breezy
Moderator
Are those cuts straight from machine or have you cleaned them up?
They are amazingly clean.
Fibre Laser
- Thread starter lilow
- Start date
They are amazingly clean.
Straight from the Machine.Are those cuts straight from machine or have you cleaned them up?
They are amazingly clean.
Cheers.
![IMG_3758[1].JPG](https://forums.masso.com.au/data/attachments/12/12682-5809e73d6e26b470e37988575856b242.jpg "IMG_3758[1].JPG")
zombieengineer
ZombieEngineer
Very nice....
What pressure are you using for the compressed air? I remember you posting that the recommended pressure was X bar which was more than regular air compressors could achieve.
Does the air pressure have much impact on cut quality?
What pressure are you using for the compressed air? I remember you posting that the recommended pressure was X bar which was more than regular air compressors could achieve.
Does the air pressure have much impact on cut quality?
@zombieengineer
These cuts were done with Oxygen, will go back and try again with compressed air soon.
I found an article of cutting at 80PSI with air, got to follow it up.
Cheers.
I was thinking today, where has Peter (cncnutz) been, appears he is still around, that's good.
Cheers.
Started cutting the internal structure of the bed today.
Had an issue with the G3 on the final cut in the software.
This didn't allow the the cut to be done.
Was able to around it by running the file until the the last cut, then turn Power on, done.
Got results that came out spot on.
There were two plates cut.
Cheers.
![IMG_3768[1].JPG](https://forums.masso.com.au/data/attachments/12/12686-48d6f3a2ef72dba7a449d6a46d002e19.jpg "IMG_3768[1].JPG")
\
Had an issue with the G3 on the final cut in the software.
This didn't allow the the cut to be done.
Was able to around it by running the file until the the last cut, then turn Power on, done.
Got results that came out spot on.
There were two plates cut.
Cheers.
\Now getting into an area of unknown, raising the bar on the KHz, the power source is capable of 20 KHz, let's try and use it.
Everything I have read is that the nozzle could over heat, this does not happen if the beam is in focus.
Cut various plates at different KHz, will study them in the morning.
Cheers.
![IMG_3772[1].JPG](https://forums.masso.com.au/data/attachments/12/12687-2377f3c11e449edeac8e6a30b4904d16.jpg "IMG_3772[1].JPG")
![IMG_3774[1].JPG](https://forums.masso.com.au/data/attachments/12/12688-b5e6df6cb929cd5a947644c8de240612.jpg "IMG_3774[1].JPG")
![IMG_3775[1].JPG](https://forums.masso.com.au/data/attachments/12/12689-2efda58a72920ac15ec799e8b055c30a.jpg "IMG_3775[1].JPG")
Everything I have read is that the nozzle could over heat, this does not happen if the beam is in focus.
Cut various plates at different KHz, will study them in the morning.
Cheers.
Left the settings as they were yesterday.
(will check on the 15KHz during the week)
Cut some bigger panels for the waste tray area (it takes more time drawing / programming than cutting).
It's magnificent the way it cuts dross free (no cleanup required), the parts cut just lift up and out.
Cheers.
(will check on the 15KHz during the week)
Cut some bigger panels for the waste tray area (it takes more time drawing / programming than cutting).
It's magnificent the way it cuts dross free (no cleanup required), the parts cut just lift up and out.
Cheers.
zombieengineer
ZombieEngineer
Lilow is having a party with these cuts. Sparklers - Extra large 
I know plasma cutter does produce something of a spark show of blobs of molten metal, but this is closer to a molten metal spray gun.
I know plasma cutter does produce something of a spark show of blobs of molten metal, but this is closer to a molten metal spray gun.
@zombieengineerLilow is having a party with these cuts. Sparklers - Extra large
I know plasma cutter does produce something of a spark show of blobs of molten metal, but this is closer to a molten metal spray gun.
When the spark show is like it is, the cut outcome will be great.
It is easy to say, I should have had one of these when I was building frame rails / chassis's.
I'm really astounded by the quality of finish this machine delivers.
The G200 coding of the G3 works perfectly.
All the design, building, testing has paid off, even though the learning curve was vast.
Cheers.
zombieengineer
ZombieEngineer
I suspect the difference is the spot temperature for a laser is much higher and the liquid metal has a lower viscosity (flows like water rather than thick syrup). Makes it easier for the gas to strip the metal out of cutting zone.
You are probably getting nice shiny cuts using nitrogen as it is basically inert (no oxidation). If you used compressed air I suspect the surface will have a grey finish (light coating of black magnetite).
The only metals that off the top of my head that react with nitrogen at elevated temperatures are Magnesium and Titanium.
You are probably getting nice shiny cuts using nitrogen as it is basically inert (no oxidation). If you used compressed air I suspect the surface will have a grey finish (light coating of black magnetite).
The only metals that off the top of my head that react with nitrogen at elevated temperatures are Magnesium and Titanium.
@zombieengineer
As I think I mentioned, using Oxygen.
Did you see the split in the spray going in one direction.
I think this is cutting both sides of the cut evenly and straight.
Also on piercing, you can see a single beam before movement.
A lot of things get noticed when evolving areas.
Cheers.
What thickness and material type ?I had some steel cut by our local steel company recently and figured I'd post a photo of the surface finish of the plate, just for reference.
I was pretty happy with the surface finish.
Looks like the finish you're getting.
View attachment 12699
Cheers.
5mm steel.
Data sheet.
Data sheet.
Thanks, HA250 is oiled & pickled, who polished it ?
Got to ask, did you get it bevel cut on the circular part ?
Cheers.
Right now, feeling relieved that this project wasn't in a vain attempt to do something that some may have thought not possible.
The knowledge gained from the first Plasma build in 2000, the 3D Tig a while later and now this.
The collective situation has allowed me to use the DT115 comparator board that I redeveloped into an accurate control for height, now the development of the Laser control box.
It's been a big win personally.
So thanks to all you guys worldwide for watching, last count it came up at +52K of views.
Thanks all those who had a say along the way.
I have nearly cut all the parts designed for the bed, so will start installing them.
A special thanks to Masso who didn't realize that their G200 code fitted the purpose, I must have seen the usefulness of it straight away.
A photo of some the last big panels to be cut, each one of these took around 4 minutes to cut, with no clean up required ( design time / programming a lot more).
Cheers.
When this is done, maybe look at Fibre Laser Welding in 3D with height control, this Raucus power source used was only meant for welding so knowledgeable people said.
The knowledge gained from the first Plasma build in 2000, the 3D Tig a while later and now this.
The collective situation has allowed me to use the DT115 comparator board that I redeveloped into an accurate control for height, now the development of the Laser control box.
It's been a big win personally.
So thanks to all you guys worldwide for watching, last count it came up at +52K of views.
Thanks all those who had a say along the way.
I have nearly cut all the parts designed for the bed, so will start installing them.
A special thanks to Masso who didn't realize that their G200 code fitted the purpose, I must have seen the usefulness of it straight away.
A photo of some the last big panels to be cut, each one of these took around 4 minutes to cut, with no clean up required ( design time / programming a lot more).
Cheers.
When this is done, maybe look at Fibre Laser Welding in 3D with height control, this Raucus power source used was only meant for welding so knowledgeable people said.