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

19766 Comments

Anonymous

StevenRes (not verified)

on

Sat, 02/15/2025 - 08:24

buy amoxicillin without prescription <a href=" http://xn--0lq70ey8yz1b.com/home.php?mod=space&uid=1422114 ">amoxacillian without a percription</a> or <a href=" http://www.kip-k.ru/best/sql.php?=amohealthpharm.com ">amoxicillin over counter</a>
https://cse.google.co.il/url?sa=t&url=https://amohealthpharm.com price for amoxicillin 875 mg
[url=https://images.google.com.ag/url?q=https://amohealthpharm.com]amoxicillin 30 capsules price[/url] amoxicillin 500 tablet and [url=http://www.88moli.top/home.php?mod=space&uid=10755]buy amoxicillin 500mg canada[/url] amoxicillin azithromycin

Anonymous

Leroymam (not verified)

on

Sat, 02/15/2025 - 16:53

doxycycline gel in india <a href=" http://xn--0lq70ey8yz1b.com/home.php?mod=space&uid=1422990 ">doxycycline 20mg canada</a> or <a href=" https://clients1.google.ml/url?q=http://doxhealthpharm.com ">buy doxycycline 100mg online uk</a>
https://wikiroutes.info/pt/away?to=https://doxhealthpharm.com buy doxycycline 100mg capsules
[url=https://www.google.hn/url?q=https://doxhealthpharm.com]doxycycline 40 mg generic coupon[/url] doxycycline medication cost and [url=http://www.donggoudi.com/home.php?mod=space&uid=2382688]doxycycline prescription uk[/url] doxycycline for sale online

Anonymous

StevenRes (not verified)

on

Sat, 02/15/2025 - 18:29

where can i buy amoxicillin without prec <a href=" https://www.gztongcheng.top/home.php?mod=space&uid=288680 ">buying amoxicillin online</a> or <a href=" https://maps.google.co.nz/url?q=https://amohealthpharm.com ">order amoxicillin online</a>
https://images.google.me/url?sa=t&url=https://amohealthpharm.com order amoxicillin online no prescription
[url=https://www.google.pn/url?sa=t&url=https://amohealthpharm.com]amoxicillin 750 mg price[/url] where can i get amoxicillin and [url=http://iapple.minfish.com/home.php?mod=space&uid=4004536]amoxicillin 800 mg price[/url] can you buy amoxicillin uk

Anonymous

Richardlop (not verified)

on

Sat, 02/15/2025 - 20:11

zithromax <a href=" http://80tt1.com/home.php?mod=space&uid=2789703 ">where can i buy zithromax medicine</a> or <a href=" https://www.martialartsplanet.com/proxy.php?link=https://zithropharm.com ">zithromax antibiotic</a>
http://www.v6.to/goto.php?http://zithropharm.com/ zithromax 500 mg for sale
[url=http://images.google.com.sv/url?q=https://zithropharm.com]where to get zithromax[/url] zithromax and [url=http://xn--0lq70ey8yz1b.com/home.php?mod=space&uid=1422478]zithromax 500 mg[/url] zithromax z-pak

Anonymous

Samuelinjer (not verified)

on

Sat, 02/15/2025 - 22:08

where buy cheap clomid now <a href=" https://www.soumoli.com/home.php?mod=space&uid=116304 ">where to buy clomid without insurance</a> or <a href=" https://toolbarqueries.google.dj/url?q=https://clmhealthpharm.com ">cost cheap clomid without dr prescription</a>
https://www.mundijuegos.com/messages/redirect.php?url=http://clmhealthph... buy generic clomid pill
[url=https://www.lolinez.com/?http://clmhealthpharm.com]where can i buy generic clomid[/url] where buy clomid without dr prescription and [url=http://www.9kuan9.com/home.php?mod=space&uid=2577898]can you get cheap clomid prices[/url] where to get clomid prices

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.