Rabbit owners

[Brian Robison]

Hi Gang, anyone around?
My Epilog gives me a darker mark in stainless than the rabbit.
Epilog is about 11 years old and 25 watt.
Rabbit is 6 months old and 80 watt.
Epilog is at 300 dpi, Rabbit at 600 dpi.

[Dan Hintz]

Focal ability...

[David Somers]

Dan,

So Brian's problem would be a function of the lens optic and the beam quality (size and shape) from the tube? I assume a better lens would help possibly, and far more expensively a different manufacturer of tube?

Hope you are doing great Dan!!

Dave

[Dan Hintz]

In a nutshell, yes... though to be honest, I didn't expect such a marked difference in power density between a 25W RF and an 80W DC. It sounds like there's room for improvement with the DC setup.

[Dave Sheldrake]

Lots of room Dan, rise times on Chinese DC is terrible, pulse rate isn't much better as standard. Get into the SLC and suchlike from GSI though and they easily outperform most of the western RF units but at £20,000 for a 200 watt unit they damwell should

On a profiler the difference between RF and Chinese DC is worlds apart, RF are much closer to single mode where are even the better RECI etc DC tubes are are multimode

It pretty much works out that a 40 watt good RF will outperform an average Chinese 80 watt easily.

cheers

Dave

[David Somers]

Thanks Dave!

That was interesting, and adds more thoughts to ponder on while I wait to buy something.

Actually, I should be cussing you for adding more thoughts to ponder!!! <friendly grin>

Dave

[Dan Hintz]

I included mode in my "focal ability" answer (well, in my mind I did ), but I hadn't considered pulse rate for this. I simply figured without a TEM00 beam (DC tube), the ability to get a sharp focal point (i.e., high power density) was severely reduced. Still, at 80W I would have figured on the sheer raw power would be enough to heat the area enough, the "pixel" would merely be oversized/blurry.

[Bert Kemp]

Now that I'm close to becoming a Rabbit Owner this thread seams to have died Just my luck.

[Bert Kemp]

does anyone use this thread anymore?