Air Machinegun Forum

Yes, upgraded motor.
P.S. the steel gear and carbon clutch set-up i did is still working perfectly in my rig. No more worn out plastic pressure plate gears.
I found some pictures so im sharing them here. Hope you dont mind.

Yeah steel bb’s. With 1600psi it is shooting 1200-1210fps at best. I have no blow-by loss because my barrel threads into the valve body face. I welded the breach nut to it then grinded it down so i can thread the barrel a few turns.
There are pics in a different thread on here.

Mason, the steel gears partner well with the SB circuit boards. Idk what the hell you've mistakenly been told or what someone else lost in translation but, i dont need a 'partner' to play BB guns with.
 I'm waiting your apology. Then we can talk about sending you some gears.

Yes! It was. We fires it along side of a 1050 Bird, it was distinctly different than the sub sonic Drozd.
I have other really bizarre reaults to mention. It would be great if someone could provide some clarity here.
I was using a Loather Walther barrel for some accuracy teats which yielded significantly better results than my JimC and Ray smooth bore barrels.
The Loather Walther barrel smooth bore but, the bore diameter is larger than both the JimC and Ray barrel.
A Daisey BB falls through it in about half a second I estimate. ABb rolls through the other two barrels in about 1.5-2 seconds. So the LW barrel is not as tight.
Now what i find bizarre is how much more accurate the LW barrel is. Its the same length,looser fitting
Yet far superior on target

This pic below was a target shot 10-12 times with the Loather barrel, at a few feet shy of 50 yards, with a green laser for sighting.
I wont even bother posting the target from the JimC and Other barrel because the BBs were so inaccurate that several didn't even hit the oaoer.

Does anyone have any clue as to why there is such a variance? All the barrels were newish, all smooth bore, all the same length basically......WHAT GIVES!??

Nicely done. Great ideas!

I ported my whole air feed system from the inside of the HPA regulator on the tank all the way to the mag head. Anything that could be done. I posted photos and How-to about it all on the old forum somewhere some years back. It did make a very noticeable difference in power.

---Cam

Thanks Cam, I appreciate it.

Did you allign the intake hole that is on the bottom, between the O-rings (vertical air pipe section) with exit hole that is on the back aide of the ASA?
That is a major restriction in the system.

Stock pitch is .5mod.
For the complete kits i did it in 48p, there are more styles of gears to choose from in this dimension.

2.3mm for the jameco motor shafts.  1/8 bore works for the middle gear, and 5mm bore works with a little sanding for the auger gear.

Mason, let me know if you want me to send a gear set your way.

P.S. Have a look at the BB feed tube mod i did. There is a significant gain in FPS to be had. It makes the gun a good bit louder too. I'll have to do a decibel test but I'd estimate that it gains more than 10db.  It most noticeably increases the fps during full-auto strings.

When using stiffer spring rates to achieve 2,4 or 6k rpm speeds the additional force that is applied to the clutch can prematurely wear out the pressure plate surface on the larger gear. This might not happen right away bit, if you like to shoot a lot of single fire shots the additional torque will cause quick wear from the clutch constantly needing to slip during singe fire modes.
So this is what i did to resolve the problem. Additionally it makes for a much smoother sounding operation and increased durability.

Replaced all plastic gears with hardened steel alternates.
The gears requires some minimal machining.
The clutch has been replaced with a carbon fiber unit that is twice as thick at 1mm. The D shaped anti-rotation bore is still applied to the clutch.

If anyone is interested in a gear set, or just a new steel drive gear for your upgraded motors you may send me a message and I'll gladly help you out.
Enjoy.