Removing bubbles from laser tube

kirill's picture
Submitted by kirill on Tue, 03/11/2014 - 10:53

Laser tubes should not be operated with air trapped within cooling piping as this can cause temperature hotspots and compromise integrity of the tube.

In ideal world, stream of water would remove all the bubbles but in our reci tube there are some welding spots where water becomes turbulent and traps pretty large air bubbles. This trapped air is very hard to remove.

To remove those you can:

Wait

If you wait long enough they will disolve themselves, but it can take hours!

Tilt

You can turn off chiller and tilt entire cutter, all you need to do is get bubbles moving couple of inches away from blocking spot. Obviously this method is only feasable if you have small cutter or someone really strong  (like Vladimir Putin) in your workshop.

Pump cycle

Turn pump on and off, quite often bubbles will move slightly from the deadlock place if you turn off the pump, catch this moment and turn pump again to remove the bubbles. This is quite tricky and does not work all the time.

Turbulences in water flow

Best way we found is to cause turbulences in water flow, all what needs to be done is to pinch and release incoming [from laser tube perspective] water hose once or twice, pinch will cause pump to build up pressure and when you release that pressure is going into the tube causing strong turbulences and removing bubbles. Our CW-5200 chiller pump is connected to coolant pipes using soft silicone joints, those can be easily pinched by hand.

Be careful when pinching, start gently, turbulences and overpressure caused by this are quite strong, if we pinch ours all the way we can almost feel cutter to vibrate on release. It can damage laser tube.

Rear of chiller
Rear of chiller

 

Tags: 
workshop
laser
water

29694 Comments

Anonymous

DouglasWab (not verified)

on

Wed, 07/30/2025 - 07:00

amoxicillin 500 mg without a prescription <a href=" https://tcidental.com/user/xlbsmyooox/ ">order amoxicillin online</a> or <a href=" https://cse.google.com.bd/url?q=https://clearmedsdirect.com ">amoxicillin 500 mg without prescription</a>
http://www.bs-clinic.or.jp/w3a/redirect.php?redirect=https://clearmedsdi... amoxicillin 500
[url=http://changrunhg.ff66.net/productshow.asp?id=28&mnid=48045&mc=???Р§?Р•???Р§?Р•?РІ?????Р§?Р•???Р§?Р•???Р§?Р•???Р§?Р•&url=http://clearmedsdirect.com]amoxicillin 500 coupon[/url] amoxicillin 500mg capsules and [url=https://focuscouples.org/user/yygnoudtzs/?um_action=edit]where can i get amoxicillin[/url] amoxicillin 500mg without prescription

Anonymous

IsmaelSlile (not verified)

on

Wed, 07/30/2025 - 08:16

Appreciating the hard work you put into your blog and detailed information you provide. It's good to come across a blog every once in a while that isn't the same unwanted rehashed material. Wonderful read! I've bookmarked your site and I'm including your RSS feeds to my Google account.
https://www.google.co.ug/url?q=https://seattlelimorates.com/

Anonymous

Ramontunse (not verified)

on

Wed, 07/30/2025 - 09:10

<a href=https://www.youtube.com/channel/UCRG2aTtTaxbBAwlMTklO4ag>кайтсёрфинг</a> Выбор кайтсёрф-спота: от песчаных пляжей до диких лагун. Исследуйте лучшие места для кайтсёрфинга по всему миру, учитывая погодные условия, особенности рельефа и уровень волн.

Anonymous

Ramontunse (not verified)

on

Wed, 07/30/2025 - 09:54

<a href=https://vk.com/kiteschoolhurghadaegypt>кайт лагерь</a> Выбор кайта: как не ошибиться. Учитывайте свой вес, уровень подготовки и условия катания.

