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Question #: 13561

Question: What is the max thickness of material that the 80W laser can cut in plywood?

Current Solution

An 80 watt laser can cut plywood up to 1/2 inch thick. Make sure to use a high pressure source of air to knock out all of the charring during the cutting process so the laser can work efficiently.

Additional Information:
I have a Chinese 80W laser. Just finished a cut test with 1/2" plywood. It cut through at 95% power 7-4mm/s with significant charring after two passes with no refocusing done between passes.

Additional Information:
That's great information. What is your PSI of the air assist on your laser? What focal lens distance do you have? And where did you place the focus of the lens (at the surface, or within the material)?

Respond:

Other Possible Solutions to this Question

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    A standard 40W CO2 laser will cut up to 1/4" thick of material, be it wood, acrylic, card stock, leather, fabric, foam, cork, etc. (Decent speed and final cut are heavily dependent on a strong air assist upgrade)

    Metals cannot be cut due to the power level and wavelength of the CO2 laser. But it can be marked with special solutions like Cermark or Thermark.

    Click the link to respond:
    WHAT THICKNESS OF MATERIAL CAN THE BLACKTOOTH LASER CUT?

  • What is the largest thickness of material that the BlackTooth can accomodate

    A standard 40W CO2 laser will cut up to 1/4" thick of material, be it wood, acrylic, card stock, leather, fabric, foam, cork, etc. (Decent speed and final cut are heavily dependent on a strong air assist upgrade)

    Metals cannot be cut due to the power level and wavelength of the CO2 laser. But it can be marked with special solutions like Cermark or Thermark.

    Click the link to respond:
    What is the largest thickness of material that the BlackTooth can accomodate

  • What is the Max thickness of wood that can be placed in the 4x8 cnc milling machine?

    Tricky question. That depends on the way the table is built. If the table is built with a step down area, you can put as thick a material as you want. If the table is flat, the clearance is 6 inches. Now, the thickness depends on the size end mill you insert into the collet. If you use an end mill that has a 2 inch cutting length, then your material thickness is 4 inches without a spoilboard. If you need to mill thick material, I would suggest that you fashion the table accordingly so the table can accomodate any thickness you desire. That's one of the great aspects of the buildyourcnc machines, adaptability.

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    What is the Max thickness of wood that can be placed in the 4x8 cnc milling machine?

  • I am looking at buying the blacktooth-laser-cutter-engraver-40w. Can you give me some idea of the types and thickness of material this machine will cut and/or ingrave?

    Considering that "materials being lased by may emit gasses that are harmful to humans (corrode human tissue and cause damage to respiratory organs). Always read the MSDS (Material Safety Data Sheet) for the material to be lased. You can find these MSDS from manufacturer websites for the material you are considering for use in the laser system."
    We successfully have worked on Thin sheets of Brasswood, glass, foam, plexi-glass. The thickest materials you will be able to successfully cut is 1/4".

    Click the link to respond:
    I am looking at buying the blacktooth-laser-cutter-engraver-40w. Can you give me some idea of the types and thickness of material this machine will cut and/or ingrave?

  • I'm considering the purchase of your Blacktooth laser. I will be engraving on my wood blocks that are two inches in thickness. Will the Blacktooth accomodate this thickness material?

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    Click the link to respond:
    I'm considering the purchase of your Blacktooth laser. I will be engraving on my wood blocks that are two inches in thickness. Will the Blacktooth accomodate this thickness material?

  • What metal sheets can I cut with the 80W laser? What thickness, alumium, steel? What about the 100 or 130W upgrades?

    Cutting metals with a CO2 laser is nearly impossible with just the laser by itself, no matter what the power. The wavelength that a CO2 laser outputs is not best for cutting metals.

    However, if you add oxygen as a cutting assist in the cutting process, metals can be cut, but we do not advise this as it is very dangerous.

    Click the link to respond:
    What metal sheets can I cut with the 80W laser? What thickness, alumium, steel? What about the 100 or 130W upgrades?

  • WHAT MATERIALS CAN THE GREENBULL MACHINE CUT? LASER ETCH?

    The Greenbull machine can cut a very wide variety of materials ranging from foam to aluminum. We recommend the use of our 2.2kW spindle to allow the greatest flexibility. Aside from that, the most important thing is to use an appropriate end mill for the material you are cutting and to use appropriate speeds and feed rates.



