AC Heads...

[TCT]

Hmmm all this time I thought the downward pressure was electric cause I thought you could adjust that pressure to exact pressures and it not fluctuate. Does the air in the choppers fluctuate and cause any issues?

You can adjust to exact pressures, I think the most common way is with a pressure regulator/gauge. I can take a pic of how both of mine adjust tomorrow when I get in if that helps you (visual again). The RPM had that super sexy digital readout for it though!

[Prosperi-Tees]

I get it now. I just watched the RPM videos again and now I get it. Actually watched the video years ago and I guess at that time I couldn't put two and two together. The difference is a dial indicator versus the digital and I thought the digital meant the pressures were electrically controlled somehow.

[jvanick]

I rigged a air regulator on my javi chopper head... I can't tell you how much of a difference it made.. no longer was I guessing with the stroke length adjustments on the top of the cylinders...

now we have the stroke length set WAY long, and the air pressure regulates how hard the squeegee pushes... amazing how much better the prints are when you're printing with minimal pressure (we're around 30-35 psi, depending on what ink we're using)

While you could use electric servos on the print choppers, maybe even with a force feed-back loop of some sort, the cost to do that vs. pneumatic cylinders and a air solenoid would just not be worth it.  Trying to use an electric solenoid or actuator for the chopper would put you back in the same boat as having no air regulators on the chopper at all.

[Anatolhelp]

WOW!  This is the best thread and advertising for the VOLT!  Imagine what you can do with a Industrial All Electric Press !   

[GraphicDisorder]

WOW!  This is the best thread and advertising for the VOLT!  Imagine what you can do with a Industrial All Electric Press !   

How are you dealing with print pressure on the Volt? 

[Prosperi-Tees]

Wondering the same thing about pressures. Are pressures adjustable per head? That would seem pretty important.

[Gilligan]

Is it done like the Brown?

I'm certainly not impressed with their method and I've watched that machine print probably more than anyone else that doesn't own one (my buddy owns one).

[Anatolhelp]

Think about this.... The more air you require, the bigger compressor and chiller you will need. They ain't cheap. I have a servo indexer and AC heads. I am running it on a run of the mill 60 Gallon Kobalt compressor and a small chiller for 9 years. Not one problem....

With the Volt you don't need a air compressor and chiller

[GraphicDisorder]

WOW!  This is the best thread and advertising for the VOLT!  Imagine what you can do with a Industrial All Electric Press !

How are you dealing with print pressure on the Volt?

[Anatolhelp]

manual adjustments, easy as 1,2,3

[Prosperi-Tees]

Can you have different pressures for each head?

[Gilligan]

I think we were looking for more description than "1,2,3"

I don't even have an auto (yet) and I can tell you that you are able to adjust PSI's on the choppers to deliver more or less pressure... AND you have height adjustments as well.

Boom, a complete auto idiot just gave 10x (probably more) info than you did on how pneumatic chopper cylinders work on a press than you did on how the electric ones work.

Posting good information is as easy as 1,2,3 as well.

[jvanick]

in my new experience:

adjusting the air pressure going to the choppers works 100x better than the height control knobs... I don't even use my height knobs anymore (they're set that if you had a ton of pressure on the head, you'd just bend the squeegee over).

[GraphicDisorder]

manual adjustments, easy as 1,2,3

Elaborate. 

[Shanarchy]

manual adjustments, easy as 1,2,3

Elaborate.

I'm not sure if it's easily feasible, but these are the type of things a quick cell phone video would be awesome!