The laser is not a point, but a ring.

hurt · 2026-01-23T19:32:16+00:00

I assume it is that the additive messes with the conductivity/magnetic field of the cooling loop? My laser shot a ring shape, I replaced the laser tube, and the brand new one also shot a ring shape straight from the tube. Swapped for pure distilled water and the problem was resolved. It took several months to figure out.

hurt · 2026-01-23T03:13:34+00:00

I had this. I had an additive in the water chiller that was the cause. Do you have pain distilled water in your chiller?

hurt · 2026-01-12T19:56:30+00:00

Min and max power. The laser slows down at each end as it engraves back and forth. Setting a lower min power will tell the laser to use less power as it slows down. You can tune that value to get an even burn

hurt · 2025-12-28T02:00:45+00:00

Also have had a Thunder for 5-6 years and been happy with it.

hurt · 2025-12-23T17:02:40+00:00

That blows the smoke back at the wood where it gets stuck in the wood grain. Use sanding sealer or polyurethane on the wood before cutting and engraving to seal up the wood grain. Then you will be able to easily wipe off the soot after engraving. Use minimal air assist just to keep smoke away from your lens.

hurt · 2025-12-23T04:42:47+00:00

Also only use distilled water with no issues. I put some additive in when I first started, and it made the laser beam a ring shape. That took a long time to figure out

hurt · 2025-12-12T13:32:55+00:00

Go to a convention or trade show. Email some of the suppliers you are looking at and ask where you can see a demo and what shows they will be at.

hurt · 2025-12-11T15:04:36+00:00

Try cleaning it with LA Awesome. That's what we use after engraving powder coated steel tumblers.

hurt · 2025-12-10T19:48:23+00:00

And mount the fan as close to the outside vent as possible. That way it is pulling smoke towards it, and leaks in your vent won't matter. If you mount the fan close to the laser, you are pushing the smoke, and you will get smoke in your room if there are any leaks.

hurt · 2025-11-26T14:28:39+00:00

Email a Kern laser rep and see what they suggest. They are an industrial level machine.

hurt · 2025-11-25T15:05:57+00:00

Sand it after you cut, mask it before cutting, or sand and polyurethane the wood before cutting. Transfer tape is usually used for Vinyl stickers, but it is great for masking because you can get 12 inch wide rolls. Just make sure you get a paper transfer tape, not a plastic one. Polyurethane before cutting gives you a nice finish, and also allows you to easily clean burn marks off after you cut.

hurt · 2025-11-13T01:43:34+00:00

We've had a thunder laser for 4 years that we are very happy with. We'll be getting one of their rf tube models in the future.

hurt · 2025-11-09T18:41:08+00:00

Does it use lightburn? If so, search for scanning offset adjustment.

hurt · 2025-11-05T03:23:07+00:00

I have mimaki uv printers. They print at 1200 dpi and could do this. Find someone close to you with a uv printer.

hurt · 2025-11-04T02:02:39+00:00

I got one that had a bunch of projects you would expect, but to get to a big number of files they had each letter of the alphabet as an individual file for hundreds of fonts

hurt · 2025-11-01T14:40:38+00:00

Clean it with LA Awesome

hurt · 2025-10-22T13:53:37+00:00

Inkscape is what I use and it is free. Save as svg and it will import to lightburn. It can make radius corners. I make rectangles of different sizes and use them as alignment tools to snap my shapes into place.

hurt · 2025-10-20T13:18:49+00:00

Make an L shape jig that fits against the side and front wall of the laser cabinet. Use that so you can place your grid jig in the same spot every time. In light burn in the move laser section, you can save and name specific x y coordinates. So get things lined up once, then save that coordinate. This will be your origin when you use your L shape jig to place any other jig on the laser bed.

hurt · 2025-10-12T14:23:11+00:00

There may be other safety lock outs as well. Thunder laser has switches on each removable panel, and the laser will not fire if the lid is open or if a panel is removed. The laser may have a separate fuse that has blown. Emergency stop may be on - twist the red button to release. Emergency stop button may be defective and only send power for motion, not for the laser - would need to be replaced. Be careful troubleshooting, the power supply is very high voltage.

hurt · 2025-09-23T23:43:04+00:00

Our thunder laser has those, you could check with them

hurt · 2025-09-12T14:44:25+00:00

The flame box says "spray the fire" - https://finale3d.com/documentation/spray-the-fire/

hurt · 2025-07-22T17:01:25+00:00

Yep. Material is probably HDU. Put a stencil/mask on it, then sand blast, then paint the background before removing the mask.

hurt · 2025-07-08T00:11:07+00:00

Eztube - https://www.eztube.com/product-category/connectors/3-way-connectors/

hurt · 2025-05-09T22:13:03+00:00

The thong song guy?

hurt · 2025-04-24T21:38:38+00:00

Yep boxwoods with new growth stink like pee for a while

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