That’s correct unless it needs to adjust due to material flexing or a cut height that doesn’t match the voltage.
1 Like
Was going to say the same.
This much discussion about it can be remedied faster than all the back and forth.
Analysis paralysis?
Just turn on plasma cutter, turn on table, turn on air compressor, and cut something running nominal.
Test cuts whether for cut height, cut speed, etc take what, 1-2mins?
In my experience, while only having done this for a few years, would tell me that you would see much more of a difference with other variables than you would running nominal vs smart. Variables such as interference, bad CAM settings, incorrect cut speeds, moisture in one’s air, and more.
1 Like
It doesn’t matter. I’ve done both. If your table is working correctly, we are beating this subject to death. Just my two cents.
3 Likes
Poor horse 
1 Like
OK Its settled one or the other what ever you like best!
2 Likes
That’s just it though, we’re all saying the same but he’s still questioning it.
It’s best to just take the 2 minutes it takes yo cut and the overthinking should cease
2 Likes
Come on fellas, you seem to be getting all bent out of shape over this. I am trying to solve something that I think is worth solving, that’s all.
Was it nescessary to go to the moon? NO, but you did it because you wanted to.
Same thing.
3 Likes
It wasn’t a personal attack. Just my opinion. Mrs. Bigdaddy also calls me a curmudgeon for good reason.
2 Likes
The female version of a curmudgeon is a TERMAGANT.
2 Likes
A win we did say on topic for the most part.
@curmudgeon I encourage you to study all you can. I do believe you may possibly have a misconception of the different. I don’t mean that in a bad way.
2 Likes
As I understand it in my way of thinking. So that delay that langmuir describes is the actual time fire control requires to determine what the target voltage is. With nominal voltage it isn’t necessary you set the target voltage so it doesn’t need that sampling period.
2 Likes
No offence taken at all! My brain is wired in such a way that things don’t make sense untill they make sense, ya know what I mean?
2 Likes
I chases squirrels sometimes too!
1 Like
This is coming from a guy that posted 13 pics when one would have been plenty
4 Likes
True
It was more an emphasis on how “smartvoltage is more than good enough” and unless you’ve really mastered things, I normally suggest that people don’t go trying to “fix” something if it ain’t broke.
On the other hand, I’ve met people like @curmudgeon and I hope he doesn’t take this in a negative manner. We’re all wired differently, we can’t help it. And that’s one that I have to remind myself as well.
But I know one guy that will question to the bitter end something relating to his truck, or a vehicle in general, even though said inquiry is a commonly discussed one and one that’s reached the same exact verdict by many.
Kind of like Bon Jovi; 100,000,000 fans can’t be wrong
However, because he hasn’t gone through the steps himself, he’ll still question it the whole way through. Except, he’ll literally go on about it for an entire year or two straight. I think we’re going into three years now and he’s yet to replace a certain component he’s been questioning a lot.
Anyway, definitely don’t mean to dog pile on him or anyone. But the beauty of having our own tables is, we can cut whenever we want! And if I was wanting to test the whole nominal vs smart, I would just as quickly.
I did do so myself but it was when I had that issue with a faulty o-ring on a BRAND NEW Hypertherm torch. Man, that was a wild goose chase from hell.
1 Like
Ok I am back with Questions
I am trying to improve hole quality on 1/2” carbon. Hypertherm calls for 140 V nominal.
So I cut some 13/16” and 1/2” holes. I noticed that on the hole the voltage was high around 155- 157
Kinda bounced around. it never got down to 140V
On a perimeter cut that arc will drop down to 140V all most as soon as it gets out of the lead in area.
Cutting holes at 18 IPM
Perimeter at 30 IPM
I think I can improve holes dramatically if I can get the voltage down.
Whats everyone think??
Are you slowing down for holes? The thc will not be active if speed is overridden below a certain percentage of the program speed.
If so you can make a new tool with the speed slower for the holes and do the cam work for the holes separate.
1 Like
Thats what I did. Cut holes with 18 IPM.
1 Like
So you used a separate tool programmed to 18 ipm do doing optimization? I think that is what fusion calls it? The thc may not be setting in good before the cut ends. Can you increase lead in anymore?
I think this is what you were asking
yes
Lead is about as long as it can get. But I dont think that matters as it never gets to the correct Voltage during the complete cut. so that would be the same as a 2” plus lead in
hole test.f3d (186.3 KB)
hole test.step (15.9 KB)
I cant export a DXF and did not know if you had fusion