Cheap plasma cutter Cut50 pilot arc - All you need to know to make it CNC compatible
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- Опубликовано: 22 июл 2024
- #CNCPlasma
#HFInterference
#Mach3
#DIYCNCMill
#3018CNC
#Fusion360
#Tutorials
In this video, I summarized quickly all the tricks and tips that I did to make my cheap plasma cutter cut50P (P for "pilot arc") works perfectly with my home-built CNC plasma cutting table.
- 1st tip: Use bigger torch that was designed for higher current. That way the nozzle and the electrode will last longer and the cut quality will be more consistent.
- 2nd tip: Connect the trigger wire directly from the connector on the plasma cutter to the relay and keep it far away from the pilot arc wire and the the air hose to avoid HF noises and interference.
- 3rd tip: If your arc is sputtering, the plasma cutter doesn't cut continuously, you will have to check inside the plasma cutter and adjust the spark gap. Keep it at reasonable distance (0.8mm following the manufacture manual).
- 4th tip: use 220V instead of 110V. 220V will make the arc more stable and also the plasma cutter will have higher duty cycle when cutting at high amperage. 
Наука
Great use of technology and ingenuity.
Fantastic info Minh! Thank you!
Thank you for the info exactly what I was looking for.
This is a Good Video very informative ,thank you ,nice little CNC table .
Guys a fricking Genius 👍🏻
Thank you for the video. Very informative.
Ha, Ha, Ha, Bro, you hit the nail on the head in the first few seconds of the video, this is what I was looking for. I laugh so hard the other in the home may have wondered what happened.
Fantastic video mate
You are very samrt man, i have arc break in my plasma this is 1 year and still not reslved…you can resolve any issue , bravo
That is a great video! Thanks!
Saludos cordiales. Felicitaciones por tan completo video. Muchas gracias. Great job Man!!!!
Nice job a gain! Thank you for sharing!
you have very good english minh.... for that reason alone is enough for me to subscribe to you. great video!👍🏻
thank you so much !!!!! keep on building bro
Great video
That is AWESOME!
👍
Nice!
Great vid thanks.
I LOVE YOU MAN
I love you too bro!
Do you have a link on the a141 torch you bought and the correct consumables for it?
Hi Minh, hope youre are we’ll, funnily enough I have a very similar set up and im getting spluttering but my spark gap doesnt appear to be adjustable which is annoying but my question is around the the vietnamise thc that i also bought and sheetcam, in the post processor do you use the mach3 version with or without z control? i cant get my thc to work properly until i get the spluttering fixed but i just don’t understand how its meant to work! the instructions are not good and support don’t reply! can you remember? thanks Rich
Hi Minh! Glad to see you in good shape despite the pandemic. Can you give us the "final" cost of your amazing plasma cutter with all those upgrades? Take care of your beloved ones and yourself. Thank you for the post.
I only upgraded the torch that cost $70, the mechanical THC cost less than $6. Other than that, the machine cost the same as I started. I would say around 1k total including the plasma cutter. You will need an air compressor of your choice, the bigger, the better
hello, i cant find the video that you mentioned early in the video , about how to make any plasma cutter HF "free", or how to wire the ground to clamps , and to which clamps ?
Great video. My Mophorn CUT50 pilot arc does not have the board like yours. I am certain there is a relay but not as obvious as yours.
Increíble video ! Compré la misma cortadora gracias a tu video, eres un influencer jaja
Estoy armando mi primera cnc y lo que me falta ahora es el compresor, de cuantos litros es tu compresor ?
Saludos desde Uruguay 🇺🇾
Would you please mention the pilot arc video
How thick is that sheet metal?
dude! cool
Mine was working fine but my air hose was not tight and my buddy tighten it up then it started sputtering change consumables to no luck I was mad at my buddy for messing with something when it was working good after about 40 min of troubleshooting to no avail then by some fluke another buddy turned the air pressure down and it works great so the problem was when he tightened the air fitting on front of machinery the hose and ground and stopped the leak it apparently bumped the air flow and that was more than it could handle
Hello, what thickness of sheet metal can you manage to drill with this plasma model?
On the websites we can read that these posts cut up to 8 mm but this is valid when we start at the edge of the sheet. Have you been able to test the maximum capacity of this 50P cut?
