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    PETG Tightening Rings - An Alternative

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    makeitgo

    Posts : 161
    Join date : 2011-04-04
    Location : Ottawa, Ontario, Canada

    PETG Tightening Rings - An Alternative

    Post  makeitgo on Wed Jan 18, 2012 9:38 am

    The idea for this actually came to me by happenstance a while ago, just before "Hell Before Halloween 5". I never got around to creating a write up about it because life became complicated. I lost a job, started a new job, bought a house, moved, family issues ... you know ... just life in general. Everything has settled. So no worries guys.

    While I was making darts for HBH 5, I accidentally left my hot glue gun a little too close to some PETG (who hasn't done that?).



    Much to my dismay, it had melted my PETG, something awful.



    But as they say, "Where some see adversity, others see opportunity."


    I had already known about various methods of creating tightening rings using stubs of brass or a pipe cutter with a washer. However, brass can be hard to find and can get expensive. Especially, if you like modding turreted blasters, like myself. Using a pipe cutter, even replacing the blade with a washer, I could never get the rings 'consistent' enough. i.e. each barrel had a different fit. Some looser, some tighter. Very annoying in turrets.

    After examining my distorted piece of PETG, I had a stroke of genius. If you've ever seen the movie, "A Beautiful Mind" starring Russel Crow, I had one of those moments. The items in my immediate workspace started to float and glow and connect.... Here's what I came up with;



    A hair dryer, some PETG and springs I had previously found at Lowe's.



    I discovered that my PETG fit 'very' snuggly within these springs. A twist fit if you will. They come in a pack of 2 but you only need one of them.

    I began by simply measuring my darts (dart length will depend on personal preference). In my case, it was about 4 cm.



    So, I nested the PETG into the spring that amount.




    Here's the part that makes this method cool.. or should I say hot ( groan.....). Using the hair dryer, I heated up the whole thing from underneath being very careful to hold it as vertical as possible (When PETG is heated up it can get very maleable. The weight of the spring is enough to bend it).



    Since the inner diameter of the spring is slightly smaller than the outer diameter of the PETG, when the spring gets hot enough, it will begin to bite into the PETG.



    Before removing the spring, I waited for it to cool down. Maybe, 15 to 20 seconds. (Trust me. Let it cool down hanging vertically. Don't attempt to remove the spring before it's ready. You'll burn your fingers or at the very least, bend your PETG. Also, I don't suggest trying to speed up the process by running it under cold water.)





    Voila!


    - Buzz Bee foam


    - cheap grey FBR (notorious for being too loose for PETG)


    - Streamline... why not?

    P.S. I've tried this with rubber o-rings but found it to be temper mental. The spring method is definitely more reliable.
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    False

    Posts : 253
    Join date : 2010-04-25
    Age : 19
    Location : Gold Coast, Queensland.

    Re: PETG Tightening Rings - An Alternative

    Post  False on Wed Jan 18, 2012 9:43 am

    Wow, this is awesome, very creative.

    I'm going to use this technique, the only problem is testing for the right spring...
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    evozn

    Posts : 396
    Join date : 2011-03-31
    Age : 21
    Location : Melbourne, Point Cook

    Re: PETG Tightening Rings - An Alternative

    Post  evozn on Wed Jan 18, 2012 9:58 am

    I remember that packaging, those springs are sold in Masters. Next time I'll go check it out.
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    JacobYeah

    Posts : 206
    Join date : 2011-10-15
    Age : 19
    Location : Sydney

    Re: PETG Tightening Rings - An Alternative

    Post  JacobYeah on Wed Jan 18, 2012 11:46 am

    a breakthrough method for tightening rings, if you will
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    Unknown

    Posts : 997
    Join date : 2010-07-07
    Age : 19
    Location : North Brisbane

    Re: PETG Tightening Rings - An Alternative

    Post  Unknown on Wed Jan 18, 2012 12:12 pm

    Simply genius! Really wishing I hadn't already glued in the barrels on an Octoshot contract I'm doing.
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    Ungodlyfreak

    Posts : 66
    Join date : 2010-12-07
    Age : 24
    Location : perth

    Re: PETG Tightening Rings - An Alternative

    Post  Ungodlyfreak on Wed Jan 18, 2012 6:55 pm

    Ooh, neat. Mind you, how does it go for air seal? I'd imagine a spiral shape would certainly hold the darts, but does it add any real pressure increase?
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    Jeo

    Posts : 462
    Join date : 2011-01-27
    Age : 30
    Location : Canberra

    Re: PETG Tightening Rings - An Alternative

    Post  Jeo on Wed Jan 18, 2012 11:45 pm

    That's really clever. Nicely done.
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    Nsnerfing

    Posts : 21
    Join date : 2012-02-02
    Age : 20
    Location : Califonia North America

    Re: PETG Tightening Rings - An Alternative

    Post  Nsnerfing on Wed Mar 14, 2012 4:33 am

    Nice!
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    camo1010

    Posts : 443
    Join date : 2011-08-09
    Age : 29
    Location : Toowoomba QLD, Australia, Earth, Milky way....

    Re: PETG Tightening Rings - An Alternative

    Post  camo1010 on Wed Mar 14, 2012 4:53 am

    Nice work I'll say
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    JeremyArifin

    Posts : 122
    Join date : 2012-05-29
    Age : 17
    Location : Melbourne

    Re: PETG Tightening Rings - An Alternative

    Post  JeremyArifin on Sat Jul 21, 2012 3:28 am

    One VERY BIG question...will this technique work with acrylic barrels? Please answer because I can't seem to find any PETG anywhere accept for online (But I'm not allowed to order things online).
    PS: VERY creative Idea!
    Thanks, Jezza.
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    littlebro05
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    War Organiser

    Posts : 2533
    Join date : 2009-07-07
    Age : 25
    Location : Brisbane Boi!

    Re: PETG Tightening Rings - An Alternative

    Post  littlebro05 on Sun Jul 22, 2012 3:48 pm

    JeremyArifin wrote:One VERY BIG question...will this technique work with acrylic barrels? Please answer because I can't seem to find any PETG anywhere accept for online (But I'm not allowed to order things online).
    PS: VERY creative Idea!
    Thanks, Jezza.

    Not being rude or anything, but how about you find that out for yourself. If you have access to acrylic then try it yourself. We're here to help you, but we're not going to spoon feed you information that you can find out for yourself.

    Note: Even I don't know the answer to the question, so maybe instead of asking questions, you can give us the answers to your own question =). Thanks.

    Side-Note: Just so you know, please don't reply to threads that are more than three months old. Thanks.

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