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Langmuir CNC plasma any good?

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Jaxon Industries
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Langmuir CNC plasma any good?

Post by Jaxon Industries » Mon Aug 26, 2019 8:28 pm

Hi all,
New to the forum and had a question with respect to the Langmuir CNC system. Are they suitable for the home hobbyist or is this something to stay away from? Why does Langmuir not include the Z axis option into the unit by now? I see that there are many individuals have successfully built and installed them so don't understand why this is not an option from OEM. Any feedback would be appreciated.
Thanks!

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acourtjester
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Re: Langmuir CNC any good?

Post by acourtjester » Tue Aug 27, 2019 11:09 am

I think you need to evaluate your needs and what you will be cutting, it seems that the Langmuir table is limited as to what it can do. I find the lack of a Z axis movement very limiting, in both the pierce/cut height positioning. With a Z driven system you could have a floating head assembly to find the metal surface when starting a cutting operation. And the addition of a THC for surface level following action for continuing to maintain the correct cut height. Here is amember who has one and is moving on to building a replacement.
https://www.plasmaspider.com/viewtopic. ... t=Langmuir
DIY 4X4 Plasma/Router Table
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gamble
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Re: Langmuir CNC any good?

Post by gamble » Tue Aug 27, 2019 11:59 am

Consider your needs like stated above.
I started with a Torchmate 2x2 with no height control. While it did suck for a few years it did make me money and it was inexpensive cost to get started.
No height control will have headaches but keep your expectations realistic. It is a nice entry level kit for any hobbyist or small shop. I wouldn't be doing production stuff with it 8 hours a day without height control.
I had the table and it was pretty well put together. I think it's better than my 2x2 torchmate (hardware wise, not electronics)
Best part is that the community seems to be developing their own upgrades.
Torchmate 2x2 - Flashcut
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Finter
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Re: Langmuir CNC any good?

Post by Finter » Tue Aug 27, 2019 8:14 pm

All above is good info. For me.....low cost entry into cnc plasma was the goal. Success with the Crossfire. Using my wood cnc knowledge I quickly have billed many $1000's of dollars in steel work. I'm not sure I would ever up grade because the cost of a crossfire is so low. If needed just buy another.
Even though the entry point is lower I'm smart enough to not sell my products cheap. I hope others don't sell cheap.

SA Precision Cuts
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Re: Langmuir CNC any good?

Post by SA Precision Cuts » Sun Sep 11, 2022 7:23 pm

I have had mine for a year and love it. I use mine weekly for side hustle. Torch Height Control is a must if you purchase one. I have many videos on tiktok under sa_precision_cuts if you want to see my work.

Rftek
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Re: Langmuir CNC any good?

Post by Rftek » Mon Nov 07, 2022 8:41 pm

Hi, another Langmuir CNC user here.
I run a Pro setup w/ a Hypertherm 45XP.

The machine (w/ THC) has a couple inches of Z travel.

I have not used any other machines so don't have good comparison points.

The machine control software (Firecontrol) can be downloaded for free to checkout. It allows control of the CNC, does some features like re-sizing & cloning of a part.

The workflow for me is this: design (Inkscape for example) -> toolpath (sheetcam for example) -> cutting (Firecontrol) .

They (Langmuir) update Firecontrol pretty often, the machine requirements seem pretty low (I run on a low end Win10 machine) and if you are meeting basic requirements (good dry compressed air, minimal clearance between cut paths, etc) then it works really well. There is good recovery from a loss of arc, which for me happens too often when I run out of air.

Good luck! I hope you find something that works for yah, let me know if you get the Langmuir Pro. Do account for the water handling and general floor space associated with a machine like this.

adbuch
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Re: Langmuir CNC any good?

Post by adbuch » Tue Nov 08, 2022 12:05 am

Rftek - thanks for your review!

Another popular workflow is: design (Fusion 360) -> toolpath (Fusion 360) -> G-Code (Fusion 360/FireControl post processor) -> cutting (FireControl).

Langmuir has some great Fusion 360 tutorial videos as well.

David

https://www.langmuirsystems.com/software/fusion
f360.jpg

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