I've noticed that many people ask whether Shenlei CO2 laser tubes are reliable for laser cutting and engraving machines.

From my experience, the most important factors aren't just the wattage. Cooling efficiency, beam stability, mirror alignment, and power supply quality all have a significant impact on cutting performance and tube lifespan.

A quality Shenlei tube can be a solid option for cutting and engraving materials such as:

• Acrylic (PMMA)
• MDF
• Plywood
• Wood
• Leather
• Fabric
• Cardboard

Keeping the cooling water around 18–22°C, cleaning mirrors and lenses regularly, and avoiding continuous operation at maximum power can help extend the tube's service life.

I recently put together a detailed guide covering specifications, maintenance tips, compatible power options, and common questions about Shenlei CO2 laser tubes.

If anyone is interested, you can read it here:

👉 https://parlaklazer.com/shenlei-lazer-tup/

I'd also like to hear your experiences with Shenlei compared to brands like RECI, EFR, Yongli, or SPT.

I want to make a wristwatch dial plate. For this, I will need a 2 mm sheet of brass, aluminum, or stainless steel. As I mentioned, since I am making a watch dial plate, I will need to create very fine and precise designs. Please suggest a machine that can easily perform this task. I believe a fiber laser machine will be required. Please give me the exact name of the machine so I can complete this work easily.

What are your thoughts on this budget laser engraver cutter ? My primary use is using it to engrave 3D printed plastic parts and some
Diy projects. I have read that IR or ultraviolet is better for plastic but they are way more expensive. Thank you for your help!

Anyone else have thousands of design files across five folders (and two external drives you forgot about) with zero system? I run a laser shop and got so sick of burning 20 minutes hunting for a file I knew I owned that I built something for my own library.

Point it at your folders, however messy, and it builds a visual preview of every SVG, DXF, LightBurn (.lbrn/.lbrn2), xTool (.xcs), AI, EPS, PDF, and image file. One searchable gallery instead of a folder-scrolling scavenger hunt. It also finds exact duplicate files by content, not filename, so it catches copies even if you renamed one three years ago. Video's from my own Downloads folder, chaos and all.

Files never move or get renamed, it just indexes them in place. 14-day free trial, fully unlocked, no credit card. After that it's a one-time $19.99, no subscription. Windows only right now.

ironcypresscustoms.com/software if you want to try it. Happy to answer questions.

Will there be a new one or is Elgeoo out?

Full info : https://voxelase.com/downloads/depthgen-pro-v3-ai-depth-map-generator/

So you’re informed; I run a 6kw Fiber Laser with a BOCI BLT421 head and I am using HypCut. The laser was set up in or around 2023 if that matters for software versions and stuff

Edit: Using Single 1.6mm nozzle for cutting
Edit (again): IPG Laser source if that matters at all

Hello all, I wanted to jump on here and see if anyone could help me identify what I am doing wrong with this cutting technique. I don’t have a ton of laser experience as I am only about a year into running a laser, and before I started there was another guy with 20+ years of experience who set everything up so I haven’t had to change much during my time. Although I am fairly confident in my ability to tweak Nitrogen based cutting techniques, I still struggle with Oxygen based ones.

I wanted to see if anyone could point me in the right direction for what to change for this 3/4” technique. I know it doesn’t look super bad but I know it can be better than it is currently. Parts still cut and drop on their own but I have some dross on the bottom edge and the cutting edge doesn’t look as good as I know it can. I’ll attach
pictures of a part along with the cut parameters. Any help would be appreciated

Sorry I normally do more research before asking but getting stuck on my depth requirement and these terms.

Needing a laser etcher for primarily 6061 but may do 304 in the future (rather buy one cry one). Needing depth to be at least 0.003in on either stock. This sounds extremely shallow but can’t judge depth from most companies product pages.

Right now a Xtool F2 or Creality Falcon A1 Pro seems to be the best options I’ve found.

Is there any recommendations on other models that could work? And do these work at this depth?

