Cnc plasma torches for 60- 70 amp units

[cobretti]

thanks geezer - my concern is about the shielding I have been reading is required when using HF. Although I am using shielded cable regardless for my electronics I just want to be sure the money I am putting into this is well spent <- read DIY on low budget

[geezer]

thanks geezer - my concern is about the shielding I have been reading is required when using HF. Although I am using shielded cable regardless for my electronics I just want to be sure the money I am putting into this is well spent <- read DIY on low budget

Shielding is not required for HF, as long as you don't park your computor ontop of the cutter box, The computor is the weak link in the setup as long as it is a distance away you don't need fancy grounding and the other stuff they talk about , simple ferrite chokes on the cables will kill of any HF which runs down the wire to your computor(see radio shack for 4 dollar items) Did you see any fancy shielding or grounding on the video I posted no...what you saw was distance between the table and the cutter and the computor.

Stay away from nay sayers and people who tell bogeyman stories, most of them have no experience and only parrot what they have heard, usually from someone who knows nothing about it.

[kenwhite]

While shielding and ferrite chokes will help to some point, a good single-point grounding of the table and electronics with a short, multi-strand cable is very important.

The high current arc creates noise that is very rich in harmonic frequencies that will radiate like a transmitter and can be coupled into any cable or conductor that approaches the signal/noise wavelength.

Take your time and do it right the first time.

[cobretti]

I was planning on keeping everything within the table since space is very limited - so at most the PC and other electronics will be 2ft-3ft away from the cutter. Ken the table will be in my garage which at this point does not seem to have any good grounding point. If I sound like a noob I only started welding and CNC interest this year

Mark please let me know as I will have the table done in early May. If it is a bit too uch will the accessory torch Duncan mentions work on a PP50?

[performance]

No. You will need an s-75 machine torch.

[cobretti]

Thanks Duncan - now owner of new PP60