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Type: Posts; User: grawley

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  1. Replies
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    Re: Thin wall parts to laser cut

    The material Delrin is used for its dimensional stability. It is a polymer material. I have seen a number of laser shops make parts from it.

    "Polyoxymethylene (POM), more commonly known as acetal...
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    Re: software for trotec 8003 c25 sp0895

    I have many customers with this older Trotec model, so can ask them for you. I also upgraded two of the 8003 c25 model, from the Synrad 25 watt laser to a Universal Laser 50 watts, besides gas...
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    Re: 100w problem cutting with dots!

    A few observations and suggestions using your photo:

    1. Red circles show sticky fumes that cast back down onto the workpiece. This can be caused by a change in the location of the laser beam in...
  4. Re: GWeike LC1612 - Electrical Confusion & Nonsense North America

    For the blower, take a look at the manufacturer's engraved label and confirm that the motor operates at 60Hz, and perhaps also at your AC voltage, and also its wattage as it likely requires more...
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    Re: 100w problem cutting with dots!

    It seems like the long, slow arc did not display the jagged line segment problem. As you already examined the settings, why not check for: (1) Loose belts, in either direction; (2) A wobbling...
  6. Re: Varying cutting speed on straight lines and curves

    Wow, quite a set of issues on this thread!

    Taking it backwards, here's a stab at several of them:

    - For servo motors groaning, they may need to have the parameters tuned for the servo...
  7. Re: 150 w RECI LASER TUBE burns a circle not a dot

    https://www.cnczone.com/forums/attachment.php?attachmentid=470096&stc=1

    I contacted RECI on this 150 watt tube's burn and their response was that the gas was consumed and that a replacement tube...
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    Re: Looking for the correct mask

    When working with materials for laser cutting and engraving, it is prudent to know there are any risks caused by the process. So, first thing to do is to identify the material (either by its...
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    Re: Reduced power, mirrors?

    eBay has mirrors available, as do many online stores. If you want to confirm that the mirror is the problem (because other mirrors may also be bad), you can run a test. You could set the laser to...
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    Re: Laser cutting in 12mm bamboo gets burned

    If you use a small orifice nozzle with high pressure compressed air (30 psi), then you will get much better results--less burn-back, higher cut speed, reduced side-wall...
  11. Re: Using the chinese 40w co2 machine (k40) for cutting webbing?

    You need to control the air assist and the laser power accurately, so adding a nozzle system and pressure regulator with air dryer bulb is needed. I have cutting webbing many times, and if you want...
  12. Re: Problem. Losing power (strenght) when set to more than 60% power.

    https://www.cnczone.com/forums/attachment.php?attachmentid=452092&stc=1

    If you do a raw beam laser burn into clear plastic (prior to a mirror), then if the shape (mode) of the beam is bad (not a...
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    Re: Laser alignment problems

    Even though you covered some of these steps, here is a procedure that I recently used on a 1500 x 1200 machine:


    The key here is the preparation, prior to mirror adjustment. In other words, most...
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    Re: PLEASE HELP IF YOU CAN!!!!! Leetro MPC6525

    Here is the documentation, in the product description on this link:
    ...
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    Re: Upgrading an aging machine

    With the rock solid chassis and good motors on your machine, it is better to upgrade because most of the "affordable" machines out there are much lighter weight and less accurate. So, the key for...
  16. Thread: Epilog Mini 24

    by grawley
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    350

    Re: Epilog Mini 24

    The 30 watt metal tube lasers, installed in Epilog machines, generally cut about the same as your 50 watt, in my experience. In other words, a glass tube laser using high voltage and rated for 50...
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    Re: Laser Rust Remover / Laser Cleaner

    Yes, you can use a small fiber laser marker to do laser cleaning. I did a job where I removed titanium oxide from metal batteries to be used within a medical device, with a 10 watt fiber laser...
  18. Re: Chinese laser is firing anytime the head moves. "Help"

    Suggested approach to isolating where the problem is:

    1. Power off the machine and unplug from the wall outlet
    2. Inspect the high voltage laser power supply, reseat the electronics cable while...
  19. Re: Beam splitting after extensive alignment check

    By far, the number one reason for lost profit, machine downtime, shoddy laser cutting/engraving, ruined materials, head scratching beside the laser machine, is CO2 laser beam alignment problems. The...
  20. Re: Beam splitting after extensive alignment check

    It may not be visible. I had a customer in Brooklyn with a high power laser and nothing was visible on the lens, but changing the lens solved the problem.
  21. Re: Beam splitting after extensive alignment check

    A common method to check how well the laser beam is aligned to the final mirror is move the focus assembly to one side of the laser machine then apply masking tape then momentarily power on the laser...
  22. Re: Beam splitting after extensive alignment check

    Since you have done the standard checking and alignment, you can progress to other checking, for example:
    - Prior to the first mirror, perform a mode burn into acrylic to see the unfocused laser...
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    Re: Need help with crazy build PLEASE!

    Ask Jorlink--they will know the answer as they stock these parts and do support.
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    Re: HELP ME ABOUT MPC03-LT CARD.

    Attach the contents of your sysconfig.ini then we can debug it. The problem is likely the one stated earlier, that a motor encoder count is mismatched between the X and Y axis, so it is easy to read...
  25. Re: Laser engraving using AMADA ENSIS 3015 - how to cut deeper?

    In looking at your pictures, it looks like the depth is achieved, however, as you pointed out the D and I perimeter do not have the depth evenly reduced. My guess is that this is a software issue,...
  26. Thread: Laser Advice

    by grawley
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    Re: Laser Advice

    https://www.cnczone.com/forums/attachment.php?attachmentid=446908&stc=1 https://www.cnczone.com/forums/attachment.php?attachmentid=446910&stc=1
    I recommend a different approach, rather than trust...
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    Re: Tips for cutting silicone rubber sheets?

    https://www.cnczone.com/forums/attachment.php?attachmentid=441660&stc=1


    We need to thank Universal Laser Systems for taking the time to put together this informative graphic that provides vital...
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    Re: Tips for cutting silicone rubber sheets?

    Yes, the delay is available on that model. I own that model and run the same software, and set it up for many customers on their Weike machines, using the same version of the software. It can also...
  29. Re: Laser cutter producing dotted line cuts edges are very rough even when cut comple

    To determine if the problem is the laser turning off and on, do the following: Stand in the back of the machine while the job is running, and look at the laser tube, to see if it illuminates on and...
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    Re: Tips for cutting silicone rubber sheets?

    https://www.cnczone.com/forums/attachment.php?attachmentid=441648&stc=1https://www.cnczone.com/forums/attachment.php?attachmentid=441650&stc=1https://www.cnczone.com/forums/attachment.php?attachmentid...
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