the Grafiti Rat is a burst disk style paintball gun.
this gun was an interesting project. i thought out the designs while walking around the plumbing section of a home improvement store, so i really didn't know how it would turn out. this gun was also a cheap build (under $20, i think).
it shoots fairly well, makes good-sized dents in stuff and put a quarter-inch deep gash into a tree. And because its a burst disk, it makes a cool crack when it fires. I had to do a little troubleshooting to get the gun to work though.
overall, i am impressed with this gun's performance. The downside is that you have to keep replacing the disks after you fire and its limited by a 25 foot extension hose, but that's what i had to compromise to have more power so its all good.
sorry about the pics, i used my webcam
Grafiti Rat pb cannon
-
sergeantspud2
- Specialist 3
- Posts: 315
- Joined: Tue Jun 07, 2005 5:43 pm
- Location: So Cal
Looks cool but I have 2 questions,
wouldnt the shrapelnel from the burst disk bust the paintball?
and
where did you get the cpvc and how good does a paintball fit in it?
Nice cannon again
wouldnt the shrapelnel from the burst disk bust the paintball?
and
where did you get the cpvc and how good does a paintball fit in it?
Nice cannon again
Always rely on Murphy's Laws 4.If you have enough grease & a big enough hammer, you can put anything... anywhere
3.If all else fails, hit it with a big hammer
2.Matter will be damaged in direct proportion to its value
1.If anything simply cannot go wrong, it will anyway
i havent used the gun yet but im gonna see what materials wont damage the paintball (maybe a more flexible plastic that won't shatter so much, if that doesn't work i could try freezing the pb's).
i got the cpvc at theisen's (small midwestern chain) and its a nearly perfect fit, i got the cpvc repair coupling at menards though (another midwestern chain, i think)
i wonder if those slingshot balls would work as ammo?
i got the cpvc at theisen's (small midwestern chain) and its a nearly perfect fit, i got the cpvc repair coupling at menards though (another midwestern chain, i think)
i wonder if those slingshot balls would work as ammo?
Last edited by huse_spud on Sun Jun 04, 2006 11:44 pm, edited 5 times in total.
.75" CPVC is like only .01" off of the size of a PB, so its almost a perfect fit. Although CPVC is different sizes then regular PVC. I ended up sanding down a coupling so that it could fit inside of a 1" socket for PVC. Although they should have some transition peices.
-
rna_duelers
- Staff Sergeant 3
- Posts: 1739
- Joined: Mon Sep 26, 2005 7:07 am
- Location: G-land Australia
Nice gun,What your estimate on distance?And when do you get to fire the mean thing?Cuz i wunna see some damage pics....Always with the damage... 
i'll bring damage pics for this gun as soon as i get my hands on a digital camera. I'm planning to fire it tonite
i didn't use the GGDT because i don't have one. i'd like to use that.
don't you have to pay to get one? or use paypal or something?
LATER THAT NIGHT: I finally fired the gun after waiting 24 hours. the results are posted at the top.
i didn't use the GGDT because i don't have one. i'd like to use that.
don't you have to pay to get one? or use paypal or something?
LATER THAT NIGHT: I finally fired the gun after waiting 24 hours. the results are posted at the top.