I think my pumpkin from last year was more inspired, but this one’s an original. Rachel did well though:
After a bunch of testing and tweaking (lowered the “XY jerk” setting in the marlin firmware, lowered the hot end temp to 222ºC, raised the bed temp to 110ºC, increased filament retraction to 1.5mm) I got the bot printing .1mm layers with 180mm/sec perimeters, and proceeded to print a full-scale Yoda Lite as a test –this time completely hollow to save time and plastic. I was shocked to see in this print facial details that were not at all visible in the .2mm layer-height version. Night and day. He has eyes, and eyelids, with wrinkles! It almost looked like there was skin surface. 0.1mm layers are so small they begin to disappear.
But if it could print at 0.1mm, what about lower? How about the arbitrarily-chosen height of 0.06mm? Apparently yes, it’s possible. It worked. The layers are so barely-there that other very fine layers that run vertically and wrap around the contours of the object have become visible –I think they may be evidence of the limits of the resolution of the x and y axes.
I’d given away the 0.1mm Yoda to a cousin and can’t compare the two directly, but I had taken a couple of very similar photos, and after adjusting their levels to bring out the detail the .1mm and .06mm version look pretty similar. Click either photo to view at full resolution. I should probably just print another .1mm Yoda so I can compare them with my own eyes and see whether it’s worth printing at below .1mm layer height.
In any case, there are plenty of areas of improvement in all of these prints, but I’m very happy with the progress of my bot’s print quality. Fun.
I really wish I’d asked if I could buy one of these menus, it’s the gift that keeps on giving.
Although I think many of these translations are hilarious, it is worth noting that I don’t think badly of whoever put it together –it was extremely courteous of them. Very very few English speakers ever pop into the small town of Hengdian, let alone drop into Ai Qi Coffee. So kudos to that establishment for trying (and largely succeeding) to accomodate the occasional English-speaker.
Customer not really angry.
These images show the combination of weights used, the span angle setting, the hole in the mounting plate to which the camera was attached (hole N), that the gezornenplatz screw was in place, and the position of the mount plate.
When I saw this sticker I laughed aloud2, then reflected on the fact that if my parents had sported this on their Toyota station wagon when I was growing up, I’d probably have been a better student. Fear of unknown unknowns3 is a great motivator.
OK, so the bumper sticker has nothing really to do with the “Tiger Mom” meme, but that phrase is all over the net and the whole concept alternately interests me and cracks me up. My theory is that any truth to Mrs. Chua’s newly-named stereotype has little to do with being Asian4, and much to do with the fact that it wasn’t easy for people to immigrate to the US from China in the 1960s-80s and the process disproportionately selected for the hard-scrambling type. Many of those immigrants later decided5 to imbue in their kids the same drive that served them in getting through that filter. It’s just like the Johnny Cash song “A Boy Named Sue“, but with the parental focus being toughness mental rather than physical.
But no need to be so serious; The best Tiger Mom jokes I’ve come across so far are the article “New Parenting Book Sparks Outrage” from The Onion, and Jen Kwok’s “Tiger Mom Rap!”.
- Yes, I smudged out the license number, just in case China’s “Human Flesh Search Engines” are on the lookout for people with unharmonious bumper stickers. [↩]
- …then I stopped laughing and wondered whether the driver could have purchased this sticker as a deliberate joke, which would still be funny but less so. Unlikely given that the median level of English literacy among locals of this area in nil. [↩]
- Rumsfeld, Donald, “I never promised you a WMD”, Press Briefing (Winter 2002 Edition), GWB (ed.), URL = <http://en.wikipedia.org/wiki/There_are_known_knowns>. [↩]
- …except for the Orientalist-tinge to the naming of the meme. [↩]
- …or had less choice in the matter than that, since people may often just use the same parental behaviors that were modeled for them when young, or maybe their nature trumps nurture and the filter selected for genetically-driven type-A peeps. [↩]
So here are the header images I threw together yesterday, along with brief explanations:
Due to the extreme horizontal aspect ratio, it’s a challenge to edit images for the header. But it’s fun. The header image displayed per visit is chosen randomly. Once I’ve installed more images, you’ll likely see a different image each visit.