Posted 27 May 2010 - 09:39 AM
Start with this:
Open it up to see the internals.
First thing to do is glue this little hose down. It is weak and expands, so I super glued it down and coated it in plumberís goop. Note: plumberís goop does not stick to the hose plastic, so in the future I will be replacing this hose.
Next I took the front piece off and boiled it in hot water until the glue gave way, this allowed me to not have to cut the pump handle. Do not cut the pump handle as it goes all the way into the pump housing only leaving the little piece that is glued sticking out.
For my pump handle I used a piece of 3/4 PETG pipe and epoxy puttied it to the stock pump handle to extend it, then I added a foam rod butt cap (fishing rod building material) to the end to make it comfortable to pump.
For the barrels I cut off 2 inch sections of OMC PETG and then used a 5/8Ē brass tube as the attaching sleeve. The original barrels have a nice funnel pinch point on them that holds the darts great and gives it a popping noise when shot.
The turret uses magnets to align the rotation, but when pulling the trigger quickly these have a tendency to skip or not align up correctly. So I took some Foam sticker sheets and cut out two small pieces to create a friction point to slow down the barrel. This has cause that issue to disappear.
Next, put it all back together and go crazy with your 15 shot semi auto rear-loading pistol.
Ranges: 25-35 feet with 3/0 mod darts. I am sure I would get better range with single bb darts, but I donít have any to test at the moment.
Posted 27 May 2010 - 10:19 AM
Great mod & nice write-up.
The fourth exciting Nerf War in Fort Wayne, IN.
Posted 27 May 2010 - 12:37 PM
Just Some Bob: That hose acts as an over pressure guage for the gun, since when it expands it pops off. So stock you can get about 20 pumps before it tries to pop off. I have gotten mine up to 35 pumps so far with no issue. I think with a solid pressure hose I can get up to 40-45 with no worries.
Posted 27 May 2010 - 01:52 PM
Posted 27 May 2010 - 02:20 PM
Just curious, how many pumps does it take to fill this thing?
Posted 27 May 2010 - 03:05 PM
Zack the Mack: Right now I pump it around 30 times. I could easily do more, but that hose will pop if I go too high.
Video of how the Mforcer works
Edited by nerkum, 27 May 2010 - 04:55 PM.
Posted 27 May 2010 - 05:03 PM
Mine is almost complete, except for one problem: somehow, the air meter is messed up. It leaks air EXCEPT when you pull the trigger. Then it stops. Not good, although I guess I could hold the trigger down and meter it myself. But that's a royal pain.
Any ideas on that one?
Posted 27 May 2010 - 08:36 PM
The black piece and the attached pump mechanism is definitely the weak link on this blaster. I guess it never occurred to me that I can simply get rid of it. Props for your creativity and execution.
"Stiff. With an 'F'."
Posted 01 June 2010 - 02:43 PM
Posted 31 May 2011 - 06:05 PM
Posted 01 June 2011 - 11:03 PM
Posted 03 June 2011 - 12:25 AM
I never had to take those screws out, basically only the cover, front piece, and hose was modified. No need to play with the piston.
You do not need to worry about the hose unless you want to do more then 25ish pumps. Otherwise you will need to replace it.
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