New to CNC

[4thStateFab]

I've been doing metal fabrication for about 5 years now and I've always wanted to get into CNC. So i finally broke down and bought a pre owned setup from someone.. Now I'm trying to figure this thing out This is the first thing I cut with the table. Came out good, but I had used some scrap super thin sheet metal. Now I'm trying to cut 14g and my test cuts haven't quite been working out. Tried reading forums and pieced together what I could, but haven't dialed it in yet. Does anyone have some starting parameters for me to work with. My setup:

14 guage sheet metal
Langmuir Crossfire Pro
Miller 625 Extreme
I.R. Refrigerant Air Dryer
PSI 70-110 (been adjusting it up and down)
Fusion 360
Fire Control

Thank you!!

20240706_192852.jpg

[adbuch]

You will need to adjust your settings for the thicker material. Cut speed, pierce delay, and current setting. If you have mechanized cut charts for your cutter, check to see what values are recommended. Otherwise - it will be "trial & error" until you get it dialed in. For thicker material, you probably need to slow down your cut speed - that will be the main thing for your material change from thinner to 14 ga.

https://forum.langmuirsystems.com/t/mil ... ings/11641

David

[4thStateFab]

I appreciate the quick response. Unfortunately the link that guy had posted to download his specs must have been altered. After I downloaded it and tried to extract the files, it says that the file is empty. I'm hoping to find someone who is running the same setup as me who would be able to send me some starting specs for everything you had mentioned in your response. Also would like to know what consumables I should buy to run for those specs and PSI/amps as well. I know I will have to do some fine tuning. I just don't know enough about how to make adjustments for certain issues to be able to start from scratch. Any help is greatly appreciated!!

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[adbuch]

Here is the download link for the text file from my Google Drive. For the original compressed file folder - rename it with ".txt" extension and open with Notepad or similar text editor.



David

[4thStateFab]

That's awesome! Thank you so much!! Now I just need to figure out how to enter it all into the system correctly and I'm on my way!! Lol. Do I enter them when choosing the cutting tool before posting? Or is there somewhere else I can enter them? Also, are there any specific consumables you would recommend? And what PSI should I run?

Thank you!!!