Laser Engraver Experiences

Topics related to laser engravers and laser cutters.
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cstroke
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Re: Laser Engravers...

Post by cstroke » Sat Dec 03, 2022 10:15 am

Interesting stuff when you keep going down the rabbit hole LOL...

I had to re read this entire thread to make sure my next question wasn't answered already..
When they spec a size out as far as working area, they are just saying which lens is included and that would be for column heights if it was the super tall one??
Thanks in advance
Chris
6’x12’ Dynatorch with a powermax 85
12’ Wysong brake
5’x 5/16’ wysong rolls
3.8’x10’ Pearson shear
65 Ton Edwards ironworks
Boss laser 3655 150 watt CO2.
Quicncy compressor
Misc welding machines

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rdj357
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Re: Laser Engravers...

Post by rdj357 » Sat Dec 03, 2022 11:14 am

Haha YES it certainly is!!

They (the industry) does use the 'working area' size to classify the lens. Technically it is a focal distance and at that focal distance, the lens has a working area of that which is provided. For larger work areas the tower/column for Z has to be taller because of the longer focal distance lengths. I have a tall Z tower because I have and use a 300mmx300mm lens but also have a 150mmx150mm so I can run it down until that lens is in focus for what I'm working on. For instance, my 300x300 lens is in focus when the head centerline height is about 24". So if I am engraving a tumbler on a jig as I showed in an earlier post with video, the material surface where I'm marking may be 4-5" above the bed so I have to have a tower tall enough to set the head at ~30" above the bed. That's why, if you specify you want a larger lens when you order a machine, you will be told you need a taller Z tower or a spacer to raise it up.

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cstroke
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Re: Laser Engravers...

Post by cstroke » Sat Dec 03, 2022 12:07 pm

So you'd probably always be better off to spec a larger lens since you can always change to smaller lenses and move it down rather than having to order another tower at a later date.
6’x12’ Dynatorch with a powermax 85
12’ Wysong brake
5’x 5/16’ wysong rolls
3.8’x10’ Pearson shear
65 Ton Edwards ironworks
Boss laser 3655 150 watt CO2.
Quicncy compressor
Misc welding machines

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rdj357
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Re: Laser Engravers...

Post by rdj357 » Sat Dec 03, 2022 4:54 pm

cstroke wrote:
Sat Dec 03, 2022 12:07 pm
So you'd probably always be better off to spec a larger lens since you can always change to smaller lenses and move it down rather than having to order another tower at a later date.
Exactly - or at least get a taller Z tower and/or a spacer to have on hand. Like many things in life, it can be too short/small but not the other way around!

With a larger lens you won't have as much - we'll call it "effective" power. This is because the spot size will be considerably larger so the power is spread out over more area, thus less concentration of intensity and less ability to damage material. So it's always good to have a selection of lenses to do different work. We use the 150mm lens for direct metal engraving and the 300mm lens for leatherette and anodized aluminum engraving for example.

This site has some pictures of the relationship between field size, focal distance, spot size, etc. https://www.thorlabs.com/newgrouppage9. ... up_id=6430

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cstroke
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Re: Laser Engravers...

Post by cstroke » Tue Dec 06, 2022 4:06 pm

Closer...
Ive shifted away from the Cloudray, sort of sounds like they are having a few issues with quality control..
Thinking of the one below, 80 watt or 100 watt. with the 300mm for the height and pick up a few smaller lenses.
Any down sides that you know of with a bigger wattage laser other than the price??

https://www.sfxlaser.com/US-Stock-Split ... ng-Machine
Thanks in advance
Chris
6’x12’ Dynatorch with a powermax 85
12’ Wysong brake
5’x 5/16’ wysong rolls
3.8’x10’ Pearson shear
65 Ton Edwards ironworks
Boss laser 3655 150 watt CO2.
Quicncy compressor
Misc welding machines

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cstroke
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Re: Laser Engravers...

Post by cstroke » Tue Dec 27, 2022 11:06 am

Welp... I pulled the trigger on a 100 watt MOPA.. so now we wait..
6’x12’ Dynatorch with a powermax 85
12’ Wysong brake
5’x 5/16’ wysong rolls
3.8’x10’ Pearson shear
65 Ton Edwards ironworks
Boss laser 3655 150 watt CO2.
Quicncy compressor
Misc welding machines

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Joe Jones
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Re: Laser Engravers...

