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

28413 Comments

Anonymous

kiki4apold (not verified)

on

Fri, 09/19/2025 - 04:57

J’adore a fond 1win Casino, il offre une plongee dans un univers electrisant. La bibliotheque de jeux est impressionnante, avec des machines a sous modernes et dynamiques. Les agents sont toujours prets a aider, garantissant une assistance de qualite. Le processus de retrait est simple et efficace, cependant les offres pourraient etre plus genereuses. Pour conclure, 1win Casino est un incontournable pour ceux qui aiment parier ! Par ailleurs le design est visuellement attrayant, renforce l’immersion totale.

<a href=https://igiasu.com/2025/09/01/comment-les-probabilites-influencent-vos-s... jet 1win</a>|

Anonymous

Phillipiner6apold (not verified)

on

Fri, 09/19/2025 - 05:06

J’adore passionnement Betify Casino, ca ressemble a une plongee dans un univers palpitant. Il y a une profusion de titres varies, proposant des jeux de table classiques et elegants. Le support est ultra-reactif et professionnel, garantissant une aide immediate. Les retraits sont ultra-rapides, parfois j’aimerais plus d’offres promotionnelles. Dans l’ensemble, Betify Casino offre une experience de jeu remarquable pour les adeptes de sensations fortes ! De plus l’interface est fluide et intuitive, ajoute une touche de raffinement a l’experience.

<a href=https://www.rangersforever.co.uk/casinowazamba/decouvrez-betify-casino-p... road 2 betify</a>|

Anonymous

quirkytoad9apold (not verified)

on

Fri, 09/19/2025 - 05:06

Je trouve carrement genial Impressario, c’est une plateforme qui met des etoiles plein les yeux. Il y a un deluge de jeux captivants, proposant des sessions live qui en mettent plein la vue. Le support est dispo 24/7, avec une aide qui fait mouche. Les paiements sont securises et eclatants, quand meme des recompenses en plus ca serait le feu. Bref, Impressario offre un spectacle de jeu inoubliable pour les amateurs de slots qui brillent ! A noter aussi l’interface est fluide et glamour, facilite un show total.
<a href=https://kbire.co.uk/avis-honnete-sur-impressario-en-france/>impressario casino no deposit bonus</a>|

Anonymous

Phillipiner6apold (not verified)

on

Fri, 09/19/2025 - 06:03

Je trouve absolument fantastique Betify Casino, on dirait une energie de jeu irresistible. Les options de jeu sont riches et diversifiees, proposant des jeux de table classiques et elegants. Le service client est exceptionnel, joignable 24/7. Les gains sont verses en un temps record, neanmoins les promotions pourraient etre plus genereuses. En resume, Betify Casino vaut pleinement le detour pour les adeptes de sensations fortes ! En bonus le design est visuellement percutant, facilite chaque session de jeu.

<a href=https://ipmasa.com/?p=272769>virement betify</a>|

Anonymous

quirkytoad9apold (not verified)

on

Fri, 09/19/2025 - 06:03

Je suis totalement hypnotise par Impressario, c’est une plateforme qui met des etoiles plein les yeux. La gamme est une vraie constellation de fun, proposant des sessions live qui en mettent plein la vue. Le service client est digne d’un gala, garantissant un support direct et brillant. Les paiements sont securises et eclatants, de temps en temps des recompenses en plus ca serait le feu. En gros, Impressario garantit un show de fun epique pour les amateurs de slots qui brillent ! En prime l’interface est fluide et glamour, donne envie de revenir pour un rappel.
<a href=https://rexlegaldenver.com/presentation-experte-de-impressario-casino/>i... casino no deposit bonus</a>|

Anonymous

Phillipiner6apold (not verified)

on

Fri, 09/19/2025 - 06:57

Je suis totalement seduit par Betify Casino, ca ressemble a une energie de jeu irresistible. La gamme de jeux est tout simplement phenomenale, avec des machines a sous modernes et dynamiques. Les agents sont toujours disponibles et efficaces, joignable 24/7. Les paiements sont fluides et securises, neanmoins les bonus pourraient etre plus frequents. Globalement, Betify Casino offre une experience de jeu remarquable pour les adeptes de sensations fortes ! Par ailleurs le design est visuellement percutant, facilite chaque session de jeu.

