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I'm just asking this because of plain curiosity.
I know the galvo standard is 30kpps and the fastest I've heard of are 60kpps Cambridge galvo's.
I also heard a rumor about there actually being 80kpps galvo's.
So what really are the fastest galvos?:confused:
[popcorn]
on which angle?
30k on 40°
or
30k on 8°
Lets put it in another way,
Currently LD2000 supports 130kpps
saw it on the box.Quote:
Originally Posted by cyberb0b
I'm just being curious here so don't take it all to serious :)
hmm lets say on 8°
I'm sure Laserworld do 1000000pps galvos.
Disclaimer
Actual specification is a lie, any attempt to scan at this stated speed will almost certainly end in tears, result in personal or property damage including but not limited to:
Fire, exploding parts and associated shrapnel damage, severe disappointment and distain, voided warranty.
I bet it's actually rated at: 9000000pps *retardo with their very accurate tools ;3Quote:
Originally Posted by Doc
Cambridge as far as I know has the fastest scanning (6215h?). I have seen X-Y AOD (Acousto Optic Deflectors, cousins of PCAOMs) that could scan Into the high 100s of Khz with small deflection angles.
chad
As far as I know these are not poly-chomatic. So one color only.Quote:
Originally Posted by chad
On the bright side, they don't have a blankpath to worry about.
Cambrigde has "next-gen" 8330 galvos which are an option in the new arctos projectors.
Old thread I know, but currently the fastest we know about is 90K, using our Saturn 1 scanners. Several members here on PL have them so you can take their word for it, not mine...
Scanning beyond 30K is really difficult, not only because of torque generation reasons, but also because of mechanical stiffness and resonances. These are discussed in my book about laser scanners (www.LaserScanningBook.com).
*DZQuote:
Don't take my word for it, buy my book.
.........................
Giggles aside, it's all true from my vantage point. I've got my new Saturn 1bs set to 60k at 16 degrees optical and they run nearly silently and cold. I've also run them at much greater scan angles at 60k and they still do the Ilda test pattern with ease. I'll gather stats and supporting video over time, but I have no doubt that these scanners will continue to perform admirably up to 90k or more. Oh, and that book is a great read and looks like a cookbook to better scanning in some sections. I'd be willing to bet that you will enjoy the read.
David
It's a classic must have like the TTL Cookbook. I've read it several times and get a little something more each time. It is amazing to me how complex a mirror spinning on a shaft is in terms of the physics. Until someone develops shrith for real or goes to the ring world to get some I think we are near the physical max. Only way forward is a different way to bend the beam. Even mems isn't going to do it and electroacoustic can't make a large enough bend to be effective. We need a way to charge the beam so we can deflect like electron beam. Do that and win Nobel prize.