tubing to create suction through output flow. Making one of these would be very easy.
What it would accomplish is
1. Reduce weight
2. Reduce noise output
3. Reduce battery consumption (since it's an air powered part)
4. Remove the need to make the dart hopper air tight since it conveys by suction
5. Simplify the trigger operation (the trigger will only need to turn on the drive motor and the solenoid valve that lets gas operate the vacuum conveyor and dart firing)
I'm also interested in running experiments to see if this part alone would have enough power to fire darts in succession. I will try to make a prototype of this part some time soon since it doesn't involve any expensive materials.
Edited by CaptainSlug, 17 May 2007 - 11:01 PM.
Posted 18 May 2007 - 12:18 AM
Good luck CS.
Posted 19 May 2007 - 06:06 PM
Captain Slug, I couldn't have said it better.
Posted 19 May 2007 - 07:30 PM
Or maybe Boltsniper.
But probably CS.
I was playing with my titan, and I found my dads shotgun shells. The shottyshell shot fine but when it hit that rock it exploded.
You should have shot at yourself. You would have won a Darwin Award.
Posted 20 May 2007 - 07:32 PM
10 CS 12-round clips: $240
Immense ass-kicking firepower: Priceless
Posted 20 May 2007 - 07:47 PM
Posted 21 May 2007 - 04:48 PM
10 CS 12-round clips: $240
Immense ass-kicking firepower: Priceless
Posted 28 May 2007 - 01:58 PM
Posted 28 May 2007 - 03:19 PM
Now that I have a working paintball tank setup I can perform more practical component experiments and determine how best to proceed to make the gun usable in a Nerf War. The first obstacle to tackle is developing a working and efficient ammunition carriage and feeding system since that's the most complicated part to get working properly.
I'm not even going to think about making more than one yet. So the answer for now is: No
Edited by CaptainSlug, 28 May 2007 - 03:21 PM.
Posted 29 May 2007 - 06:32 PM
Posted 29 May 2007 - 07:05 PM
Edited by CaptainSlug, 29 May 2007 - 07:07 PM.
Posted 29 May 2007 - 07:35 PM
Posted 08 August 2007 - 11:49 AM
1. Weight as a handicap.
Nerf wars are fun because you can run around and dodge the incoming projectiles. Using heavier or bulkier weapons makes it that much harder to maneuver effectively in a war. Even using a comparatively light system weighing only 5 or 10 pounds has had a noticeable effect on my ability to maneuver in a round.
2. Psychological effect of overpowered weapons.
If you are perceived as a serious threat by the other players they will tend to avoid you or give you an abnormally large space cushion. In large open playing fields this can lead to slow standoffs. Add to this being weighed down to the point that it's difficult to chase people, you end up with fairly boring rounds.
3. Keep it simple.
A complicated weapon does not lend itself to reliability in a Nerf war.
4. Larger targets are easier to hit.
This really doesn't need an explanation.
There's no guarantee that this post is a death knoll for this project. But I do need to reevaluate the direction that this project is heading in. But to me I will never see the point in spending alot of time making something that I cannot actually use for the purpose it was intended for. The current mechanism will work, but I need to think about alternative means for ammo storage.
Edited by CaptainSlug, 08 August 2007 - 11:52 AM.
Posted 10 August 2007 - 05:54 PM
Posted 11 August 2007 - 06:45 AM
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