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

27726 Comments

Anonymous

Thomaswhody (not verified)

on

Thu, 06/19/2025 - 23:41

farmacia dieci <a href=" https://milburnflooring.com/user/ygbsokdzyo/ ">lozione per il corpo significato</a> or <a href=" https://www.google.li/url?sa=t&url=https://efarmaciait.com ">top farmacia opinioni</a>
https://www.google.mn/url?q=https://efarmaciait.com normix 4 compresse al giorno
[url=http://clients1.google.lu/url?sa=t&url=http://efarmaciait.com]farmacie online autorizzate[/url] travocort va bene per prurito intimo and [url=https://bebele.ru/user/wmjzbtaycy/]ecommerce farmacia[/url] whey traduzione

Anonymous

HarrycrynC (not verified)

on

Fri, 06/20/2025 - 00:32

pomada farmacia <a href=" https://cv.devat.net/user/ltupwlykpy/?um_action=edit ">farmacias on line</a> or <a href=" https://clients1.google.com.tw/url?q=https://papafarma.com ">tadalafilo 5 mg precio mГЎs barato</a>
https://www.google.so/url?sa=t&url=https://papafarma.com vender farmacia
[url=http://clients5.google.com/url?q=http://papafarma.com:::]farmacias cercanas a mi ubicaciГіn[/url] medicamentos online and [url=http://yangtaochun.cn/profile/hhfrfosvtp/]on farmacia[/url] comprar cialis online opiniones

Anonymous

DanielPam (not verified)

on

Fri, 06/20/2025 - 01:58

Гёrerenser spiral apotek <a href=" https://afafnetwork.com/user/wtccyeddoo/?um_action=edit ">clotrimazolum apotek</a> or <a href=" https://www.the-mainboard.com/proxy.php?link=https://raskapotek.com:: ">neti pot apotek</a>
http://www.domaindirectory.com/policypage/terms?domain=raskapotek.com rosevann apotek
[url=https://www.google.lu/url?q=https://raskapotek.com]ankelortose apotek[/url] cpap maske apotek and [url=https://www.carrier.co.za/index.php/user/pwlxgijqsx/?um_action=edit]ph papir apotek[/url] tissekladd apotek

Anonymous

Jamesvic (not verified)

on

Fri, 06/20/2025 - 04:03

aminosyror lista <a href=" https://shockingbritain.com/user/ftdhwspxxh/ ">mariatistel apotea</a> or <a href=" http://images.google.bi/url?q=https://svenskapharma.com ">nässpray barn 1 år</a>
https://maps.google.ws/url?sa=t&url=https://svenskapharma.com köpa östrogen receptfritt
[url=https://maps.google.nu/url?q=https://svenskapharma.com]sommarjobb apotek[/url] glycerin apotek and [url=https://shipcoasts.com/user/zmduygtdfq/?um_action=edit]doppler apotek[/url] apotek testosteron

Anonymous

DanielPam (not verified)

on

Fri, 06/20/2025 - 05:22

herpes apotek <a href=" http://bbs.51pinzhi.cn/home.php?mod=space&uid=6788538 ">retinol serum apotek</a> or <a href=" https://www.google.co.ls/url?q=https://raskapotek.com ">collagen apotek</a>
https://27.glawandius.com/index/d2?diff=0&source=og&campaign=13142&conte... flГҐtt vaksine apotek
[url=https://www.google.ws/url?q=https://raskapotek.com:::]diarГ© hund apotek[/url] lagerstatus apotek and [url=https://nhadat24.org/author/ncerkozxiu]korona hurtigtest apotek[/url] sГҐr hals apotek

Anonymous

Thomaswhody (not verified)

on

Fri, 06/20/2025 - 10:01

farma shop <a href=" http://www.sportchap.ru/user/eagdmepfow/ ">delecit 400</a> or <a href=" http:"//www.is.kyusan-u.ac.jp/htmllint/htmllint.cgi?ViewSource=on;URL=https://efarmaciait.com" ">trausan 1000</a>
https://www.google.com.eg/url?q=https://efarmaciait.com robilas in gravidanza
[url=http://www.marcomanfredini.it/radio/visualizzacollezione.php?paginanews=... crema per prurito intimo[/url] drolessano opinioni and [url=https://www.hapkido.com.au/user/dai35mailrxcorp-com/]40 g in ml[/url] robilas a cosa serve

Anonymous

Jamesvic (not verified)

on

Fri, 06/20/2025 - 11:13

apotek dk <a href=" http://www.9kuan9.com/home.php?mod=space&uid=3510850 ">apotek självtest covid-19</a> or <a href=" http://www.city-fs.de/url?q=https://svenskapharma.com ">protein bars billigt</a>
https://www.google.com.ar/url?q=https://svenskapharma.com omeprazol prisjakt
[url=https://toolbarqueries.google.com.af/url?q=https://svenskapharma.com]online pharmacy[/url] apotek assistent and [url=https://www.news-adhoc.com/author/lzbcirtton/]online läkare recept[/url] vilket apotek har snabbast leverans

Anonymous

Thomaswhody (not verified)

on

Fri, 06/20/2025 - 14:18

polase bustine foglietto illustrativo <a href=" http://iapple.minfish.com/home.php?mod=space&uid=5072434 ">ozempic 1 mg online</a> or <a href=" https://cse.google.com.sb/url?sa=t&url=https://efarmaciait.com ">tester profumi significato</a>
http://www.marineclick.com/redirect.php?redir=efarmaciait.com prezzo vertiserc 24 mg
[url=https://www.google.dj/url?sa=t&url=https://efarmaciait.com]effimia pillola prezzo[/url] lasix ricetta and [url=https://blog.techshopbd.com/user-profile/csjflhppdc/?um_action=edit]care... costo[/url] normix 400 mg

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.