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

16263 Comments

Anonymous

CecilMaich (not verified)

on

Sun, 01/26/2025 - 11:10

priligy <a href=" http://forum.orangepi.org/home.php?mod=space&uid=4829579 ">Priligy tablets</a> or <a href=" https://maps.google.ng/url?q=https://dappharm.com ">dapoxetine price</a>
https://images.google.co.uz/url?q=https://dappharm.com priligy
[url=http://a-bisu.com/topart161/_m/index.php?a=free_page/goto_mobile&referer... dapoxetine online[/url] Priligy tablets and [url=https://www.51xiansuo.cn/home.php?mod=space&uid=18837]dapoxetine price[/url] dapoxetine online

Anonymous

TimothyFlurE (not verified)

on

Sun, 01/26/2025 - 12:26

Kamagra tablets <a href=" http://bbs.soumoli.com/home.php?mod=space&uid=97069 ">Kamagra Oral Jelly</a> or <a href=" https://maps.google.com.ua/url?q=https://kamapharm.com ">super kamagra</a>
https://images.google.com.my/url?q=j&sa=t&url=https://kamapharm.com super kamagra
[url=https://www.google.com.uy/url?sa=t&url=https://kamapharm.com]super kamagra[/url] п»їkamagra and [url=https://www.gztongcheng.top/home.php?mod=space&uid=145074]cheap kamagra[/url] sildenafil oral jelly 100mg kamagra

Anonymous

RaymondUnwic (not verified)

on

Sun, 01/26/2025 - 13:53

semaglutide tablets for weight loss <a href=" http://www.9kuan9.com/home.php?mod=space&uid=2427485 ">buy rybelsus online</a> or <a href=" https://images.google.com.ph/url?q=https://semapharm24.com ">generic rybelsus tabs</a>
http://www.google.com.pg/url?q=https://semapharm24.com semaglutide best price
[url=http://www.potthof-engelskirchen.de/out.php?link=http://semapharm24.com]... tablets for weight loss[/url] rybelsus semaglutide tablets and [url=https://investsocial.com/pl/members/451039-bxzhmhfldl]semaglutide tablets for weight loss[/url] cheap semaglutide pills

Anonymous

Williejiz (not verified)

on

Sun, 01/26/2025 - 15:27

buy cytotec pills online cheap <a href=" http://www.88moli.top/home.php?mod=space&uid=8470 ">cytotec abortion pill</a> or <a href=" http://maps.google.se/url?q=https://cytpharm.com ">buy cytotec</a>
https://maps.google.co.ug/url?rct=t&sa=t&url=https://cytpharm.com buy cytotec in usa
[url=https://maps.google.mv/url?sa=t&url=http://cytpharm.com]buy misoprostol over the counter[/url] cytotec pills buy online and [url=https://www.oppo.xyz/home.php?mod=space&uid=8550]Misoprostol 200 mg buy online[/url] Misoprostol 200 mg buy online

Anonymous

TimothyFlurE (not verified)

on

Sun, 01/26/2025 - 16:25

buy kamagra online usa <a href=" https://103.94.185.62/home.php?mod=space&uid=1279501 ">super kamagra</a> or <a href=" https://cse.google.co.ls/url?q=https://kamapharm.com ">sildenafil oral jelly 100mg kamagra</a>
https://toolbarqueries.google.ml/url?q=http://kamapharm.com sildenafil oral jelly 100mg kamagra
[url=http://hir.ize.hu/click.php?id=251831&categ_id=7&url=http://kamapharm.co... kamagra online usa[/url] Kamagra Oral Jelly and [url=https://app.guiigo.com/home.php?mod=space&uid=16010]Kamagra tablets[/url] Kamagra 100mg

Anonymous

CecilMaich (not verified)

on

Sun, 01/26/2025 - 16:41

dapoxetine online <a href=" https://www.oppo.xyz/home.php?mod=space&uid=8242 ">buy dapoxetine online</a> or <a href=" https://toolbarqueries.google.fm/url?sa=t&url=https://dappharm.com ">cheap priligy</a>
https://clients1.google.com.br/url?q=https://dappharm.com dapoxetine online
[url=https://images.google.com.tj/url?sa=t&url=https://dappharm.com]DapPharm[... priligy and [url=http://jiangzhongyou.net/space-uid-576723.html]Priligy tablets[/url] DapPharm

Anonymous

RaymondUnwic (not verified)

on

Sun, 01/26/2025 - 17:55

Sema Pharm 24 <a href=" https://www.51xiansuo.cn/home.php?mod=space&uid=18796 ">generic rybelsus tabs</a> or <a href=" https://maps.google.mv/url?sa=t&url=http://semapharm24.com ">semaglutide tablets price</a>
http://images.google.pn/url?q=http://semapharm24.com SemaPharm24
[url=http://alt1.toolbarqueries.google.gy/url?q=https://semapharm24.com]buy rybelsus online[/url] semaglutide tablets price and [url=http://www.1moli.top/home.php?mod=space&uid=1034581]Sema Pharm 24[/url] semaglutide tablets store

Anonymous

Williejiz (not verified)

on

Sun, 01/26/2025 - 19:42

buy cytotec over the counter <a href=" http://80tt1.com/home.php?mod=space&uid=2647274 ">purchase cytotec</a> or <a href=" https://images.google.co.mz/url?sa=t&url=https://cytpharm.com ">Cytotec 200mcg price</a>
http://bernhardbabel.com/url?q=https://cytpharm.com buy cytotec in usa
[url=https://clients1.google.gr/url?q=https://cytpharm.com]cytotec buy online usa[/url] cytotec pills buy online and [url=http://xn--0lq70ey8yz1b.com/home.php?mod=space&uid=1269198]buy cytotec[/url] buy cytotec pills

Anonymous

TimothyFlurE (not verified)

on

Sun, 01/26/2025 - 23:55

Kamagra 100mg <a href=" https://bbs.xiaoditech.com/home.php?mod=space&uid=2319495 ">sildenafil oral jelly 100mg kamagra</a> or <a href=" https://cse.google.com.qa/url?q=https://kamapharm.com ">buy Kamagra</a>
http://rockclimbing.com/cgi-bin/forum/gforum.cgi?url=http://kamapharm.com Kamagra Oral Jelly
[url=https://cse.google.com.ua/url?sa=t&url=https://kamapharm.com]sildenafil oral jelly 100mg kamagra[/url] buy kamagra online usa and [url=https://www.sdsdsoft.com/upload/home.php?mod=space&uid=3523352]buy kamagra online usa[/url] Kamagra 100mg price

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.