[cockerpunk]

yeah, the output will only output 1000 data points, so 10 ksps would be like a millisecond.

[brycelarson]

yeah, it's hard to see without running with hardware - but watch the video. The way the free software works is that the screen is always 1000 samples wide. Basically you hit "go" and the software looks like it's doing nothing - once it's collected 1000 samples - which, in our case takes a second - it then displays the full 1000 samples. So we hit go, shoot then when the shot pops up on the screen we stop the software. At that point you save the 1000 data points as a csv and you start doing math.

[Egomaniacal]

That's a bummer. Impressive piece of hardware, completely ruined by software limitations.

[brycelarson]

Egomaniacal, on 05 July 2011 - 11:45 PM, said:

That's a bummer. Impressive piece of hardware, completely ruined by software limitations.

not really - it can talk to any software. If there are other, better, cheap or free options, let us know. And the info we get from this isn't worthless.

[Kermit]

I thought kick talk was a big no-no......

[Egomaniacal]

Any updates on the project?

[brycelarson]

Egomaniacal, on 24 July 2011 - 02:58 AM, said:

Any updates on the project?

not yet - I just did a stupid busy couple of weeks at work. soon.

[Jaccen]

Open source Matlab alternatives:

http://www.morlok.ne...b-alternatives/


Scilab tutorials:
http://www.scilab.or...ation/tutorials
http://wiki.scilab.org/Tutorials
http://www.scilab.or...tion&fileID=871

I used it for simplistic equations and it seemed to suffice. Though, I still fall back to Excel more often than not.

[Snipez4664]

The issue isn't really data processing as much as data acquisition, if I'm not mistaken. Once the data is available to the public, there will be plenty of people ready to torture it.

[cockerpunk]

are you guys saying you want the raw data? that can be arranged pretty easily.

[Snipez4664]

The data without beign processed via the o-scope would probably be preferable, but I don't see why you couldn't crowdsource some fo the data processing and see what people come up with - let the cream rise to the top.

[cockerpunk]

on august 2nd we redid the testing proceedure with the protege, mounting the sensor, the whole works to see how repeatable the whole system is -



peaks at 5ish, lows are at -5ish .... looks pretty damn consistent to me.

[CrazyLittle]

Ugh. You guys should have called me if you wanted to borrow a spoolie.

cockerpunk, on 29 June 2011 - 10:23 PM, said:

maybe im just a cocker freak, but i find the karni one the most interesting. notice how the second half of the cycle doesn't sync up very well, while the first half did ...

For a cocker freak, the answer should be obvious to you. Either the hammer is bouncing, or you're capturing the breech sensor waiting for the next paintball to load.

[cockerpunk]

CrazyLittle, on 11 August 2011 - 11:59 AM, said:

Ugh. You guys should have called me if you wanted to borrow a spoolie.

cockerpunk, on 29 June 2011 - 10:23 PM, said:

maybe im just a cocker freak, but i find the karni one the most interesting. notice how the second half of the cycle doesn't sync up very well, while the first half did ...

For a cocker freak, the answer should be obvious to you. Either the hammer is bouncing, or you're capturing the breech sensor waiting for the next paintball to load.

bingo

[tubberthump]

once winter rolls around i will send you my g4 just to see how bad it is

[cockerpunk]

so the componets of kick thread got me thinking, i think its time to dig out that punkworks dictionary and defines some terms. i think fundamentally we have two things -

1. the motion of the gun
2. the perception of motion the shooter feels

i propose we call the motion of the gun (total) as something, we call each componet of the motion X or Y. then we have an overal term for the perception the shooter gets from it.

[CrazyLittle]

Perhaps you might be able to quantify "smoothness" as the area deviation from the axis - such that a sharp but brief force would still have roughly the same area as a longer, slower but lighter force. Inertia would be (a) dampening force that counteracts this motion.

Think you could do a "heavy/light" comparison? Take a marker, kit it with very light components (13ci tank, 10-rnd tube, CF barrel) and then see how it compares to the same marker with 68/4500, steel barrel, full pinokio/240-rnd prophecy?

[cockerpunk]

CrazyLittle, on 11 August 2011 - 02:13 PM, said:

Perhaps you might be able to quantify "smoothness" as the area deviation from the axis - such that a sharp but brief force would still have roughly the same area as a longer, slower but lighter force. Inertia would be (a) dampening force that counteracts this motion.

i think the shooters percetion of those differences though are important.

[CrazyLittle]

But how do you quantify perception in an objective, measurable means?

[cockerpunk]

CrazyLittle, on 11 August 2011 - 02:21 PM, said:

But how do you quantify perception in an objective, measurable means?

well, you don't really. perseption is by defintion not objective.

my point is merely that the perception of a longer, lower accelleration, despite possibly moving the gun more, could be popularly interpretted as "smooth" despite mathmatically and objectivly not being the one with the smallest displacment.