<a href=https://www.gp.inception-example2.com/blog/decouvrez-betify-casino-proba... 247</a>|

Anonymous

quirkytoad9apold (not verified)

on

Fri, 09/19/2025 - 06:57

Je kiffe a fond Impressario, ca donne une energie de star absolue. Les options sont variees et eblouissantes, comprenant des jeux parfaits pour les cryptos. Le service client est digne d’un gala, garantissant un support direct et brillant. Les transactions sont simples comme un refrain, de temps en temps j’aimerais plus de promos qui envoutent. Bref, Impressario est une plateforme qui vole la vedette pour ceux qui kiffent parier avec style ! Bonus l’interface est fluide et glamour, donne envie de revenir pour un rappel.
<a href=https://toutle05.fr/avis-professionnel-sur-impressario-casino/>impressario casino no deposit bonus code</a>|

Anonymous

IsmaelSlile (not verified)

on

Fri, 09/19/2025 - 06:57

At WebPtoPNGHero.com, converting WebP images into PNG format couldn’t be simpler. The interface features a drag-and-drop area where images load instantly, and conversion begins on secure cloud servers. A progress meter keeps you informed, and once each file finishes, PNG versions appear as clickable download links. If you have many images to process, batch mode handles multiple files at the same time, saving precious minutes. The tool runs entirely in your web browser, making it compatible with Windows, macOS, Linux, Android, and iOS alike. No need to install any applications or plugins—just open the site and start converting. All uploads vanish shortly after processing, ensuring privacy and security. Whether you’re optimizing visuals for an e-commerce store, preparing photos for email attachments, or simply sharing snapshots online, WebPtoPNGHero.com delivers reliable, high-fidelity results. The service remains free and ad-free, with no registration required. Convert your WebP images to universally supported PNG files quickly and without hassle.
<a href=https://www.unique-listing.com/gosearch.php?q=webp+to+png>WebPtoPNGHero</a>

Anonymous

Lewislaumn (not verified)

on

Fri, 09/19/2025 - 08:03

Students, professionals, and hobbyists alike rely on OneConverter.com as a trusted resource. High school students use it to complete homework questions, ensuring they understand how to convert between units of volume or temperature. College researchers appreciate its scientific precision when dealing with complex conversions in physics or engineering. Business professionals often need quick currency or time zone calculations to plan international meetings; this site delivers those results instantly. DIY enthusiasts measure materials for home improvement projects by converting square feet to square meters or gallons to liters. Photographers evaluate storage needs by converting between megabytes and gigabytes. Fitness trainers track distances and energy expenditure by switching between miles and kilometers or calories and kilojoules. With OneConverter, there’s no need to memorize dozens of conversion factors — just input your number, choose your units, and the answer appears. The clear layout and straightforward instructions help users learn as they go, making the site both a tool and a teaching aid. Regardless of your field or expertise level, OneConverter.com provides the conversions you need, right when you need them.
<a href=https://roadfood.com/author/cooking-with-kids/>OneConverter</a>

Anonymous

Link building (not verified)

on

Fri, 09/19/2025 - 08:47

<a href=https://kwork.com/offpageseo/15274264/link-building>Link building</a>
Inbound links for SEO include anchor and non-anchor links.

Anchor links contain a primary search term, because such a query is essential for SEO performance.

Non-anchor backlinks are just as important – they represent bare links, while clickability matters because they offer access for search robots; bots go your website and deeper pages, that helps the site.

Updates are shared through ahrefs. When the number of links is limited for one of the services, I report on the service with the highest count in backlink volume because of delays in indexation.

Anonymous

Louisidows (not verified)

on

Fri, 09/19/2025 - 08:47

<a href=" http://andreasgraef.de/url?q=https://clearmedshub.shop:: "></a> or <a href=" https://vedicnutraceuticals-uk.com/user/vqbjncudkh/?um_action=edit "></a>
https://maps.google.com.kw/url?q=http://pharmalibrefrance.com and https://www.suizhoushi.com/home.php?mod=space&uid=17501538
[url=https://clients1.google.ae/url?q=http://pharmalibrefrance.com][/url] or [url=http://156.226.17.6/home.php?mod=space&uid=1299119][/url]

Anonymous

ShanekeW (not verified)

on

Fri, 09/19/2025 - 09:08

Picture this: you’re cooking dinner and the recipe calls for grams, but your scale only shows ounces. Later, you’re helping your child with homework and suddenly need to convert meters per second into kilometers per hour. The next morning, you’re preparing a presentation and realize the client wants it in PDF format. Three different situations, three different problems - and usually, three different apps.
That’s the hassle OneConverter eliminates. It’s an all-in-one online tool designed for people who want life to be simpler, faster, and smarter. No downloads, no subscriptions, no headaches - just answers, right when you need them.

