"When I was teaching in Australia a couple of years ago literally none of the monochrome lasers we tried would work, so apparently there's a difference in toner in different countries. Sounds crazy but appears to be true."
It wasn't the toner, Sam, it was the Coriolis Effect. It's the same...
they both work well, but the methods of transfer are different. i'm a laser guy, but i believe most engravers are pathetic, sniveling, incompetent inkjet-using hacks. but i don't have any bias about that, it's free country. ;-)
It depends on how you're using it, but 30 minutes of steady use can definitely heat up a Gravermeister handpiece. Many years ago I did some production industrial purpose engraving for a tool & die company (way back before 5-axis CNCs were common) and I'd wrap the handpiece with stretchy fabric...
"It surely could be done last week but the general patina matches IMO"
i was just having fun with you. while there are also ways to fake patina, wear, etc., judging by the one close-up it appears your dagger is genuine, and genuinely old, even if the serial number may or may not have been done...
"Other collectors said that this was maybe done by a rotary engraving machine, thus meaning that the number was made later as the dagger was produced. "
the lettering is unquestionably engraved by hand, but that doesn't necessarily answer the question of when it was done. one of us could have...
My only roadrunner sighting was years ago in Arizona or maybe New Mexico. I was driving along about 35-40mph and that little sucker was racing me for a few seconds! I thought, "Dang! They really do do that!".
Here's one from a few months ago. While eating lunch I noticed something hanging from the upper track of the open sliding glass door. It was an emerging Black Swallowtail Butterfly (I later found the empty chrysalis up inside the channel). After about a half hour it lost its grip and tumbled...
i always liked looking at those in the WSJ. the technique appeared to be a simplified version of banknote portraits, presumably done by 'tracing' over a photograph? but who knows, maybe the artists could freehand it...
"1) have small, very defined depth of field AND have excellent focus or 2) have a larger depth of field, but the focus isn't quite as crisp. Leica took one set (think eye side) from each type of scope and built both into the new Leica's with the fusion optics."
Can you get an A60 set up for...
maybe Tira Mitchell will see your post. from what i understand, the A60's lens system is a fairly radical departure from the typical stereoscope, which is one of the reasons there's not a trinocular option.
On a more serious note, I've just never understood the need for a headrest. I can't believe one can have the ultra-fine motor skills, the hand-eye coordination, required for engraving and not be able to hold their head still enough to use a scope. And something touching my forehead would just...
i'm guessing a blue or spruce grouse hen. blue grouse is among my favorite wild fowl, but i never went hunting specifically for them, just bagged the occasional one while bowhunting for deer & elk.