Back spin on a paintball

[tech-chan]

A single long groove running the length of the barrel would allow air to bypass the paintball on one side. Would that create an appropriate amount of spin?

See, thats what I suggested.... hmmm...

[clemsonpaintball21]

simpler way just take nail polish (clear) and put it on the top of the inside of the barrel when screwed into gun
brush out towards the end of the barrel (btw only ablut 1/2 inch from end of polish)
It will create a backspin on the ball
i did this to my freak kit
LOVE IT

[HP_Lovecraft]

All those ideas were tried in the early 90s, and most were patented.

Ideas like the "extra friction on upper surface", or "extra holes on lower surface" or extra large detents, etc.

Bob Long even released an exotic backspin barrel back in 1993 called the Longshot (unrelated to the modern longshot).

Everyone here also seems to forget the GalaticZ backspin system from the 90s. It used a skid-plate, like what is found on modern Airsoft guns. It does work, though it breaks lots of paint.

Its nice that this old school technology has become popular again with the Flatline, and Apex, but none of the problems associated with backspin systems has been resolved. As such, it still is not much more then a novelty item

[WatchDragon]

How do you spin a liquid filled solid?

[Spencer]

You do..

I don't understand how there are all these tests with rifled barrels and people saying that the paintballs won't spin, however in a flatline they spin just fine..

[The Hellforger]

ok to get this project to work properly you will need a gun that has a bolt that cannot rotate (sorry mags, shockers, ions, dm's, etc) only guns like tippy's, ego's, spyders etc. will work for this.

first off you will need these supplies

• your marker
  an unported barrel
  a bottle of elmers glue
  someway to drill (preferably a drill press with 3 point axis to keep it straight)

First mod is just to the bolt itself, just make it like the CooperT bolt. It will impart slight backspin.

second mod is to drill three rows of porting at the 5, 6, and 7 o'clock on the bottom of your barrel, this again will add a slight amount of backspin.

next take your elmers glue and water it down to pretty much the consistency of water, then just pour it down along the top of your barrel to make it cause friction against the top of the barrel. NOTE: if not watered down enough this will cause alot of problems. I cannot stress enough about how it needs to be extremely watered down and how many, many coats should be used.

if your feeling froggy you may be able to add your own friction plate to the marker body like on the galactic z body

these are all ways that should significantly increase backspin while not cause you many problems that the apex and flatline give you.

any more suggestions gentlemen?

[jackwood]

You do..

I don't understand how there are all these tests with rifled barrels and people saying that the paintballs won't spin, however in a flatline they spin just fine..

They are talking about differnt axis of spin. A rifled barrel iis designed to impart a spin that is axial with the barrel. The spin systems (Apex, Flatline, Galactic Z etc) are designed to impart a spin perpendicular to the barrel axis.