Thank you.
No, I haven't cut anything thicker than 1/8" which is only 3.2mm
great video, thanks! after all this cuts in the end of the video, what have you got in the end? could you show the final result and assembly? thanks!
Soon my friend, I'm building a dust collector. The project is coming nicely and I will show the result in another video.
@@minhsmancave9448 cảm ơn
Amazing what you have done with that cheap plasma cutter What is the thickest you can cut with it on the cnc table
Whatever your plasma cutter is capable off. In theory, mine can cut up to 12mm thick, but I've never tried since I haven't found any application that needed that thick bracket yet. Also because the thick steel stock is expensive.
Enjoyed your video! Quick question, what is model number of the torch head that you ended up sing?
I'm using an A141 torch. But It's not straight forward to connect this torch to a standard plasma air hose. The connector might be M9x1 or something like that. I had to cut the connector on my P80torch and braze welded it to the A141 torch head. If you also think of using a higher current torch, maybe should go for this one: www.aliexpress.com/item/4001027809021.html
you can chose the M8x1 thread so you can replace the torch directly on to the P80 torch air hose.
@@minhsmancave9448 Thanks for the advice!
They now make the model CUT50L, which has a blowback pilot arc that is not high frequency. Near the same price.
Didn't know that, thank you for the info 👍
May i know how to connect the cut50p to mach3 for turn off? Thanks
Connect an output (usually output 1) of the mach3 board to a power relay to control it, then connect the trigger wires of the cut50p to the relay.
Wow! Thats cool, is your z axis just floating?, how are you using that without auto height controller ?
Check my previous video about the mechanical THC: ruclips.net/video/CsitDV_KtYM/видео.html
I have a 15A circuit at home, will I get away with using it or will it flip the breaker?
Depending on the cutting amperage, higher cutting current definitely will set the breaker off.
Does the new torch improved the cutting quality? Like angle of the cut edge, dross amount. My Cut50 cut quality is not the best, I tried a lot feed rate/current/air pressure variations but still have some issue with sticky dross buildup. Some adviced a compressor air filter, that's will be my next project.
Yes, the new torch definitely improved the cutting quality. I can see the difference when cutting thicker sheet metal like 3mm. By looking at the p80 torch, I don't think the air inside the nozzle swirl as it supposed to. The a141 torch has a swirl ring that you can see and also the burnt marks inside the nozzle, electrode that the air swirled and make a cleaner cut. With the a141, I can cut 3mm sheet using 30 amps and 45psi and the cut was quite clean. With the p80, I had to use 50 amps and 70psi, and the cut was still crappy. Tried many settings with p90 but couldn't get it right. Defintely the torch does matter.
One bad thing about the a141 is the thread to connect it to the hose, it's not compatible with P80 hose so I had to cut the connector on the p80 torch and braze welded it to the a141 head.
What software are you using to make design?
For the brackets, you can use any CAD software, like fusion 360, FREECAD. For arts, I don't really do much, or I don't know how to do it. I only know how to convert vector images or silhouette images to dxf files using Inkscape.
Looks like you have got that cutter working well now. Did you remove you THC?
I have just put a video on of my machine but I'm having trouble setting up mach3.
Yes, I removed my THC and am using the guard I made. It works better on real thin sheet metals (24 gauge) because those sheet bends like crazy and the THC doesn't react fast enough to deal with the sudden bending. Let me know what type of board and problem you have, I might be able to have some suggestions.
I'm looking at your video and saw your problem. You can't use the limit switches for homing switches. Each homing switch has to be connected separatedly in to one input port. The limit switches can be connected all in one pin as you do now. So, with your config right now, you will have to unable all the homing switches.
@@minhsmancave9448 I didn't know that I thought you could use the same switches for limits and homing. I will have another look at it tomorrow. Thanks
thank you for the video . about the torch can you but the linke for the torch you upgrade it in ebay . and i get cnc plasma cut60P is it this torch compatible with it thanks
You can make any air cooled torch compatible with your CUT60. I'm not sure which torch you have now? If you wanted to use A141, you might need to modify the connector on your torch to be able to fit the hose that's already on your machine. Here's the link to the A141 torch that I have:
www.ebay.com/itm/OEM-Trafimet-Style-Plasma-Torch-Straight-A141-Head-Body-Air-cooled-for-CNC/322454075171
But you can buy it cheaper from AliExpress, especially when there's a promotion:
www.aliexpress.com/item/32740671777.html
@@sudangraphic You should buy this one: www.aliexpress.com/item/4001027809021.html
Choose "Internal M8X1". This torch is 100A and can be use directly using the hose of your torch (P80).
