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Jeo
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makeitgo
11 posters

    PETG Tightening Rings - An Alternative

    makeitgo
    makeitgo


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

    PETG Tightening Rings - An Alternative Empty PETG Tightening Rings - An Alternative

    Post  makeitgo 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?).

    PETG Tightening Rings - An Alternative Img4329o

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

    PETG Tightening Rings - An Alternative Img4326jr

    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;

    PETG Tightening Rings - An Alternative Img4342e

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

    PETG Tightening Rings - An Alternative Img4343t

    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.

    PETG Tightening Rings - An Alternative Img4345w

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

    PETG Tightening Rings - An Alternative Img4347k
    PETG Tightening Rings - An Alternative Img4349tt

    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).

    PETG Tightening Rings - An Alternative Img4353j

    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.

    PETG Tightening Rings - An Alternative Img4354f

    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.)

    PETG Tightening Rings - An Alternative Img4357p

    PETG Tightening Rings - An Alternative Img4358hh

    Voila!

    PETG Tightening Rings - An Alternative Img4362c
    - Buzz Bee foam

    PETG Tightening Rings - An Alternative Img4363p
    - cheap grey FBR (notorious for being too loose for PETG)

    PETG Tightening Rings - An Alternative Img4364b
    - 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.
    False
    False


    Posts : 253
    Join date : 2010-04-25
    Age : 23
    Location : Gold Coast, Queensland.

    PETG Tightening Rings - An Alternative Empty Re: PETG Tightening Rings - An Alternative

    Post  False 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...
    evozn
    evozn


    Posts : 396
    Join date : 2011-03-31
    Age : 25
    Location : Melbourne, Point Cook

    PETG Tightening Rings - An Alternative Empty Re: PETG Tightening Rings - An Alternative

    Post  evozn 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.
    JacobYeah
    JacobYeah


    Posts : 206
    Join date : 2011-10-15
    Age : 24
    Location : Sydney

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    Post  JacobYeah Wed Jan 18, 2012 11:46 am

    a breakthrough method for tightening rings, if you will
    Unknown
    Unknown


    Posts : 997
    Join date : 2010-07-07
    Age : 23
    Location : North Brisbane

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    Post  Unknown 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.
    Ungodlyfreak
    Ungodlyfreak


    Posts : 66
    Join date : 2010-12-07
    Age : 28
    Location : perth

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    Post  Ungodlyfreak 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?
    Jeo
    Jeo


    Posts : 462
    Join date : 2011-01-27
    Age : 34
    Location : Canberra

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    Post  Jeo Wed Jan 18, 2012 11:45 pm

    That's really clever. Nicely done.
    Nsnerfing
    Nsnerfing


    Posts : 21
    Join date : 2012-02-02
    Age : 25
    Location : Califonia North America

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    Post  Nsnerfing Wed Mar 14, 2012 4:33 am

    Nice!
    camo1010
    camo1010


    Posts : 443
    Join date : 2011-08-09
    Age : 34
    Location : Toowoomba QLD, Australia, Earth, Milky way....

    PETG Tightening Rings - An Alternative Empty Re: PETG Tightening Rings - An Alternative

    Post  camo1010 Wed Mar 14, 2012 4:53 am

    Nice work I'll say
    JeremyArifin
    JeremyArifin


    Posts : 122
    Join date : 2012-05-29
    Age : 21
    Location : Melbourne

    PETG Tightening Rings - An Alternative Empty Re: PETG Tightening Rings - An Alternative

    Post  JeremyArifin 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.
    littlebro05
    littlebro05
    War Organiser
    War Organiser


    Posts : 2533
    Join date : 2009-07-07
    Age : 29
    Location : Brisbane Boi!

    PETG Tightening Rings - An Alternative Empty Re: PETG Tightening Rings - An Alternative

    Post  littlebro05 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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