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

49345 Comments

Anonymous

RichardAwaix (not verified)

on

Sun, 04/13/2025 - 06:25

mexico drug stores pharmacies <a href=" https://www.support-groups.org/memberlist.php?mode=viewprofile&u=356041 ">buying prescription drugs in mexico online</a> or <a href=" http://transfer-talk.herokuapp.com/l?l=http://usmexpharm.com ">mexican rx online</a>
http://timemapper.okfnlabs.org/view?url=https://usmexpharm.com buying prescription drugs in mexico online
[url=https://clients1.google.ki/url?q=https://usmexpharm.com]mexico drug stores pharmacies[/url] pharmacies in mexico that ship to usa and [url=http://lzdsxxb.com/home.php?mod=space&uid=4274484]mexican online pharmacies prescription drugs[/url] mexico drug stores pharmacies

Anonymous

RichardAwaix (not verified)

on

Sun, 04/13/2025 - 18:38

best online pharmacies in mexico <a href=" http://jiangzhongyou.net/space-uid-591239.html ">buying from online mexican pharmacy</a> or <a href=" https://images.google.dk/url?sa=t&url=https://usmexpharm.com ">mexican rx online</a>
https://marketplace.tryondailybulletin.com/AdHunter/Tryon/Home/EmailFrie... mexican mail order pharmacies
[url=https://raptor.qub.ac.uk/genericInstruction.php?&suborg=qub&resourceId=4... pharmaceuticals online[/url] mexican drugstore online and [url=https://www.donchillin.com/space-uid-453246.html]pharmacies in mexico that ship to usa[/url] medication from mexico pharmacy

Anonymous

Mauriceneext (not verified)

on

Sun, 04/13/2025 - 21:29

medicine in mexico pharmacies <a href=" http://umsr.fgpzq.online/home.php?mod=space&uid=7751 ">mexican rx online</a> or <a href=" https://dev.nylearns.org/module/standards/portalsendtofriend/sendtoafrie... ">mexican online pharmacies prescription drugs</a>
http://www.mediaci.de/url?q=http://usmexpharm.com mexican online pharmacies prescription drugs
[url=https://cse.google.co.ls/url?q=https://usmexpharm.com]buying prescription drugs in mexico online[/url] mexican pharmaceuticals online and [url=http://bbs.chinabidding.com/home.php?mod=space&uid=743538]purple pharmacy mexico price list[/url] best online pharmacies in mexico

Anonymous

VictorMup (not verified)

on

Sun, 04/13/2025 - 22:57

mexican mail order pharmacies <a href=" http://www.zgyhsj.com/space-uid-956085.html ">reputable mexican pharmacies online</a> or <a href=" http://www.physikon.de/cgibin/jump.cgi?rahmen=0&url=usmexpharm.shop&gebi... ">mexican online pharmacies prescription drugs</a>
http://urlaubhamster.de/out.php?link=http://usmexpharm.shop mexico drug stores pharmacies
[url=https://maps.google.com.mx/url?q=https://usmexpharm.shop]reputable mexican pharmacies online[/url] buying from online mexican pharmacy and [url=http://lzdsxxb.com/home.php?mod=space&uid=4274510]reputable mexican pharmacies online[/url] medicine in mexico pharmacies

Anonymous

Jimmybyday (not verified)

on

Mon, 04/14/2025 - 05:31

Для тех кто ищет новые интим знакомства с девушками в Адлере советую всем платформу которая дает возможность легко находить интересных собеседниц и проводить время весело и с пользой. Здесь вы сможете найти как кратковременные встречи так и более серьезные отношения <a href=https://t.me/sochinightt>https://t.me/sochinightt</a>

Anonymous

krakr.cc-apold (not verified)

on

Mon, 04/14/2025 - 11:08

Ищете рабочие зеркала для входа на <a href=https://krakr.cc/>kra29.cc</a>? У нас только проверенные и актуальные ссылки на торговую площадку <a href=https://krakr.cc/>kra30.cc</a>. Инструкции по безопасному входу через Tor и VPN, а также свежие ссылки в нашем Telegram канале. Заходите и совершайте покупки быстро и безопасно на <a href=https://krakr.cc/>kra30.at</a>

Anonymous

krakr.cc-apold (not verified)

on

Mon, 04/14/2025 - 11:09

Ищете рабочие зеркала для входа на <a href=https://krakr.cc/>kra30</a>? У нас только проверенные и актуальные ссылки на торговую площадку <a href=https://krakr.cc/>kra30.at</a>. Инструкции по безопасному входу через Tor и VPN, а также свежие ссылки в нашем Telegram канале. Заходите и совершайте покупки быстро и безопасно на <a href=https://krakr.cc/>kra30.at</a>

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.