Langmuir Crossfire Pro 1/4" test

[@Alex-si1bi]

Hi Greg! Thanks for making this. Been wondering what the accuracy is with the table but after watching your video i realize that even the flare from the cutter itself will have a say in the accuracy. Any plasma cutter that you know of that is really accurate in its cut with least amount of slag? Or is slag part and parcel of speed/power thickness ratio? Thank you.

[@GregsStoneYard]

You will get better with fine cut consumables on thinner material. Hypertherm are the better units, also the most expensive. If you have something specific you want to do, I'd have someone else cut it first to see if you are satisfied with the accuracy and cut quality before investing in a cutter and CNC table.

[@jamescole3152]

It seems to me one of the goals is to not run the torch over any piece that is already cut. Because of tip ups. Not sure why no hasn't figured this out. Is fire control not able to do this?

[@GregsStoneYard]

Firecontrol only moves the torch where it is told to move, like all CNC controllers. That sort of functionality would have to be handled by the CAM software.

[@pacoryu]

Is there any tutorial where first time using is explained? I bought that plasma cutter but dont know where to start. I use Solidworks for my drawings but i dont know how to get the files and codes needed to get a piece done with the plasma cutter.

[@GregsStoneYard]

Hello Francisco, your best bet is to visit the forums on the Langmuir website. There are 3 steps to cutting. Drawing (CAD), Generating tool paths (CAM), and finally software to control the plasma table (FireControl). Drawing you are doing with Solidworks. For CAM you will need to save your Solidworks file as a dxf file then use Sheetcam to generate the Gcode, you can download a trial version. You can use Fusion360 to import the dxf as well, but I'd recommend Sheetcam unless you want to switch from Solidworks and do both CAD and CAM in Fusion360. Once in Sheetcam you generate the GCode file. Then you open the GCode file in FireControl and cut the metal. See this post for more information: forum.langmuirsystems.com/t/sheet-cam-firecontrol-problems/11471/9?u=greg9504

[@pacoryu]

@@GregsStoneYard Thank you so much! You rule man!

[@pacoryu]

@@GregsStoneYard By the way, what software is the one you use to generate the Gcode for your jobs?

[@GregsStoneYard]

@@pacoryu I use Sheetcam. There are some good tutorials by ArcLight (another plasma table maker), a bit old but they cover the basics: kzbin.info/aero/PL0cFdXFdV4H0d2XvNW760A7pMGkrnv9yI

[@pacoryu]

@@GregsStoneYard I finally make it happen, first succesful cuts yesterday's night. Thanks again!

[@DeanBateman]

Super helpful thanks, have you tried running multiple programs on the same piece of metal to allow you to cut an area larger than the table size? I'd like to cut a full 2.4m X 1.2m sheet and wondered if it is possible

[@GregsStoneYard]

Sorry for late reply, youtube didn't notify me of this post. It is possible, but I haven't tried it yet.The technique is called 'indexing'. Basically you break up the drawing into multiple parts. It's the reason I added the fence, so I can slide sheets and keep them square to the table. What I have done so far is put on sheets larger than the cutting area, where I have found the center of the sheet manually, then I move the torch to the center and zero it. In the CAM software (sheetcam) I put the part center at the origin (0,0). This was for cutting a bolt hole pattern. If you go to my instagram you can see an example.