Unit Conversions Made Effortless
Most conversion tools handle only the basics. OneConverter goes further - much further. With more than 50,000 unit converters, it can handle everyday situations, advanced academic work, and professional challenges without breaking a sweat.
Everyday Basics: length, weight, speed, temperature, time, area, volume, energy.
Engineering & Physics: torque, angular velocity, density, acceleration, moment of inertia.
Heat & Thermodynamics: thermal conductivity, thermal resistance, entropy, enthalpy.
Radiology: absorbed dose, equivalent dose, radiation exposure.
Fluids: viscosity, flow rate, pressure, surface tension.
Electricity & Magnetism: voltage, current, resistance, capacitance, inductance, flux.
Chemistry: molarity, concentration, molecular weight.
Astronomy: light years, parsecs, astronomical units.
Everyday Extras: cooking measures, shoe and clothing sizes, fuel efficiency.

From the classroom to the lab, from the office to your kitchen - OneConverter has a solution ready.
<a href=https://techktimes.com/leveraging-technology-in-employee-development-pro...

Anonymous

Richardlaurn (not verified)

on

Fri, 09/19/2025 - 09:51

<a href=https://reumatologia.org.br>kraken ссылка зеркало</a> kraken onion, kraken onion ссылка, kraken onion зеркала, kraken рабочая ссылка onion, сайт kraken onion, kraken darknet, kraken darknet market, kraken darknet ссылка, сайт kraken darknet, kraken актуальные ссылки, кракен ссылка kraken, kraken официальные ссылки, kraken ссылка тор, kraken ссылка зеркало, kraken ссылка на сайт, kraken онион, kraken онион тор, кракен онион, кракен онион тор, кракен онион зеркало, кракен даркнет маркет, кракен darknet, кракен onion, кракен ссылка onion, кракен onion сайт, kra ссылка, kraken сайт, kraken актуальные ссылки, kraken зеркало, kraken ссылка зеркало, kraken зеркало рабочее, актуальные зеркала kraken, kraken сайт зеркала, kraken маркетплейс зеркало, кракен ссылка, кракен даркнет

Anonymous

ChrisMum (not verified)

on

Fri, 09/19/2025 - 11:30

Cheap Cialis <a href=" https://toolbarqueries.google.gg/url?sa=j&source=web&rct=j&url=https://e... ">Generic Cialis price</a> or buy cialis pill <a href=" http://dnp-malinovka.ru/user/tgemrwcaho/?um_action=edit ">Cialis 20mg price</a>
https://www.google.com.mx/url?q=https://evertrustmeds.shop Generic Cialis without a doctor prescription and https://www.yourporntube.com/user/bhhmprrabv/videos Cheap Cialis
[url=https://www.okpodiatrists.org/external-link?url=https://evertrustmeds.sh... Tadalafil 20mg[/url] Generic Tadalafil 20mg price and [url=http://foru1f40m.bunbun000.com/bbs/home.php?mod=space&uid=9682815]Cialis without a doctor prescription[/url] Cheap Cialis

Anonymous

Earnestvaw (not verified)

on

Fri, 09/19/2025 - 12:36

Picture this: you’re cooking dinner and the recipe calls for grams, but your scale only shows ounces. Later, you’re helping your child with homework and suddenly need to convert meters per second into kilometers per hour. The next morning, you’re preparing a presentation and realize the client wants it in PDF format. Three different situations, three different problems - and usually, three different apps.
That’s the hassle OneConverter eliminates. It’s an all-in-one online tool designed for people who want life to be simpler, faster, and smarter. No downloads, no subscriptions, no headaches - just answers, right when you need them.

