Yesterday I stumbled upon the design of the #unisex #toilet sign I had made for my former company‘s offices (inverted, white on black back then). I ripped off the idea from a design I found somewhere I can’t credit as I forgot the source. Today I used it as a speed benchmark for the totally unsafe little K4 3W #laser #engraver I recently acquired. The graphics is ~6x7cm and took ~1h at 80% speed. Engraving depth is about 0.8mm, so 85% speed might be sufficient.

Couldn’t find a 10mm wrench so I used the #laser #engraver to make one out of this crescent wrench #10mmsocket

Anyone willing to hire a #music #engraver who has always worked with #lilypond?

Has anyone used a #Sculpfun #iCube #Laser #Engraver on #linux ?
I was looking at using #LightBurn, but they've stopped supporting Linux and I'm not paying £95 for unsupported software.

#maker #LightBurn #visicut

Joseph Wilhelm Eduard d’Alton (August 11, 1772 – May 11, 1840) was a German #engraver and #naturalist who was a native of #Aquileia (today part of Italy). He was the father of #anatomist #JohannSamuelEduardDAlton (1803–1854). Originally trained for military service, he learned in #Vienna, a thorough knowledge of horses and #horsemanship. He later traveled throughout Italy, the Rhineland and France, and during this time period, gained an insight in the areas of natural and #artHistory.

#WTAF #Carus: #courtesy #accidentals

In my personal house style, courtesy accidentals mandatory have parenthesēs around them (in vocal staves) to be anle to distinguish them, at a glance, when speedily sight-reading, from accidentals that actually change the #pitch. This is to avoid overshooting into the wrong direction.

I get that this is not universal, and even #Gould recommends to not do that (probably because professional #engraving is mostly considerate of publishers’ desire to keep the amount of needed paper (= the cost) down) but permits it.

However, these courtesy accidentals are utterly ridiculous, make the passage actually harder to read, and should not be there: this is open score (four-stave) SATB, not closed score (two-stave two-voice-each), though I would recommend against most unparenthesised courtesy accidentals even there, and it’s not the piano excerpt (where they make sense).

Plot twist: these here (if I got the right location when capturing the photo quickquickquick before running after my #FediCats doing things they shouldn’t in the garden again; if not, then an extremely similar location) actually don’t make sense because the #natural there does not have a corresponding #flat in any of the preceding #measures in any of the vocal staves. 🤦

It certainly lends more credibility to my theory from the preceding post: unexperienced/undereducated (second paragraph) piano-but-not-vocal (first paragraph) #engraver.

#WTAF #Carus: #syllabic #slurs

Carus’ #vocal #scores almost never use the required syllabic slurs. This might be a house style, but my semi-substantiated theory is that they put an insufficiently educated #engraver on these scores who only knows how to engrave for piano, not for vocals.

Doing it inconsistently (e.g. here two of four in a single stave in a single system) makes you not look better, anyway.

Introducing WeCreat Vision -- The World's 1st Auto-Lifting Laser Engraver Cutter https://www.technews24h.com/2023/10/introducing-wecreat-vision-worlds-1st.html #technews24h #gadgets #laser #engraver #cutter

18 Sept 1662: Thomas Simon #engraver given a Royal Warrant #otd to design a gold angel coin [10s] with the accustomed Archangel Michael slaying the beast & on reverse, a man-of-war (BM)

Laser Engraver Uses All of the DVD Drive https://hackaday.com/2023/08/10/laser-engraver-uses-all-of-the-dvd-drive/ #opticaldrive #steppermotor #LaserHacks #carriage #dvddrive #engraver #arduino #gcode #laser #cnc

One of my back-burnered projects. I'm building a #CNC rotary #Carving and #Laser #Engraver. The design is called the #MPCNC. The plastic parts are #3Dprinted.

No-Laser CNC Engraver is Something New Under the Sun

Hooking up a laser to a CNC gantry isn't exactly an Earth-shattering innovation, but it does make for a useful tool. Even a cheap diode laser mounted to an old 3D printer can do engraving, marking, or even light-duty cutting. But what about a laser engraver without the laser? Can that be of any use?

Apparently, the answer is yes, if you can harness the power of the sun. That's what [Lucas] did with his solar-tracking CNC engraver, the build of which is shown in the video below. The idea is pretty simple -- mount a decent-sized magnifying lens where the laser optics would normally go on a laser engraver, and point the thing at the sun. But as usual, the devil is in the details. The sun has a nasty habit of moving across the sky during the day, or at least appearing to, so [Lucas] has to add a couple of extra degrees of freedom to a regular X-Y CNC rig to track the sun. His tracking sensor is simplicity itself -- four CdS photocells arranged with a pair of perpendicular shades, and an Arduino to drive the gimbals in the correct direction to keep all four sensors equally illuminated. He had some initial problems getting the jerkiness out of the control loop, but the tracker eventually kept the whole thing pointing right at the Sun.

