Low budget plasma setup, what do I need?
22 Jun 2019 05:00 #137555
by rodw
Replied by rodw on topic Low budget plasma setup, what do I need?
Yes, upgrading the power hurts in this country. 100 amps is pretty big by most industrial standards around here. I Was a bit worried about my 125 amp plasma cutter which officially draws more than what comes in to my unit but its been running fine off a 32 amp 3 phase power point.
I know a couple of laser cutters who have relocated and it was pretty horrendous to get the power and in one case, they did not think about it at all so had a pretty torrid time over it.
I know a couple of laser cutters who have relocated and it was pretty horrendous to get the power and in one case, they did not think about it at all so had a pretty torrid time over it.
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22 Jun 2019 09:39 - 22 Jun 2019 09:51 #137572
by tecno
Replied by tecno on topic Low budget plasma setup, what do I need?
I did a short test with 200A AC on aluminium and no problems with my power lines.
So I am a happy camper
In my workshop I have 16A breakers with C character.
Could it be that this welder has PFC (power factor correction) ?
So I am a happy camper
In my workshop I have 16A breakers with C character.
Could it be that this welder has PFC (power factor correction) ?
Last edit: 22 Jun 2019 09:51 by tecno. Reason: added text
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22 Jun 2019 23:45 #137619
by tommylight
Replied by tommylight on topic Low budget plasma setup, what do I need?
Andy thanks for the tip, but i have used that tig exactly once since i got it 3 years ago to test if it works, it did so i was happy.
My home has the wiring for anything i can throw at it as i did the wiring using 5X6mm solid wire, my whole workshop gets it's power from a single 3 phase socket in the kitchen. Back when i build the house i was living in the city centre so it was an overkill to have such thick wires, and because of that i had installed only 16 and 25Amp fuses.
I already bought the 40Amp ones but since i will have to move soon enough i do not feel like changing them.
I also need a new line with at leas 5X10mm for my Mazak lathe, that monster uses 40 KW at full throtle. As Mr. Smith would say " it is inevitable " ( quote from Matrix.
My home has the wiring for anything i can throw at it as i did the wiring using 5X6mm solid wire, my whole workshop gets it's power from a single 3 phase socket in the kitchen. Back when i build the house i was living in the city centre so it was an overkill to have such thick wires, and because of that i had installed only 16 and 25Amp fuses.
I already bought the 40Amp ones but since i will have to move soon enough i do not feel like changing them.
I also need a new line with at leas 5X10mm for my Mazak lathe, that monster uses 40 KW at full throtle. As Mr. Smith would say " it is inevitable " ( quote from Matrix.
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22 Jun 2019 23:48 #137620
by andypugh
My point was that often you will need a breaker of the same capacity, but a higher instantaneous rating.
In your case, with oversize wiring, you could use type D breakers and still be sure that they would work properly.
Replied by andypugh on topic Low budget plasma setup, what do I need?
I already bought the 40Amp ones but since i will have to move soon enough i do not feel like changing them.
My point was that often you will need a breaker of the same capacity, but a higher instantaneous rating.
In your case, with oversize wiring, you could use type D breakers and still be sure that they would work properly.
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23 Jun 2019 01:22 #137631
by thefabricator03
With my current build I am using a 1500w toroidal power supply for my DC servos,
I wired my control box up with a normal breaker and the inrush current kept tripping the breaker,
I changed it out for a D curve breaker and no more problems!
Replied by thefabricator03 on topic Low budget plasma setup, what do I need?
In your case, with oversize wiring, you could use type D breakers and still be sure that they would work properly.
With my current build I am using a 1500w toroidal power supply for my DC servos,
I wired my control box up with a normal breaker and the inrush current kept tripping the breaker,
I changed it out for a D curve breaker and no more problems!
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23 Jun 2019 20:49 #137670
by tommylight
I am fully aware of different types of breakers and different types of Ground Fault interrupters, i have plenty of them installed and in use, with the habit of checking them every 3 to 6 months.
Here i can find only B type breakers and 300mA delta GFI ( lately, like in last 8 months there are by some miracle 30mA ones, but usually 40A and under, i use 63A and up ). I did manage to get 3 of the C type variety at 40A, so that is what i plan on using for the Mazak at the "for the time being unknown" location.
Thank you very much for your continued support.
Regards,
Tom
Replied by tommylight on topic Low budget plasma setup, what do I need?
Andy, sorry if it comes through as ignoring you, i most certainly am not.
I already bought the 40Amp ones but since i will have to move soon enough i do not feel like changing them.
My point was that often you will need a breaker of the same capacity, but a higher instantaneous rating.
In your case, with oversize wiring, you could use type D breakers and still be sure that they would work properly.
I am fully aware of different types of breakers and different types of Ground Fault interrupters, i have plenty of them installed and in use, with the habit of checking them every 3 to 6 months.
Here i can find only B type breakers and 300mA delta GFI ( lately, like in last 8 months there are by some miracle 30mA ones, but usually 40A and under, i use 63A and up ). I did manage to get 3 of the C type variety at 40A, so that is what i plan on using for the Mazak at the "for the time being unknown" location.
Thank you very much for your continued support.
Regards,
Tom
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25 Jun 2019 09:56 #137780
by tecno
Replied by tecno on topic Low budget plasma setup, what do I need?
Updated schematic
Question:
Where do I connect the Pilot Arc?
Question:
Where do I connect the Pilot Arc?
Attachments:
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25 Jun 2019 10:21 #137782
by rodw
Replied by rodw on topic Low budget plasma setup, what do I need?
There is nothing to connect for the pilot arc, thats handled by the machine. Sorry but I don't know enough about the cards you are using to comment on anything else.
5 volt logic level seems low to me as I'm used to working with 24 volts, I hope its not affected by noise.
5 volt logic level seems low to me as I'm used to working with 24 volts, I hope its not affected by noise.
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25 Jun 2019 10:31 #137785
by tecno
Replied by tecno on topic Low budget plasma setup, what do I need?
Is ARC OK to be setup somehow? Is some sensing device needed?
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25 Jun 2019 12:20 #137795
by rodw
Replied by rodw on topic Low budget plasma setup, what do I need?
I think you might be able to synthesise ArcOK by monitoring current on the material clamp lead. You may have luck with a slotted ferrite ring with a hall effect sensor glued into the slot placed around the cable. I did make one ages ago but my plasma died so I never used it in anger to know if it worked.
But you might just use the correct mode in Plasmac which sets a voltage threshold for ArcOK for those machines that don't have a signal.
But you might just use the correct mode in Plasmac which sets a voltage threshold for ArcOK for those machines that don't have a signal.
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