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Question #: 593

Question: HOW BAD IS THE SMOKE AND EXHAUST USING BLACKTOOTH?

Current Solution

I'll be honest, it can be pretty awful at times. You'll want a dedicated exhaust line. Cut a new hole, make a dedicated line. Also, invest in a charcoal air filter, it will help. Trust me. They can also be done DIY very inexpensively. Buy a "Universal Pre-filter" and simply wrap it around a screen and have air push down through the screen wrapped in the charcoal laden felt. $20 + fan + screen. Away you go =)

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Other Possible Solutions to this Question

  • how can I exhaust the blacktooth co2 laser cutter

    Exhausting the blackTooth laser cutter is a very important consideration and should be taken seriously, especially if you are cutting materials that give off toxic fumes when the material is burned. You will want a 4 inch hose to connect from the blackTooth to a blower, and another 4 inch hose to connect from the blower to the outside. The blower should be sufficient to provide completely negative pressure within the laser enclosure so there will be no escape of gasses.

    The connections at the machine, at the blower and at the location the hose exhausts outside should be thoroughly checked for leaks. Use a gasket, or silicone. Once complete, try cutting a non-toxic material that will give off an odor (wood, or non-toxic plastic) and try the system and determine if the smell is present.

    Click the link to respond:
    how can I exhaust the blacktooth co2 laser cutter

  • How to wire the Laser Power Supply with an arduino & GRBL ? (I'm not using a blacktooth laser cutter)

    There is a th or tl on the laser power supply that serves as the trigger on a high or low signal. There is also a potentiometer "in" terminal that will accept a variable signal from 0v to 5v to control intensity. You can use either of these features to fire the laser tube.

    If you have gotten grbl to work, then, no doubtedly, you have the expertise to know the output features of grbl. If grbl allows a pwm output, you can tie this to the potentiometer terminal on the power supply. Otherwise, you will need to use a digital output to control the power supply using th or tl.

    Additional Information:

    Click the link to respond:
    How to wire the Laser Power Supply with an arduino & GRBL ? (I'm not using a blacktooth laser cutter)

  • HOW DIFFICULT IS IT TO BUILD THE BLACKTOOTH LASER CUTTER?

    The blackTooth Laser cutter and Engraver can be built in a weekend. Take a look at the build instructions and try to determine if you feel you have sufficient capability to put together the laser system.

    Click the link to respond:
    HOW DIFFICULT IS IT TO BUILD THE BLACKTOOTH LASER CUTTER?

  • HOW DIFFICULT IS IT TO BUILD THE BLACKTOOTH

    The blackTooth Laser cutter and Engraver can be built in a weekend. Take a look at the build instructions and try to determine if you feel you have sufficient capability to put together the laser system.

    Click the link to respond:
    HOW DIFFICULT IS IT TO BUILD THE BLACKTOOTH

  • HOW DIFFICULT IS IT TO BUILD THE BLACKTOOTH LASER CUTTER?

    The blackTooth Laser cutter and Engraver can be built in a weekend. Take a look at the build instructions and try to determine if you feel you have sufficient capability to put together the laser system.

    Click the link to respond:
    HOW DIFFICULT IS IT TO BUILD THE BLACKTOOTH LASER CUTTER?

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

    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

    Click the link to respond:
    How much is your ; blackTooth Laser Cutter and Engraver CO2 40W

  • WHAT IS D.O.F OR DEPTH OF FIELD FOR THE BLACKTOOTH LASER AND LENS?

    Depth of Field. This is how far the focal point goes before re-expanding again. With a 2" lens, you have approximately 2-3mm of DOF. This means that you'll have 2-3mm of perfectly focused laser before it starts to re-expand again. If you have a 4" lens, you will have up to 7mm of DOF.

    Click the link to respond:
    WHAT IS D.O.F OR DEPTH OF FIELD FOR THE BLACKTOOTH LASER AND LENS?

  • what is the size/width of pulley and timing belt used in Blacktooth laser cutter ?

    The blackTooth uses MXL timing belt with 1/4" MXL Drive Pulley 20 teeth.

    Click the link to respond:
    what is the size/width of pulley and timing belt used in Blacktooth laser cutter ?

  • HOW CAN YOU ENHANCE THE 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.

    Click the link to respond:
    HOW CAN YOU ENHANCE THE BLACKTOOTH LASER CUTTER?

  • Is there any precision or accuracy difference between the vertical and blacktooth lasers?

