Angel Test Bed

[Roger7pball]

Had a data acquisition system so bought some sensors to see what the tank reg, hpr, and lpr are really doing. I only have WDP stuff but if someone wants to overlay aftermarket regs shoot me a message. Capable of 20k hz but set it at only 1k hz to capture the solenoid signal. The gauge adaptor volume may affect testing slightly but would be an apples to apples comparison since it will be present in any tests.

If you have any pressure set points or mods you want me to test let me know. Just engineerding here.

Can look at
- Board’s ball per second accuracy
- Board’s solenoid dwell accuracy
- Tank’s dropoff & consistency
- HPR’s dropoff & consistency
- LPR’s dropoff & consistency

[punkncat]

That's purdy coo!

[lew]

Awesome work, Roger!

[DavidBoren]

Very cool.

[russc]

Badass. I'm surprised how consistent the regs are.

[Tarsun2]

does each peak represent the moment right before the trigger is pulled, with the descending line being the drop in pressure from the shot, and then the ascending line back up to the peak as the recharge rate...?

[Roger7pball]

does each peak represent the moment right before the trigger is pulled, with the descending line being the drop in pressure from the shot, and then the ascending line back up to the peak as the recharge rate...?

Essentially yeah. The top 3 are the pressures in PSI and bottom is the signal to the solenoid. For consistency of testing I put the Angel to 11 BPS full auto (to cover the 10.5 most play at). Then the reg pressures show the drop in pressure and following recharge rate as you say.

A couple companies are sending me their products to get them data. So as of right now I don't have any results or conclusions but those should come soon. Wish I had a bunch of regulators then could do overlays and rank the hardware.

[Tarsun2]

so a good flowing reg will have a "more vertical" ascending line leading to the peak...?

(just curious as to what to look for in a good reg vs a great reg.

[Roger7pball]

so a good flowing reg will have a "more vertical" ascending line leading to the peak...?

(just curious as to what to look for in a good reg vs a great reg.

Yeah a greater slope to target pressure, or less of a dropoff initially when the ball is fired. The closer the pressures stay at target the better.

We have observed on the Angels - you chrono to a certain speed on a single shot at a set pressure. When playing that first shot is what you chrono’d to but during a fast string the following shots can be down 20-30 FPS. The goal would be to have all the shots the same speed no matter the rate of fire.

[Roger7pball]

From Trevor at AOG, the speeds are backwards btw (last number was first shot). Not sure on his balls per second.

Minireg stock guts turned to 305-310fps

Run1 with real paint
279,273,263,260,273,268,269,276,287,273,267,270,27 4,268,276,274,278,274,268,279,277,254,259,264,279, 271,268,272,289,309

[Roger7pball]

Did some 11 bps "Pure Energy" vs "Power House" tank reg tests. Tried setting the PH reg to the set output of the PE reg - got close but a bit shy. Difficult to do when you have to drive 30 mins to get the tank filled and once its filled you can't adjust it. It was a straightforward A-B-A-B test with nothing changed but the tank.

Things I came away with:

• PH reg is more consistent than the standard tank reg

• The PH reg has a different recharge pattern - like a shark tooth

• The designer of the PH, who sent me the reg, was very happy with this dampened affect when nearing target. It was his intention but he had no way of recording it. Almost like an electrical PID controller with no overshoot.

• The less drastic pressure fluctuations (peak to peak) from the PH reg didn't help the mini-reg output. I'm going to work on the mini-reg design next.

[docfire]

Nice work are you able to look at refresh time in MS (tank reg) per cycle?

[Roger7pball]

Nice work are you able to look at refresh time in MS (tank reg) per cycle?

Yeah I can look at the time, the slope, the delta in each pressure spike, the mean pressure - lots of metrics.

[Roger7pball]

I was able to get some data on the AKA LPR for the LCD, it’s good.

Picture 1 - test subject
Picture 2 - normal tank/hpr/lpr/solenoid plot of WDP vs AKA lpr. This shows a good apples to apples comparison with pressures nearly line on line.
Picture 3 - y-axis focused in on the LPR’s. The test was done at 11 BPS but doing some math shows the AKA can resume set pressure for 18+ BPS (1000ms/55ms=18.2). The WDP falls a good 10 psi short of set pressure even at 11 BPS.
Picture 4 - kind of unrelated but noticed the powerhouse reg can change up to 20 psi output depending on how far the ASA engages the pin. From the PH designer...”Yes the ASTM spec for pin movement by the gun is 0.1” and most move only 0.6”, good observation.”

[lew]

Interesting results with the AKA reg. I'm very much tempted to buy one.