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Pen spring in Iwata

Discussion in 'Tips & Tricks!' started by AndreZA, Mar 10, 2016.


  1. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    The search for a spring from a pen that fits an Iwata has always been a pain. And when you find one it is always in a no-name brand pen and you can not help people more then that.

    Well, till today. I found a well know branded pen that has the perfect spring. To start off with, it is pretty nice pen with a nice erasable feature. It's the Pilot Frixion Clicker. It sells for about $1.50 here in South Africa and are available in 5 or 6 colours. Not that the springs are any different in the various colours. I use them in the office so buying a few just for the springs are not a complete waste as I can just hold on to the refills.

    pens.jpg

    It is a bit shorter and softer than the stock spring.
    side_by_side.jpg

    Just about the same diameter.
    top_view.jpg

    This is on needle shaft of an Eclipse. I tried it on a HP-B and a Micron and the fit is exactly the same. On the Micron you have to turn the spring tensioner all the way in. It's got a very nice linear feel though out the whole travel of the trigger.
    on_needle_shaft.jpg

    I hope this helps someone.
    LovesArt, DaveG, J000seph and 8 others like this.
  2. musicmacd

    musicmacd Air-Valve Autobot! Very Likeable!

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    Nice one Andre
  3. RichardH

    RichardH Elite Member! Elite Member!

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    I've often wondered if they would work. Now I know. Thanks
  4. basepaint

    basepaint Air-Valve Autobot!

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    Thanks andre I'll have to look for some
  5. Micha der Wolf

    Micha der Wolf Detail Decepticon! Very Likeable!

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    I have not a Iwata, but it's a good idea also for other guns!
  6. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    I'm pretty sure it will work on all the Iwata/Olympos knock offs as well. I does not work in Harder and Steenbeck. Correct diameter but it's too short.
  7. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    After a few days of playing with it in my Micron, I realised the pen spring is a bit short for it. No problem, easy fix. Just pull it a bit longer and it is fine.

    micron_spring.jpg
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  8. jord001

    jord001 Air-Valve Autobot!

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    Looks good Andre', does it give the same sort of feel like the szolt spring does for the air valve?

    Lee
  9. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    @jord001, it does like almost the same effort is needed with both.

    I will see now if the expanded one returns to its former shape after a while or not.
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  10. Jake H.

    Jake H. Gravity Guru

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    @AndreZA Do you know what the length and diameter of the oem iwata spring is?
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  11. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    Sorry Jake, I have now idea. I don't have equipment that can measure very precisely.
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  12. Nessus

    Nessus Gravity Guru

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    Nice find! I'll have to find one of those pens to give it a try, as I've always wished the Eclipse's spring had more adjustment range.
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  13. Tocean

    Tocean Double Actioner

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    Ok think this spring may be one of my newbie problems, on my bcs when I pull back on the trigger I'm expecting paint to come out but it doesn't till I pull further back, it's a bit frustrating and hard to control, never occurred to me that the spring is wore out but makes sense now as I bought my iwata bcs used.
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  14. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    I spring does not control when the paint comes out when you pull back. It only affects how much force it take to pull the trigger back. But if it is too light, it will not shut off the paint in the nozzle and you will have a constant flow. Thin your paint more. That is usually the problem.
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  15. Tocean

    Tocean Double Actioner

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    Ok thanks, hmm just seems like the action sometimes is not consistent but this can totally be my inexperience, I usually do thin my paint down but I am paining in some humid weather.
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  16. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    Every gun is different. What works with one does not with another. Also on a BCS you need a little more air pressure than on gravity guns. And make sure your paint bottle/cup is in securely. If there is a leak it will not suck up the paint correctly.
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  17. CALz AyrWKz

    CALz AyrWKz Moderator Mod

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    Nice, Andrea. I will be buying some pens. LOL
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