Post by Joe Jones » Tue Dec 27, 2022 12:33 pm

cstroke wrote:
Tue Dec 27, 2022 11:06 am
Welp... I pulled the trigger on a 100 watt MOPA.. so now we wait..
We gaze upon you in awe, as you strut by, wearing your tailored leather jacket and designer shades.

Joe
Franklin, KY., USA
Samson 510
DH2 4x4
X-Tool D1 PRO 20 Watt Laser
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CreatBot D600 PRO 3D Printer
FREE DesignEdge Online Training!

It is more fun when it isn't necessary!

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Re: Laser Engravers...

Post by rdj357 » Wed Dec 28, 2022 8:58 am

cstroke wrote:
Tue Dec 27, 2022 11:06 am
Welp... I pulled the trigger on a 100 watt MOPA.. so now we wait..
Sweet, I'm in the final stages of ordering a 60w Galvo CO2. Happy New Year! lol

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cstroke
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Re: Laser Engraver Experiences

Post by cstroke » Mon Jan 02, 2023 11:40 am

Good grief these things come quickly.. Mines in Kentucky already.
I'm not looking forward to the learning curve... UGHHH..
I'm anxious to see your galvo Co2 stuff..
Joe are you doing any work with your fiber??
6’x12’ Dynatorch with a powermax 85
12’ Wysong brake
5’x 5/16’ wysong rolls
3.8’x10’ Pearson shear
65 Ton Edwards ironworks
Boss laser 3655 150 watt CO2.
Quicncy compressor
Misc welding machines

User avatar
Joe Jones
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Re: Laser Engraver Experiences

Post by Joe Jones » Mon Jan 02, 2023 2:20 pm

cstroke wrote:
Mon Jan 02, 2023 11:40 am
Good grief these things come quickly.. Mines in Kentucky already.
I'm not looking forward to the learning curve... UGHHH..
I'm anxious to see your galvo Co2 stuff..
Joe are you doing any work with your fiber??
I have not yet gone back to the shop to work. I know it is chock full of machines and tools, and the most recently added machines, but I will get out there when the weather warms up a bit, I HOPE. There are other priorities that are demanding my time right now, and even THEY are not getting the attention they deserve.

Joe
Franklin, KY., USA
Samson 510
DH2 4x4
X-Tool D1 PRO 20 Watt Laser
30 Watt Fiber Laser
CreatBot D600 PRO 3D Printer
FREE DesignEdge Online Training!

It is more fun when it isn't necessary!

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acourtjester
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Re: Laser Engraver Experiences

Post by acourtjester » Fri Jan 13, 2023 4:15 pm

Now they are selling a 40 Watt Diode laser ( 8 X 5 Watt)
https://www.xtool.com/products/40w-lase ... _source=ld
DIY 4X4 Plasma/Router Table
Hypertherm PM65 Machine Torch
Drag Knife and Scribe
Miller Mig welder
13" metal lathe
Small Mill
Everlast PowerTig 255 EXT

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Joe Jones
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Re: Laser Engraver Experiences

Post by Joe Jones » Fri Jan 13, 2023 4:38 pm

acourtjester wrote:
Fri Jan 13, 2023 4:15 pm
Now they are selling a 40 Watt Diode laser ( 8 X 5 Watt)
https://www.xtool.com/products/40w-lase ... _source=ld
Yes, I know. I bought two of them. If they work well, great. If not, I will have a 'YUGE sale.

Joe
Franklin, KY., USA
Samson 510
DH2 4x4
X-Tool D1 PRO 20 Watt Laser
30 Watt Fiber Laser
CreatBot D600 PRO 3D Printer
FREE DesignEdge Online Training!

It is more fun when it isn't necessary!

plasmanewbie
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Re: Laser Engraver Experiences

Post by plasmanewbie » Fri Jan 13, 2023 4:50 pm

acourtjester wrote:
Fri Jan 13, 2023 4:15 pm
Now they are selling a 40 Watt Diode laser ( 8 X 5 Watt)
https://www.xtool.com/products/40w-lase ... _source=ld

Thanks Tom, that's awesome, cuts that wood like butter!
Joe Jones wrote:
Fri Jan 13, 2023 4:38 pm
Yes, I know. I bought two of them. If they work well, great. If not, I will have a 'YUGE sale.
Joe
Let us know how those work out for you Joe.

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