    BYCNC Response:
    Our 40W laser can cut up to about 1/4" materials ranging from wood and acrylic down through lighter materials such as leather, fabric, foam, etc. Speed and final cut are greatly enhanced by an air assist upgrade. We also offer an 80W laser which has approximately twice the capabilities of the 40W.

    Click the link to respond:
    WHAT MATERIALS CAN THE GREENBULL MACHINE CUT? LASER ETCH?

  • What materials can the Greenbull machine cut? What materials can the laser cut? Can the laser etch?

    The Greenbull machine can cut a very wide variety of materials ranging from foam to aluminum. We recommend the use of our 2.2kW spindle to allow the greatest flexibility. Aside from that, the most important thing is to use an appropriate end mill for the material you are cutting and to use appropriate speeds and feed rates.



    BYCNC Response:
    Our 40W laser can cut up to about 1/4" materials ranging from wood and acrylic down through lighter materials such as leather, fabric, foam, etc. Speed and final cut are greatly enhanced by an air assist upgrade. We also offer an 80W laser which has approximately twice the capabilities of the 40W.

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    What materials can the Greenbull machine cut? What materials can the laser cut? Can the laser etch?

  • What is the bill of materials included in the build your own laser 2' x 4' 40 watt

    The general bill of materials for the blackTooth 24"x20" laser system is as follows:

    - The structural components (MDO and Plastic parts)
    - The hardware to assemble all of the structural and mechanical parts
    - Mechanical parts like v-groove bearings, bearings for shafts, shafts, pulleys, belts, etc.
    - All of the motion electronics like motors, drivers, and laser controller
    - Wire to connect all of the electronics
    - All of the laser components including the laser tube, mirrors, mirror mounts, nozzle and lens
    - Pneumatic components including the air pump and tubing
    - Hydraulic components to cool the laser tube including a water pump and tubing

    blackTooth 24"x20" Laser

    Click the link to respond:
    What is the bill of materials included in the build your own laser 2' x 4' 40 watt

  • am interested in purchasing the 80 Watt Vertical Laser XL 4'x8' Laser Cutter and Engraver, what material depth can it cut?

    The Vertical Laser XL's 80 watt CO2 laser tube is capable of cutting lighter material such as wood and plastic at up to 1/2" or 12mm.

    Click the link to respond:
    am interested in purchasing the 80 Watt Vertical Laser XL 4'x8' Laser Cutter and Engraver, what material depth can it cut?

  • What materials can the laser cut?

    Our 40W laser can cut up to about 1/4" materials ranging from wood and acrylic down through lighter materials such as leather, fabric, foam, etc. Speed and final cut are greatly enhanced by an air assist upgrade. We also offer an 80W laser which has approximately twice the capabilities of the 40W.

    Click the link to respond:
    What materials can the laser cut?

  • What are the acceptable materials that I can cut?

    The machines on this site can cut a wide variety of materials. If there is an end mill (cutting bit) that is available on the market, the machine can cut it. The thickness is only limited by the end mill length. This is possible with these CNC machines and other machines on the market because the machines can be controlled in such a way that the material can be cut using depth per pass, feed rate, and spindle RPM.

    Click the link to respond:
    What are the acceptable materials that I can cut?

  • How thick can the Greenbull cut and what kind of material? Wood, plastic, steel? I was also wondering if there is one anywhere in Nevada, Idaho or Utah that I could possibly see in action. Thanks

    The greenBull CNC machine kit can cut as thick as a material as you desire depending on the reach of the end mill that you provide the machine, if it is a straight vertical. The reason for this is that each pass is incremental (multiple passes at a certain depth per pass). For instance, if you need to cut a 2 inch thick piece of wood, you can make, say 3/4" passes until the target depth of 2 inches is met.

    The depth per pass, feedrate and RPM will be determined by the material: wood, plastic, metal and will also be determined by the end mill that is used for that material. Selecting the appropriate end mill is very important. Feedrate and RPM is important to make sure the end mill is as cool as it can be during the cutting process.