So how does it work? Not bad, actually -- [Lucas] managed to burn some pretty detailed designs into a piece of wood using just the sun. He mentions adding a shutter to douse the cutting beam to allow raster patterns, but even better might be a servo-controlled iris diaphragm to modulate beam intensity and control for varying sun conditions. He might also check out this solar engraver we covered previously for some more ideas, too.

Thanks to [Zane Atkins] for the tip.

#cnchacks #cds #cnc #engraver #gantry #gimbal #solar #suntracker

Laser Z-Axis Table Comes Into Focus

Laser cutters and 3D printers are game-changing tools to have in the workshop. They make rapid prototyping or repairs to existing projects a breeze as they can churn out new parts with high precision in a very short amount of time. The flip side of that, though, is that they can require quite a bit of maintenance. [Timo] has learned this lesson over his years-long saga owning a laser cutter, although he has attempted to remedy most of the problems on his own, this time by building a Z-axis table on his own rather than buying an expensive commercial offering.

The Z-axis table is especially important for lasers because a precise distance from the lens to the workpiece is needed to ensure the beams's focal point is correctly positioned. Ensuring this distance is uniform over the entire bed can be a project all on its own. For this build, [Timo] started by building a simple table that allowed all four corners to be adjusted, but quickly moved on to a belt-driven solution that uses a stepper motor in order to adjust the entire workspace. The key to the build was learning about his specific laser's focal distance which he found experimentally by cutting a slot in an angled piece of wood and measuring the height where the cut was the cleanest.

After everything was built, [Timo] ended up with a Z-axis table that is easily adjustable to the specific height required by his laser. Having a laser cutter on hand to bootstrap this project definitely helped, and it also seems to be an improvement on any of the commercial offerings as well. This also illustrates a specific example of how a laser cutter may be among the best tools for prototyping parts and building one-off or custom tools of any sort.

#laserhacks #toolhacks #calibration #engraver #lasercutter #prototype #table #zaxis

Impressive Hack Turns Bolt Into Pneumatic Engraver

Did you ever see one of those videos that causes you to look at an everyday object in a new light? This is one of those videos (embedded below). And fortunately for us, there's a write-up to go along with it in case you don't always understand what's going on.

In this case, what's going on is that [AMbros Custom] is masterfully turning a stainless steel M20 bolt into a pneumatic engraving tool. Yeah, you read that correctly. But the most amazing thing about this hack is the minimum of tools used to do it. For one thing, there's not a lathe in sight -- [AMbros Custom] just chucked it into the drill or added a few nuts and clamped it in a vise.

So, how does it work? [AMbros Custom] hooks it up to a compressor, which causes the piston inside to go up and down, agitating the engraving bit. If you don't want to watch the video, there are a ton of build pictures in the write-up.

What else can you do with a bolt? If you have the tools, you can do plenty. You could even turn one into a secret cash stash for buying more large bolts.

#toolhacks #bolt #engraver #pneumatic

#letsroll

⚂ ⚁ ⚄ ⚄ ⚄→#grapple
⚁ ⚄ ⚂ ⚄ ⚁→#engraver
⚃ ⚁ ⚅ ⚁ ⚅→#outhouse
⚀ ⚄ ⚁ ⚀ ⚄→#catching
⚃ ⚃ ⚁ ⚅ ⚀→#perkiness
⚄ ⚃ ⚁ ⚄ ⚅→#shriek

grapple-engraver-outhouse-catching-perkiness-shriek

Roll your own @ https://www.eff.org/deeplinks/2016/07/new-wordlists-random-passphrases

#letsroll

⚄ ⚂ ⚀ ⚂ ⚃→#saturate
⚅ ⚂ ⚅ ⚅ ⚅→#ungreased
⚁ ⚅ ⚀ ⚁ ⚃→#example
⚂ ⚁ ⚃ ⚃ ⚅→#google
⚃ ⚀ ⚃ ⚀ ⚂→#mothproof
⚁ ⚄ ⚂ ⚄ ⚁→#engraver

saturate-ungreased-example-google-mothproof-engraver

Roll your own @ https://www.eff.org/deeplinks/2016/07/new-wordlists-random-passphrases