Hop up increases range, not accuracy. If anything it decreases accuracy.
For your build a Systema PTW style hop up should be easy enough to integrate.

I know how it works, but for the pistons to return, part of the air will bleed out to waste while the Yong Heng supposedly uses all the air it pumps.
6h for 1,4l 4500 psi, so about 3 and half hours to charge my 0,8l to 3000 psi. I can leave with that.

My unit was old, way before Yong Heng was a thing yet. Doesn't have auto shut off and lack improvements compared to the new ones. It died again after two fills, probable same shit, I'm not gonna open it up so soon. It's louder than my shop compressor, needs messy coolant (I actually got a two fan ca...

I already have a shop compressor so, not a problem. The Yong Heng is loud, and it failed after maybe a dozen fills. Nothing promises the replacement top will be any better than the original. But I'll completely disassemble it today once more to inspect and give one more shot. At this moment I just w...

Haven't opened all the check valves. The first stage pump uses a thin metal sheet as a check valve for intake, the first to second stage check valve was the first one getting damaged, it was a tiny brass cone with spring behind it, I replaced it with a one directing o-ring piston (So far the o-ring ...

Anyone have experience with booster pumps? My Yong Heng compressor does not fill passed 1000 psi even after I cleaned it inside out and remade the check valves. I suppose I can live with slower charging rate but do they last? The compressor cost me around 150 back in the day and the booster is 600 b...

Hum so the Long Range Barrel works..? Then that implies that the BB does ride on top of the barrel

90 psi is more than enough.
I got 650 fps with 75 psi with a QEV+3 way combo. 650mm barrel.

Considering the power output of homemade airsoft gun you should be getting considerable more range than before. Depending on BB weight 70m plus range should be well within your capabilities.

Oh boy if you start digging into hop up that amount of bullshit you're gonna find...

You're sure stronger than I am and that's some long arms you got there...
Neat package tho, reminds me of teenage years

Pumping it while look down the bore must be hella exciting

I'd rather have this matter solved within 1k, but if something around the 3k range that is a true work horse I'd take it.
currently looking at the cr-10 pro then have a custom build enclosure and temperature control.
Or Just order a 500x500x500 ball screw structure...

Any of you guys 3D print?
Looking to replace mine, for 1000 euros what would you guys get?
DO NOT say original Prusa i3, for 1000 euros I'm not paying for a printer with 3D printed parts with such a small build volume.

True, it is pretty warm at the nozzle. Once tested a M150 gearbox it was so loud I thought it dieseled :lol: turns out just hard cylinder head and piston. Any guess on the peak pressure? I tried to measure it with a gauge but the recorded pressure was too low probably duo to leaks and dead volume be...