Unit Conversions Made Effortless
Most conversion tools handle only the basics. OneConverter goes further - much further. With more than 50,000 unit converters, it can handle everyday situations, advanced academic work, and professional challenges without breaking a sweat.
Everyday Basics: length, weight, speed, temperature, time, area, volume, energy.
Engineering & Physics: torque, angular velocity, density, acceleration, moment of inertia.
Heat & Thermodynamics: thermal conductivity, thermal resistance, entropy, enthalpy.
Radiology: absorbed dose, equivalent dose, radiation exposure.
Fluids: viscosity, flow rate, pressure, surface tension.
Electricity & Magnetism: voltage, current, resistance, capacitance, inductance, flux.
Chemistry: molarity, concentration, molecular weight.
Astronomy: light years, parsecs, astronomical units.
Everyday Extras: cooking measures, shoe and clothing sizes, fuel efficiency.

From the classroom to the lab, from the office to your kitchen - OneConverter has a solution ready.
<a href=https://appletoo.us/top-online-calculators/>OneConverter</a>

Anonymous

cleaningplus-511 (not verified)

on

Fri, 09/19/2025 - 12:47

Генеральная уборка <a href=https://cleaningplus.ru/services/uborka-kvartiry>https://cleaningplus.ru... в Москве: квартиры, дома, офисы. Полный комплекс услуг — мытьё окон, чистка мебели, удаление пыли и грязи. Профессиональные клинеры, безопасные средства и гарантия качества.

Anonymous

Richardlaurn (not verified)

on

Fri, 09/19/2025 - 13:08

<a href=https://reumatologia.org.br>kraken сайт зеркала</a> kraken onion, kraken onion ссылка, kraken onion зеркала, kraken рабочая ссылка onion, сайт kraken onion, kraken darknet, kraken darknet market, kraken darknet ссылка, сайт kraken darknet, kraken актуальные ссылки, кракен ссылка kraken, kraken официальные ссылки, kraken ссылка тор, kraken ссылка зеркало, kraken ссылка на сайт, kraken онион, kraken онион тор, кракен онион, кракен онион тор, кракен онион зеркало, кракен даркнет маркет, кракен darknet, кракен onion, кракен ссылка onion, кракен onion сайт, kra ссылка, kraken сайт, kraken актуальные ссылки, kraken зеркало, kraken ссылка зеркало, kraken зеркало рабочее, актуальные зеркала kraken, kraken сайт зеркала, kraken маркетплейс зеркало, кракен ссылка, кракен даркнет

Anonymous

FobertIrrah (not verified)

on

Fri, 09/19/2025 - 13:31

Digital life demands accuracy. Engineers, researchers, students, and professionals rely on precise numbers and flawless documents. Yet the tools they need are often scattered across multiple apps, hidden behind subscriptions, or limited in scope. OneConverter addresses this challenge by consolidating advanced unit conversion calculators and PDF document utilities into a single, accessible platform.

Comprehensive Unit Conversions
The strength of OneConverter lies in its range. With more than 50,000 unit converters, it covers virtually every field of science, technology, and daily life.
Core Measurements: conversions for length, weight, speed, temperature, area, volume, time, and energy. These fundamental tools support everyday requirements such as travel, shopping, and cooking.
Engineering & Physics: advanced calculators for torque, density, angular velocity, acceleration, and moment of inertia, enabling precision in both academic study and professional design.
Heat & Thermodynamics: tools for thermal conductivity, resistance, entropy, and enthalpy, providing clarity for scientific research and industrial applications.
Radiology: units such as absorbed dose, equivalent dose, and radiation exposure, essential for healthcare professionals and medical physicists.
Fluid Mechanics: viscosity, pressure, flow rate, and surface tension, all indispensable in laboratory and engineering environments.
Electricity & Magnetism: extensive coverage including voltage, current, resistance, inductance, capacitance, flux, and charge density, supporting fields from electronics to energy.
Chemistry: molarity, concentration, and molecular weight calculators, saving valuable time in laboratories and classrooms.
Astronomy: astronomical units, parsecs, and light years, serving both researchers and students exploring the cosmos.
Practical Applications: everyday conversions for recipes, fuel efficiency, and international clothing sizes.
By combining breadth and accuracy, OneConverter ensures that calculations are reliable, consistent, and instantly available.
<a href=https://www.compspice.com/how-to-convert-ml-to-cups/>oneconverter.com</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.