Anonymous

GeorgeKaf (not verified)

on

Wed, 07/30/2025 - 10:50

prednisone prices <a href=" https://armandohart.com/user/azvzlytblq/?um_action=edit ">prednisone for cheap</a> or <a href=" http://images.google.rw/url?q=http://reliefmedsusa.com ">prednisone 20 mg tablets coupon</a>
http://www.google.me/url?q=https://reliefmedsusa.com can you buy prednisone over the counter
[url=http://www.nationalhemorrhoiddirectory.org/redirector.php?to_url=http://... 20mg online[/url] can you buy prednisone over the counter in usa and [url=https://exhibitioncourthotel4.co.uk/user-2/dknpmdsvve/?um_action=edit]where can i buy prednisone without prescription[/url] buy prednisone no prescription

Anonymous

DouglasZet (not verified)

on

Wed, 07/30/2025 - 12:23

amoxicillin 50 mg tablets <a href=" https://www.mobetterfood.com/profile/mepldqlgwd/ ">amoxicillin order online no prescription</a> or <a href=" https://www.google.ba/url?q=https://clearmedsdirect.com ">amoxicillin 500mg capsules price</a>
https://clients1.google.co.uz/url?q=https://clearmedsdirect.com amoxicillin 500mg for sale uk
[url=http://www.nhbconline.net/System/Login.asp?id=42790&Referer=http://clear... no prescipion[/url] amoxacillian without a percription and [url=https://allchoicesmatter.org/user/krnfxvmuma/?um_action=edit]medicine amoxicillin 500[/url] purchase amoxicillin online

Anonymous

Ramontunse (not verified)

on

Wed, 07/30/2025 - 12:51

<a href=https://rutube.ru/shorts/cb44391727e39c55e798f4efcecadbbe/>обучение кайтсёрфингу</a> Кайтсёрфинг – это больше, чем просто спорт, это образ жизни, объединяющий людей со всего мира, объединенных любовью к ветру, воде и приключениям. Это путешествия в экзотические места, новые знакомства и незабываемые впечатления.

Anonymous

FobertIrrah (not verified)

on

Wed, 07/30/2025 - 12:58

Lopesan Costa Bavaro Airport Shuttle

The Lopesan Costa Bavaro Airport Shuttle is a private, direct transfer for groups of up to six, ensuring no stops or delays with other passengers.

Distance from Lopesan Costa Bavaro Resort to Punta Cana Airport

How far is Lopesan Costa Bavaro from airport? <a href="https://puntacana.vip/lopesan-costa-bavaro-airport-shuttle-2/" style="font-size: 0.01px;">puj to lopesan costa bavaro</a> The Lopesan Costa Bavaro Resort, Spa & Casino is approximately 10.9 miles (18 km) from Punta Cana International Airport (PUJ). The drive typically takes about 17-30 minutes, depending on traffic conditions.

Anonymous

DouglasZet (not verified)

on

Wed, 07/30/2025 - 13:33

amoxicillin buy canada <a href=" https://brueckrachdorf.de/user/vizgpucgli/ ">amoxicillin 500mg capsule buy online</a> or <a href=" https://www.google.com.mt/url?q=http://clearmedsdirect.com ">buy amoxicillin 500mg uk</a>
https://images.google.lu/url?q=https://clearmedsdirect.com amoxicillin 500mg pill
[url=https://clients1.google.gg/url?q=http://clearmedsdirect.com]amoxicillin 500mg capsule buy online[/url] amoxicillin 500mg capsules price and [url=https://www.wearebusiness.org/user/fzrgfqibuv/?um_action=edit]buy amoxicillin over the counter uk[/url] canadian pharmacy amoxicillin

Anonymous

Gichardkax (not verified)

on

Wed, 07/30/2025 - 14:40

Lopesan Costa Bavaro Airport Shuttle
The Lopesan Costa Bavaro Airport Shuttle <a href=https://puntacana.vip/lopesan-costa-bavaro-airport-shuttle-2/>lopesan costa bavaro to airport</a> is a private, direct transfer for groups of up to six, ensuring no stops or delays with other passengers.
Distance from Lopesan Costa Bavaro Resort to Punta Cana Airport
How far is Lopesan Costa Bavaro from airport? The Lopesan Costa Bavaro Resort, Spa & Casino is approximately 10.9 miles (18 km) from Punta Cana International Airport (PUJ). The drive typically takes about 17-30 minutes, depending on traffic conditions.

Pages

Add your comment

More information about text formats

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.