    Click the link to respond:
    How thick can the Greenbull cut and what kind of material? Wood, plastic, steel? I was also wondering if there is one anywhere in Nevada, Idaho or Utah that I could possibly see in action. Thanks

  • How small of end mills are commonly used for cutting balsa? What thickness of balsa can these smaller mills handle?

    The size of end mills can vary to extremely tiny to very large cutting diameters. The smaller the cutting diameters, the shorter the available cutting length due to the possibility of breakage. You will first need to determine the thickness, or depth you will need to cut and find the available cut diameters for that depth.

    To cut balsa wood, almost any standard 1 to 4 flute end mill will be fine that are intended to be used with wood. The end mill will state the materials that it can cut. Wood end mills will exhibit a flute geometry that is more stretched out to straight.

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    How small of end mills are commonly used for cutting balsa? What thickness of balsa can these smaller mills handle?

  • Can a CO2 CNC laser machine be used for welding of thermoplastic materials?

    That is a good question. We have not tried to weld thermoplastics using our CO2 Lasers. It is possible since the laser outputs a heat source and at the right intensity and speed, the thermoplastic can be heated and melted rather than instantaneously vaporized and off gassed. I have done research to see if CO2 laser can weld thermoplastics with positive results.

    Our CO2 lasers are typical of other laser cutters on the market, so if their literature, or examples you have found, successfully weld thermoplastics, then ours will probably be able to as well.

    In some cutting test with different speeds and intensities, the kerf has welded back together; however, this was caused by an unintentional process rather than an intentional one.

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    Can a CO2 CNC laser machine be used for welding of thermoplastic materials?

  • I have been using a Blacktooth for some time, with Vectric2d and Mach3. I have always found that the laser burns a hole before moving off. I have always set material thickness at actual value. Should it be set very low? Also, of the many post processors supplied with 2d, which is best for Blacktooth?

    If you have the laser firing using the Z direction, then you want to make sure that the thickness and clearance plane is extremely small. The time it takes for the software to think that the z axis has lowered to the depth set in the design is causing the laser to stay on in a single position for too long. Make sure that the depth is extremely small, like .0001" or the smallest amount allowed by the Vectric software. Also, make sure the clearance plane (the height that the z axis would raise to clear any protrusions like clamps and the such) is extremely low.

    Click the link to respond:
    I have been using a Blacktooth for some time, with Vectric2d and Mach3. I have always found that the laser burns a hole before moving off. I have always set material thickness at actual value. Should it be set very low? Also, of the many post processors supplied with 2d, which is best for Blacktooth?

  • I am loking for a kit that can cut 4x8 material and would be ready to cut when assembled. plus what computer and software are needed to be ready to cut?

    The greenLean machine comes with the entire structure and features a 4'x8' cutting area. You will still need some hookup wire to connect the electronics and silicone tubing for the water to and from the spindle.

    greenLean Machine: https://buildyourcnc.com/item/cnc-machine-greenLean-v1

    Thanks for answering my last question. So I have two follow-up questions from the response. The green leaf stands vertical is it designed for the material to be cut without falling free once it is cut through? And second question: you metioned water running to the spindle is this a cooling system for the spindle?

    You would use holding tabs to keep the parts from falling out of the cut areas. Holding tabs are generated as part of the CAM file. Yes, this is the way the spindle is cooled. This is far superior to air cooling. Air cooling will blow the chips all over the shop.

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    I am loking for a kit that can cut 4x8 material and would be ready to cut when assembled. plus what computer and software are needed to be ready to cut?

  • is IT OK TO USE THICKER PLYWOOD (MATERIAL) to BUILD THE CNC MACHINE, BLACKFOOT, BLACKTOE?

    Yes, it is ok if the thickness is plus or minus +/- about 2mm.

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    is IT OK TO USE THICKER PLYWOOD (MATERIAL) to BUILD THE CNC MACHINE, BLACKFOOT, BLACKTOE?

  • what is the thickest plywood you can cut with the lazer

    Our blackTooth laser cutter and engraver, will cut up too 1/4" wood, and acrylic. This will be the norm with our machine.
    Trying to cut a thicker material is possible but will need certain adjustments, ex. lowering the laser nozzle/focal point as the cut is made, lower and lower till the complete cut is made. We however do not recommend doing this with our machine!

    Click the link to respond:
    what is the thickest plywood you can cut with the lazer