Threads

[Devolve]

is it poss to recreate threads (ie spyder) yourself...or is it like some sort of special thread that is only known by pball companies?

[Tom]

What equipment do you have? I would assume that the threads are standard imperial threads of some sort, but I don't know exactly the thread specification. I'm sure the companies would tell you if you asked though. If you had that information and a lathe that could cut imp threads then you should be able to amke your own barrel - theoretically anyway!

Tom

[robtattoo]

If you've got a micrometer to work out your thread diameter, a thread gauge to work out your pitch, a VERY accurrate lathe, (no school lathes or anything made by Clarke) with screw cutting gear, a rod polisher, several grades of internal mirror polishing mops, a range of imperial bore gauges (0.5-0.7"), a boring bar long enough to reach & year upon year of experience in the precision engineering trade (preferrably in aeronautics or optics), you should be able to turn out (sic) some quite acceptable barrels, if not, all your going to do is waste a lot of very expensive, high grade aluminium (T6 or 6020 for preference)



Why not just shell out £34 for a Dye Excell? ( instead of around £12k for all of the above):D



p.s. I'm an engineer by trade & a qualified machinist, thought about tryng it for myself until I figured out what was involved !

[andy..]

Rob,

How easy would it be to re thread a barrel, say from an Autococker to a Spyder

Andy

[Tom]

I can answer that!

Not easy, as you would actually have to remove the old threads and then build up the metal so that you could then cut new threads into it. I'm guessing rob would agree that it really wouldnt be worth the time and effort compared with just getting a cocker or spyder threaded barrel in the 1st place.

Having said that, if the new thread to be cut had a smaller external diameter than the old one, and the pitches were significantly different, you could maybe get away with turning the e.d. down to the new thread's e.d., then cutting the new thread directly into the old thread. However, I doubt the different marker type's pitches are different enough to make this feasable over the inch or so of thread length found on barrels.

Rob, whats the expert answer?

Tom

[robtattoo]

The simplest way would be to cut the barrel down, past the original threads, to the barrell blank & start again. You could,I suppose, turn the threads off, sleeve the barrel oversize, then turn a thread onto it. As for cutting a new thread onto an old one, yes it's possible to cut a fine pitch over a coarse one (e.g. cocker over impulse) but you're very likely to cross-thread & because of the overlaps, ruin the threads in your marker. I think cutting the last inch or two off & starting again would be the easiest option by far.

[Tom]

Rob - if you just turned off the old thread, wouldn't the barrel be under size for cutting the new thread? Surely you would have to sleeve it first?

Tom

[Tortoise-Licker]

nope Rob is talking about actually cutting off the threaded part of the barrel and starting again on the main part of it. Thus you end up with a shorter barrle but its got the new thread on it.

Oh and I'm a process engineer by trade and also thought about trying to make me a new barrel and even though we have all the equipment at work the effort seemed to great for the finished object. Why spend a few hours making a barrel when you can buy one for next to nothing nowadays anyhow.

[Devolve]

its jus i was thnkin of makin gun for gcse tech (not for use unless i get it checked for safety by proper guys)....and i was wonder if poss really to make the inside thread so that pre made barrels could be fitted to it......the other opt is to have a fixed barrel, but i would prefer to be able to buy new ones aswell.ive been told to do it as a project id jus need to do the body and get away wid the other things bought......any1 got ne ideas to help me????

oh and by the way does ne1 know whether its poss to get a non electric trigger and grip for an erex led dme1...jus in case of problems wid gun bein electric at my local site?

[Eon]

Newbie question, wot is a THREAD?:confused:

[Skyhawk]

Well lets put it this way, Different types of guns have different threads which is the length in betwen each turny thingy i think :P

[Eon]

Any idea wot thread a impulse has

[Welsh]

Impulse threads!:D

[alan phoenix]

Originally posted by Eon
Newbie question, wot is a THREAD?:confused:

the spirally things that let you connect your barrel to your marker unless you got a L7 mag then threads is the cool clothes you paintball in.:D :D :D

[Eon]

cheers guys, it makes sense now