Thank anh. Em có sẵn súng P80, muốn nâng cấp thì mua thêm bộ đầu của A141 (điện cực và béc của A141) để lắp vào P80 có được không anh ?
Phải mua body của A141, vì đầu lắp điện cực khác với p80, vẫn có thể dùng dây của p80. Nhưng A141 có đầu nối khác P80 nên phải cắt ống của P80 và hàn vào đầu của A141 hơi mất công. Nên mua cái này, chọn internal M8x1: www.aliexpress.com/item/4001027809021.html
thì chỉ cần tháo đầu P80 rồi thay đầu mới vào là được
@@minhsmancave9448 thank anh
what amperage does it need from the power socket?
At least 15amps
Tell me...what mean in tips no 2 sir...
Sometime when plasma on , my mach3 is hug, display on monitor stopped
High-frequency interference, hard to remove. Installing the THC system will help
If I use only IHS/Floating switch is enough good, isn't it?
I can't be sure since I don't know your setup. Try it for yourself to test it.
@@minhsmancave9448 setup as like your video , on mach3 and sheetcam only...(NO THC)
I couldn't remove the interference completely. When cutting at higher amperage, my Mach3 still got stopped. The solution is change your breakout board to a ethernet port one or change your plasma cutter to a blowback pilot arc.
Use shielded cable and ground to earth. You need to speed up the cut speed. Your showing the cuts with the video play faster. But that's how fast it should be running. But nice job on the DIY build.
Thank you for the advices. I have a whole world to learn when it comes to metal cutting. My machine probably is not sturdy enough or the belts are not rigid enough, when I cut fast, the square corners become round. That's why I tried to lower the amperage and cut slow.
@@minhsmancave9448 when you draw your squared part you need to Fillet them. it makes a very small radius in the corners. in a 90deg cut the torch stops for a half sec. with a 1/32 radius the torch fallow's the line only slowing down a little.
I'm aware of the kerf radius of the plasma torch. What I saw was about 5mm radius. It might be the belt on one axis wasn't tightened enough. I will check and try to cut faster.
Great vid.. is this plasma cutter worth buying...?
With all the trouble with HF interference, probably not. I would buy a blowback pilot arc one instead
Hallo, may i send email to you? I have problem with my plasma cutter, its cant cut continu when i try to cut 2 square. The 1st square is done but 2nd squar the plasma cant work. I want to send my cnc video to you. Thanks...
Sure, you can find my email on the homepage of my channel, in the contact menu. And try to give me as many details as possible about your machine, what type of breakout board, the Gcode, etc.
@@minhsmancave9448 hi, i cant find your email at your home page channel 😭😭
@@minhsmancave9448 i really need your help
minhdung.diy@gmail.com
@@minhsmancave9448 thanks, im already send email...
No such thing as overkill for these sorts of things. If it only needs 75 and you throw 250 at it then it is safe to say that 250 would last for generations.
Yes, more importantly in this case is that the arc stays consistent and straight so the cutting quality will be the same from start to finish.
@@minhsmancave9448 I always came from a background where you see what you need and you build it beefier that way you have something that will last longer and will be able to handle whatever you think you will ever throw at it and a bit more.
@@thebeststooge yes, I usually keep things about 10% or 20% from the maximum for safety margin. But sometimes the budget will decide what I get. That's way poor people do things :D (I'm sure you are with me on this one)
@@minhsmancave9448 LOL, you know that to be the case.
4:43
Minh are you an engineer where does your knowledge come from.
Just like everyone here, I do a lot of internet searching. Just pickup a little here and there to fix my problems. Perseverance is the key, keep looking and we'll find what we need.
Hi
hello cant you help me with my cnc plasma cutter
it is possible to contact you via whattsapp
Can e-mail me or describe he problem to me. I'll try to help you figure it out