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

29328 Comments

Anonymous

CecilKex (not verified)

on

Fri, 07/25/2025 - 04:06

buy Zoloft online without prescription USA <a href=" https://shockingbritain.com/user/pifmjgyerz/ ">Zoloft Company</a> or <a href=" http://7ba.ru/out.php?url=http://zoloft.company/ ">Zoloft for sale</a>
https://images.google.to/url?sa=t&url=https://zoloft.company purchase generic Zoloft online discreetly
[url=https://cse.google.gg/url?sa=t&url=https://zoloft.company]cheap Zoloft[/url] Zoloft Company and [url=http://mbuild.store/user/tpxvpoamtw/?um_action=edit]generic sertraline[/url] Zoloft for sale

Anonymous

Henrynenna (not verified)

on

Fri, 07/25/2025 - 05:07

cost generic propecia tablets <a href=" https://ivpi.in/profile/cdsjspdeux/ ">buying cheap propecia prices</a> or <a href=" http://americanpatriotbeer.com/verify.php?redirect=http://finasteridefro... ">order cheap propecia prices</a>
https://cse.google.td/url?sa=t&url=https://finasteridefromcanada.com cost cheap propecia without a prescription
[url=http://www.jschell.de/link.php?url=finasteridefromcanada.com&goto=google... propecia without insurance[/url] buying generic propecia for sale and [url=http://jonnywalker.net/user/onjtmjwebi/]cost propecia without insurance[/url] buying generic propecia without rx

Anonymous

DonaldJef (not verified)

on

Fri, 07/25/2025 - 06:44

<a href=https://redseakite.ru/>кайт школа</a> Кайтсёрфинг комьюнити: друзья по интересам. Вступите в сообщество кайтсёрферов и обменивайтесь опытом.

Anonymous

CecilKex (not verified)

on

Fri, 07/25/2025 - 08:04

buy Zoloft online <a href=" https://www.carrier.co.za/index.php/user/favnrpmtko/?um_action=edit ">buy Zoloft online</a> or <a href=" https://images.google.li/url?q=https://zoloft.company ">cheap Zoloft</a>
https://maps.google.li/url?q=https://zoloft.company purchase generic Zoloft online discreetly
[url=http://nicosoap.com/shop/display_cart?return_url=http://zoloft.company]Z... for sale[/url] generic sertraline and [url=http://www.dbgjjs.com/home.php?mod=space&uid=528383]buy Zoloft online[/url] cheap Zoloft

Anonymous

RobertVap (not verified)

on

Fri, 07/25/2025 - 08:12

tadalafil prescription <a href=" https://www.sanmateocountyguide.com/profile/gkvjxwownm/ ">tadalafil tablets price in india</a> or <a href=" https://maps.google.com.sb/url?q=https://tadalafilfromindia.com ">how much is tadalafil</a>
http://flthk.com/en/productshow.asp?id=22&mnid=49487&mc=FLT-V1/V2&url=ht... cost of tadalafil in india
[url=http://minpress.ru/wp-content/plugins/wp-js-external-link-info/redirect.... united states[/url] tadalafil united states and [url=http://www.carshowsociety.com/forum.php?action=profile;u=32442]tadalafil online paypal[/url] online pharmacy tadalafil 20mg

Anonymous

Ceciladona (not verified)

on

Fri, 07/25/2025 - 09:16

sertraline online <a href=" http://www.9kuan9.com/home.php?mod=space&uid=3708934 ">cheap Zoloft</a> or <a href=" https://www.google.bs/url?sa=t&url=https://zoloft.company ">purchase generic Zoloft online discreetly</a>
http://ewin.biz/jsonp/?url=https://zoloft.company:: buy Zoloft online without prescription USA
[url=http://igrab.me/share-email.php?url=https://zoloft.company]buy Zoloft online without prescription USA[/url] Zoloft online pharmacy USA and [url=http://www.xgmoli.com/bbs/home.php?mod=space&uid=6842]cheap Zoloft[/url] Zoloft for sale

Anonymous

TimsothyNor (not verified)

on

Fri, 07/25/2025 - 09:35

Hi there to every one, for the reason that I am genuinely keen of reading this weblog's post to be updated daily. It carries good data.
<a href=https://bestlimorates.com>Local limo company near me</a>

Anonymous

OLanekeW (not verified)

on

Fri, 07/25/2025 - 10:14

you're in reality a excellent webmaster. The website loading speed is amazing. It kind of feels that you are doing any unique trick. Moreover, The contents are masterpiece. you have performed a great task on this topic!
<a href=https://theplantboost.com/penalty-shootout>xxx porno</a>

Anonymous

RobertVap (not verified)

on

Fri, 07/25/2025 - 10:18

generic tadalafil canada <a href=" https://www.yourporntube.com/user/ctqibmzhmr/videos ">generic tadalafil medication</a> or <a href=" https://www.google.dj/url?q=https://tadalafilfromindia.com ">generic tadalafil united states</a>
https://www.google.se/url?sa=t&url=https://tadalafilfromindia.com tadalafil without prescription
[url=http://ssomgmt.ascd.org/profile/createsso/createsso.aspx?returnurl=http:... 2.5 mg online india[/url] price comparison tadalafil and [url=https://civileng.co/user/cbtrnryrtz/?um_action=edit]tadalafil mexico price[/url] tadalafil online 10mg

Anonymous

IsmaelSlile (not verified)

on

Fri, 07/25/2025 - 11:19

Thanks a lot for sharing this with all of us you really realize what you're speaking about! Bookmarked. Kindly additionally seek advice from my web site =). We can have a hyperlink change arrangement between us
<a href=https://theplantboost.com/lucky-jet>sexs porno</a>

Anonymous

LhanekeW (not verified)

on

Fri, 07/25/2025 - 11:27

I believe what you published was actually very reasonable. However, think on this, suppose you added a little information? I ain't saying your information isn't good., however suppose you added a title that makes people want more? I mean %BLOG_TITLE% is a little plain. You should look at Yahoo's front page and see how they create news headlines to get viewers interested. You might add a related video or a picture or two to grab people interested about everything've got to say. In my opinion, it might bring your blog a little bit more interesting.
<a href=https://theplantboost.com/payments>porno sex</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.