Same issue here -- TTL output from the AWC708C never seems to be pulled low. Still troubleshooting.

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MY LASER MACHINE VERTICAL DOES NOT ACTIVATE THE LASER TUBE, VERIFY THE POWER SUPPLIES AND THEY ARE WORKING WHICH THE PROBLEM CAN BE

Most of our products have a warranty that extends for 1 year; however, there are parts like end mills and laser tubes which are considered consumables. These parts, when used, become worn, or the usable life is decreased. Laser tubes are parts that, when used, shorten its life, and especially when proper methods are not used (i.e. running the tube with water), can drastically reduce the life of the tube. Therefore, the warranty for laser tubes are 30 days if the laser tube was not used.

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What warranty is there on the 40W laser and power supply?

Upgrade your mirrors to SI coated mirrors, using a HQ ZnSe lens and even pushing up to a beam expander will all boost power. The ideal order of experimenation for lowest cost would be changing out for a higher quality lens labeled HQ ZnSE lens. Next would be SI mirrors, which will absorb less heat and reflect better, the last would be to use a beam expander which expands the beam, reducing the heat signature on the mirrors and makes a tighter focal width.

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CAN BOOST THE POWER OF MY BLACKTOOTH LASER?

This video will illustrate how to test for laser power:

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LOSE POWER IN MY LASER TUBE

Our 40 watt Laser Tubes are approximately 712 mm or 28 inches in length. May I ask why are you looking for a longer laser tube? If you need the length to be able to fit in your existing machine, you should consider creating a new mount within the machine so a shorter tube can be mounted in the same location.

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Do you sell 1000mm long 40W laser tubes?

This video will illustrate how to test for laser power:

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HOW TO KNOW IF THE POWER SUPPLY OF THE LASER TUBE IS DAMAGED

Cooling is not as tricky as you might think. There is 3 ways to approach this, only 2 really matter for a low scale 40w setup. First one is the cheapest and easiest. The higher the temp of water the worse your performance will be, from what I understand anything in the 30C range is about the most tolerable it gets. Lower is better. But not frozen...from what I've been told a very experienced cutter, he found 8C was the highest power he achieved.

1. Use a 5 Gallon resovoir system which gives you a fairly large space of water to heat up before you need to tend to it. Add about a cup of anti-freeze to the mix of DISTILLED water. You don't want ANY minerals in the water that might build up in your system. The anti-freeze works to keep algae and other ickies from growing in your water.

2. Use a smaller resovoir system (or even closed loop) and install 1 or more radiators found in CPU cooling systems with 120mm fans attached. This will continously cool your water system to ambient room temperatures, but with a tiny resovoir it will be difficult to add things like ice-packs to drop the temps if the ambient is quite hot.

3. Using an industrial coolant system. Overkill and unless your cutting A LOT, this is a very expensive option to take. You can also explore the idea of Peltier cooling but it is extremely expensive electricity/BTU wise compared to an industrial cooler.

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HOW TO COOL THE BLACKTOOTH 40W LASER TUBE

Yes, from our test with clear and opaque acrylic, the CO2 laser can cut fully through.

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Will the 40W CO2 laser cut through clear and color acrylic?

CO2 lasers can (40w included) can mark glass, but it is not actually etching the glass. When a CO2 laser's focal lasing energy is at the surface, or just past the surface of glass, the air inside that portion of the glass will expand and cause a tiny crack. This gives the appearance of etched glass, but not with the same fineness of etching from, say, sand blasting or acid etching (with hexafluorosilicic acid). If the laser "etching" of the glass is not to the fineness that you desire, you can laser cut the adhesive material used in the acid etching process as an alternative.

You also need to consider the glass you are using. I have learned that not all glass is created equal. Some glass will work well for this (dollar store glass we have tested and works well), and some will not. I believe that lasing tempered glass will probably give some interesting results.


Additional Information:

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Will the 40W CO2 laser etch glass?

You can find all of the information including the price on the blackTooth Laser cutter and engraver page found here: https://www.buildyourcnc.com/blackToothLaserCutterAndEngraver.aspx

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How much is your ; blackTooth Laser Cutter and Engraver CO2 40W

These tubes are rated for 18mA. The power supply is able to push up to 21mA. This is a very dangerous thing to do. If you are pushing the tube beyond 18mA you will cut it's life by QUITE a bit.

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HOW HARD CAN PUSH MY BLACKTOOTH LASER?

Yes, it is found in laser components section

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DO YOU GUYS SELL THE POTENTIOMETER FOR YOUR LASER SYSTEM BY ITSELF

Hour meter. This will tell you exactly how long your system has been 'on' giving you a more accurate bead on the length of your tubes life.

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WHAT CAN ADD TO MY BLACKTOOTH LASER CUTTER MEASURE THE TIME OF USE?

A cutting surface. I bought myself a aluminum 'egg crate' mesh from my local HVAC company. They are used a cover for fluorescent lights and work great for low impact cutting surface. They come in 4'x8' sheets and are easily cut to fit. The other side is if you can find a steel honeycomb cutting bed to fit. These can be quite costly or fairly affordable depending where you are looking. The benefit of a steel honeycomb is you can use high power magnets to hold material down.

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WHAT CAN USE BELOW MY WORKPIECE AS SUBSTRATE IN BLACKTOOTH LASER CUTTER?

Temperature probe monitor. Very valuable. This keeps you up to date on your coolant temperature levels.

Voltage meter. This will tell you the exact level of voltage/power you are running telling the laser to run at instead of an arbitrary mark on a drawn wheel around your POT.

Ammeter sensitive to 1mA. This will be sure your not over driving your tube and reducing it's life significantly.

Hour meter. This will tell you exactly how long your system has been 'on' giving you a more accurate bead on the length of your tubes life.

Exhaust fan upgrade. The current fan included is 100CFM. You can buy 120mm fans that push 250CFM and I have included a guide on how to go about doing this here. http://buildyourtools.com/phpBB3/viewto ... 8cdd1802bf

To push the exhaust fan even further, if you have the room/power, I would highly recommend investing in a 600+ CFM "Dust Collector" system. 250CFM is still not suffice to draw all the smoke that can come off of 3mm or 1/8 MDF cutting job.

A cutting surface. I bought myself a aluminum 'egg crate' mesh from my local HVAC company. They are used a cover for fluorescent lights and work great for low impact cutting surface. They come in 4'x8' sheets and are easily cut to fit. The other side is if you can find a steel honeycomb cutting bed to fit. These can be quite costly or fairly affordable depending where you are looking. The benefit of a steel honeycomb is you can use high power magnets to hold material down.

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HOW CAN YOU ENHANCE THE BLACKTOOTH LASER CUTTER?

Shipping crate size 121" X 36" X 92"

Weight 511 LBS

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WHAT ARE THE SHIPPING DIMENSIONS FOR VERTICAL LASER

The password is: 608

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WHAT IS THE SYSTEM PASSWORD FOR LASER CONTROL UNIT?

The spindle inverter (VFD) will run on a 220V (or between 170V-250V) power source with either 50Hz or 60Hz.

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DOES THE SPINDLE RUN ON A 50HZ POWER SOURCE?

no, it will only work on anodized aluminum

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WILL THE LASER ENGRAVER WORK ON NON-ANODIZED ALUMINUM