    I will address the two separately (precision and accuracy):

    Precision (repeatability):
    This is most closely related to the resolution. The blackTooth uses the same mechanical drive (timing belts and pulley) of the same ratios and specifications, so the two machines will be the same in this respect.

    Accuracy:

    The output of the machine (the final physical work) matching the input given to the machine (the design data or instructions for the machine to product the physical work. This has to do with both resolution and how well the machine will hold up over time and through environmental changes.

    With that said, both machines have very similar attributes in mechanics and structure. The overall structure is made of MDO (Medium Density Overlay) and has a very low coefficient of linear expansion with regards to temperature change, so accuracy will not be affected in any appreciable manner over time with the two machines. The Vertical Laser XL does use more industry standard rails to hold the heavy gantry, but this will be differ appreciably since the blackTooth will exhibit rigidity by virtue of its size.

    It really is best to consider the application and size as the main aspects of deciding between these two machines.

    Hope this helps.


    Additional Information:
    We're looking at getting the vertical so we can run both large and small jobs on the same machine. It sounds like running a small job on the vertical (using a positioning jig) would provide results at least as
    good as running the same job on the blacktooth. Does this sound about right?

    Click the link to respond:
    Is there any precision or accuracy difference between the vertical and blacktooth lasers?

  • What´s the size and weight of the blacktooth shipping box?

    For our blackTooth laser cuter and engraver, the specified packages in shipment may vary to option chosen and additional purchases.

    3 packages:
    40" x 21" x 5"/54 lb.
    17" x 12" x 12"/27 lb.
    40" x 10" x 7"/5 lb.

    Click the link to respond:
    What´s the size and weight of the blacktooth shipping box?

  • HOW TO COOL THE BLACKTOOTH 40W LASER TUBE

    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.

    Click the link to respond:
    HOW TO COOL THE BLACKTOOTH 40W LASER TUBE

  • How long does it take to build the blackTooth Laser Cutter?

    The blackTooth Laser cutter and Engraver can be built in a weekend. Take a look at the build instructions and try to determine if you feel you have sufficient capability to put together the laser system.

    Click the link to respond:
    How long does it take to build the blackTooth Laser Cutter?

  • how long would it take to build the blacktooth laser cutter?

    The blackTooth Laser cutter and Engraver can be built in a weekend. Take a look at the build instructions and try to determine if you feel you have sufficient capability to put together the laser system.

    Click the link to respond:
    how long would it take to build the blacktooth laser cutter?

  • Please could you show more example pics of the quality of engraving the Blacktooth is capable of?

    Please check our gallery section for examples and also check out blackTooth laser on youtube to see a lot more examples.

    Click the link to respond:
    Please could you show more example pics of the quality of engraving the Blacktooth is capable of?

  • I believe I understand USB v Parallel BoB on the Blacktooth but what is "integrated computer" mean?

    Integrated computer for our blackFoot means, that the computer components will be included with that kit. Meaning that a motherboard(mini itx) with a on-board processor, RAM, HDD and power supply is sent.
    So the blackTooth will be a all in one kit, excluding any software with the price.

    Click the link to respond:
    I believe I understand USB v Parallel BoB on the Blacktooth but what is "integrated computer" mean?

  • WHAT ARE THE BLACKTOOTH LENS SIZES AND FOCAL LENGTH SPECIFICATIONS?

    The lens is 20mm wide and a 50.6mm focal length (the one included). This lens will stand up to at least 30PSI air assist.

    The mirrors are 25mm wide mirrors.

    Focal length is the distance from the lens to the material for the laser converge into the best focal point. If a lens is listed as 2". You measure 2" from the lens to the material, this will be the tightest point the laser can go before it starts to re-expand again losing focus.

    Click the link to respond:
    WHAT ARE THE BLACKTOOTH LENS SIZES AND FOCAL LENGTH SPECIFICATIONS?

  • HOW CAN ENHANCE THE BLACKTOOTH?

    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.

    Click the link to respond:
    HOW CAN ENHANCE THE BLACKTOOTH?

  • Do you have instructions how to mount the AWC708 DSP on the blackTooth?

    We are working on getting these on the blackTooth page


    Additional Information:
    Ok, thanks. Do you use a separate 24V P/S for the supply voltage on the AWC708C or tap into the stepper motor P/S?

    Click the link to respond:
    Do you have instructions how to mount the AWC708 DSP on the blackTooth?

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