[TechPB-Mike]

Watching a TV show the other day, and I saw them using a hydraulic press to test the breaking force needed to crush a particular item

I was wondering if Punkworks could design some sort of "Paintball Vice", where we can slowly increase the pressure on paintballs till they crack or break

This could be a very handy statistic to the paint companies and consumers

[cockerpunk]

TechPB-Mike, on Nov 18 2008, 05:08 PM, said:

Watching a TV show the other day, and I saw them using a hydraulic press to test the breaking force needed to crush a particular item

I was wondering if Punkworks could design some sort of "Paintball Vice", where we can slowly increase the pressure on paintballs till they crack or break

This could be a very handy statistic to the paint companies and consumers

yup, we got a compression test lined up.

we are going to simulate an underbore and see if it breaks paint easier.

[Mockstar]

I'd like to see a test like this as well. We've all done the drop test, and finger pinch test. I usually do one or the other with different paint brands that I buy. It's not real scientific tho.

[brycelarson]

We've got a combination test planned - using air pressure and also using force transmitted via a bolt.

[oerllikon]

Is that the tapered tube thing?

[brycelarson]

oerllikon, on Nov 18 2008, 11:14 PM, said:

Is that the tapered tube thing?

yup, our discussion so far has included both air pressure controlled via low pressure reg and using a bolt-type cupping device to apply pressure to paint while measuring force.

Each test will give us a number - the interesting point won't be so much what that number is - but rather how that number changes from ball to ball and brand to brand.

[cockerpunk]

we just ahvea sneaking suspicion that the method of the application of the force will change the amount of force we need to break the paintball.

yes, we are going to use a tapered tube to try to simulate an under bored failure.

[Spitlebug]

cockerpunk, on Nov 19 2008, 11:09 AM, said:

we just ahvea sneaking suspicion that the method of the application of the force will change the amount of force we need to break the paintball.

yes, we are going to use a tapered tube to try to simulate an under bored failure.

Might I suggest getting an appropriate sized tube and putting a few of each batch/brand of paintball into it and slowly stacking weights on the ball to find the mean static burst pressure? I would be curious to see how the two would stack up between static burst pressure and air pressure.

If any thing it may be of interest for loader design or ball stack information.

This post has been edited by Spitlebug: 25 November 2008 - 02:19 PM

[cockerpunk]

Spitlebug, on Nov 25 2008, 02:18 PM, said:

Might I suggest getting an appropriate sized tube and putting a few of each batch/brand of paintball into it and slowly stacking weights on the ball to find the mean static burst pressure? I would be curious to see how the two would stack up between static burst pressure and air pressure.

If any thing it may be of interest for loader design or ball stack information.

miles ahead of you, but good to see around. listened to you on the show last night, very good.

we are going to use a compression/tensile testing machine and depending on what procaps can do for us, 4 or more types of paints, from rec, to winter, to pro level. we will also use different methods of applying that force to see how a ball reacts to an underbore and on impact with a flat hard surface. and we have some "aged" paints we want to compare to fresh paint aswell.

This post has been edited by cockerpunk: 25 November 2008 - 02:26 PM

[`kook]

I wonder how much pressure it take to break a monster ball >.>

[cockerpunk]

AJN, on Nov 25 2008, 02:52 PM, said:

wow, cant wait for the aged and new paint test comparison

yeah right now at home i have 20 or more paintballs in a few different places -

1. direct sunlight for the whole day
2. the bathroom with all the humidity
3. a flat, hard surface open to the air
4. my dehumidified basement
5. still packed in the box, unopened and sealed as was shipped to me but aged 3 months

i wonder if the humidified ones have blow up or not. when im home over thanksgiving ill check on them all. they have all been in that spot for a month now, and by the time we test them, they will be there 2 months.

and again, i'd love to thank ProCaps for stepping up to the plate and supporting us again. i just got off the phone with joey at procaps, and she is again donating a bunch of paint to us. thanks again ProCaps!

This post has been edited by cockerpunk: 25 November 2008 - 03:00 PM

[Spitlebug]

cockerpunk, on Nov 25 2008, 11:25 AM, said:

miles ahead of you, but good to see around. listened to you on the show last night, very good.

Yeah it was really easy to talk to Mike. I think he's got one of those personalities that makes people comfortable. I hope I wasn't rambling at all. I can't believe I got on. I just called in and *BAM* Mike was on the phone. I didn't realise that I was live until he told me. I thought he was going to call screen.

<----- Haha too funny.

cockerpunk, on Nov 25 2008, 11:59 AM, said:

yeah right now at home i have 20 or more paintballs in a few different places -

1. direct sunlight for the whole day
2. the bathroom with all the humidity
3. a flat, hard surface open to the air
4. my dehumidified basement
5. still packed in the box, unopened and sealed as was shipped to me but aged 3 months

i wonder if the humidified ones have blow up or not. when im home over thanksgiving ill check on them all. they have all been in that spot for a month now, and by the time we test them, they will be there 2 months.

and again, i'd love to thank ProCaps for stepping up to the plate and supporting us again. i just got off the phone with joey at procaps, and she is again donating a bunch of paint to us. thanks again ProCaps!

Polar Ice is probably my favourite paint to play with but it's cold here and that makes it a much better general paint for my area. I can only assume the DraXxus Frostbite is essentially the same sort of thing. The shell of winterized paint as far as I can tell is much thicker, even so in cold or inclement weather it becomes quite brittle. I think the main difference is the fill. It's thick, but not like tar. Seems to get really soupy in the summer though.

This post has been edited by Spitlebug: 25 November 2008 - 03:24 PM

[shadowsniper11]

diablo heat seems to not break in the barrel as easy but it deforms after a month though

[Split]

Cockerpunk:
Cant wait to see youre ressults in the paintball stress test. I have a theory though that more brittle and higher grade paint, like evil and marbalizers and so on, have a "harder" and less elastic shell than cheeper paint. But when they first give in they colapse like the egs in youre egg squising video.

Not quite shure how I would go about testing this though. Maybe Push the ball through a tapered "glass" barrel or something like that to se how much each ball deforms before braking and not only mesuring the force that is needed to get the brake it self. This will allso show how far into the barrel (what bore size) the ball got before braking. So I would ask this question as a side question for youre test: "Does lower grade paint deform more than higher grade paint before braking?"


Thanks for all youre tests, they are very interesting. Keep it up.

[brycelarson]

We were working on a tapered clear cylinder - there were some issues with the machining - but I think we may have it this spring. We've got 5 types of paint from DXS - from gold to their just-above-white-box stuff. It should be interesting to see how the force needed to break the balls changes between them.

But yes, a cylinder that we can test deformation and force to break would be optimal. We'll get there.

[KonekoZombie PB]

`kook, on Nov 25 2008, 02:54 PM, said:

I wonder how much pressure it take to break a monster ball >.>

lol if a grown man can jump up and down on the bag and not one ball brakes i can only wonder

[dazbag]

Old thread, but still i would like to know, how much force is needed, to break a paintball? Someone who did a test?

[Jaccen]

https://docs.google....1qbUxFVUE#gid=0

http://www.techpb.co...showtopic=13341