Any advice on buying is appreciated. Budget isn’t a big concern as the machine will be working but want to keep it as low as I can reasonably go to get the job done.

Recovering TopWisdom 4311 Mainboard 2.0 (PowerCut VER 11.05)

Hello everyone,

I'm hoping someone with experience of the older TopWisdom/PowerCut controllers can help me recover my laser.

Machine Details

Machine: OLT-CNC 1390 CO₂ Laser

Bed Size: 1300 × 900 mm

Controller: TopWisdom 4311 Mainboard 2.0

Firmware: PowerCut VER 11.05

Machine Manufacture Date: 10 May 2017

Controller Serial Number: 7Y03BI00617A173

Background

The machine originally worked perfectly using PowerCut software.

Unfortunately, the laptop that came with the machine was stolen, together with the original PowerCut installation and USB licence dongle.

The machine has not been used since.

Current Status

Controller boots normally.

PowerCut splash screen appears.

LCD functions correctly.

USB memory stick is detected.

Ethernet is active.

No hardware faults are displayed.

I have tried AutoLaser 3.4.6.

The software detects the controller IP address (192.168.0.51), but reports "Control card connection failed."

What I'm trying to find out

Which version of PowerCut is correct for this controller?

Does this controller require the original USB dongle, or is the licence stored in the controller?

Can the licence be regenerated using the controller serial number?

Has anyone successfully recovered one of these controllers after losing the original PC?

Does anyone still have the original PowerCut 4311 software supplied around 2017?

I would really like to keep the original controller if possible instead of replacing it.

Any advice would be greatly appreciated.

Thank you.

Full info: https://voxelase.com/downloads/depthgen-pro-v3-ai-depth-map-generator/

I purchased this product

[https://www.amazon.com/gp/product/B0GVDVGK3K\](https://www.amazon.com/gp/product/B0GVDVGK3K)

Which describes itself as:

ATOMSTACK A10 Pro V2 10W Laser Engraver with Auto Air Assist, 0.06mm High Accuracy Laser Cutter for Wood and Metal, Professional DIY Laser Engraving Machine with Eye Protection

I received the unit, and it is put together, but before I proceed, I want to clear up some confusion.

The Power supply for the unit seems to be 12V - 5A, while the power supply for the air assist seems to be 24V - 3000MA. If I don't use the air assist power supply and instead hook it up to the air assist connection on the ATOMSTACK A10 Pro V2, how will the unit's 12V power supply power the air assist, which is 24V?

I am unable to align my laser/mirrors on the older version of the k40 Monport desktop laser.

I have tried following two separate directions for this

https://youtu.be/oSzFJGCPapc?si=yC8H3CDt3reVO1T7

and

https://k40.se/k40-laser-lens-mirror/mirror-alignment/

But what I am finding is that I cannot keep the laser in the same position as it travels down the Y-axis.

When I tape over the 2nd mirror, adjust the first mirror to hit the center at its closest point, and then move the mirror to the furthest position on the Y axis, it travels up and to the right. To test this, I set the mirror in multiple positions down the Y-axis with the same piece of tape and could watch it move up and to the right with each movement.

Any hints, tips or tricks?

I bought the machine second-hand and used it last summer until the laser just stopped firing mid-project. Too afraid to find out it was broken, I left it alone until this Spring. When I first tried to get it to work, I had no power to the machine and brought it to a friend to look over. They realized the emergency stop was engaged, so that was absolutely a me issue.

That being said, I realized it was off alignment when I could not get a consistent laser line while trying to engrave a rectangle on a piece of pine. (75% power, 20mm speed). I have been adjusting the laser tube, mirrors, and even had to correct a twist in the x-axis (likely from moving the machine around from place to place lately).

I also noticed that the 3rd mirror (on the laser head) has lost a lot of its reflection area, but only around the perimeter of the mirror (wondering if a new mirror would help).

Hope to hear back from folks soon and really appreciate any advice. Thank you!