jmtd → Jonathan Dowland's Weblog
Below are the five most recent posts in my weblog.
- Digital gardening, posted on
- Ladytron, posted on
- My Prusa Mini+ is broken, posted on
- debian swirl font glyph, posted on
- More lava lamps, posted on
You can also see a reverse-chronological list of all posts, dating back to 1999.
I was reading a post on Alex Chan's website1 that referenced the concept of digital gardens, a concept/analogy for organising information which dates back to the 90s. This old concept is getting new traction today by contrasting the approach with "endless stream" as used and abused by social media, but also how blogs are typically presented.
This site, my homepage, has a blog, and that's the bit that most people who interact with the site will experience. Partly, because it's the bit that gets syndicated out: via feeds; on Planet Debian and downstream from it; once upon a time on Twitter; nowadays on the Fediverse.
However there's more to my homepage than that. The rest of it may be of little interest to anyone beside me, but it's useful to me, at least. So I may switch focus a little bit from mainly writing blog posts, and tend to the rest of the garden a bit more.
Some recent seeding and pruning: Recently my guest status at Newcastle University came up for renewal, so I wrote down my goals in the Historic Computing Committee for the next year or so, and put them here: nuhcc. I've also been pondering what I'm up to in Debian at the moment, so took some time to add my current projects to that page.
- I'm reminded that I should really publish a "blog roll" of cool blogs I'm following at the moment, of which Alex Chan's is one.↩
I saw Ladytron perform in Digital, Newcastle last night. The last time I saw them was, I think, at the same venue, 18 years ago. Time flies!
Back in the day (perhaps their heyday, perhaps not!) Ladytron ploughed a particular sonic furrow and did it very well. Going into the gig I had set my expectations that, should they play just these hits, I'd have a good time.
The gig exceeded my expectations. The setlist very much did not lean into their best-known period: the more recent few albums were very well represented and to me this felt very confident. The lead singer, Helen Marnie, demonstrated some excellent range, particularly on some of the new songs. Daniel Hunt did a lot of backing vocals and they were really complementary to Helen's: underscoring but not overpowering. I enjoyed nerding out watching Mira Ayoro's excellent wrangling of her Korg MS-20. One highlight was an encore performance of Light & Magic, which was arguably the "alternate version" as available on the expanded versions of that album or the Remixed and Rare companion.
I thought I'd try to put together a 5-track playlist for a friend who attended the gig but isn't super familiar with them. As usual this is hard. I'm going to avoid the obvious hits, try to represent their whole career and try to ensure the current trio each get a vocal turn in the selection.
They actually released their latest album, Paradises, yesterday as well. One track from it is in the list below.
(If you can't see anything, the bandcamp embeds have been stripped out by whatever you are viewing this with)
Oh dear! I've been suffering print reliability issues on my Prusa Mini+ for quite a while, roughly since they introduced Input Shaping (although that might not be the culprit). Whilst trying different things to resolve it, I managed to sheer off the brass nozzle within the heatblock. I now have half the nozzle stuck in the ratchet spanner, and half in the heatblock.
What to do next?
I can try and get the nozzle out of the heatblock, by screwing something into it or using an extraction screw. I've been warned this could be messy and dangerous. Less risky might be to change out the whole heatblock. They don't seem to be expensive.
Back in FOSDEM I asked the Prusa folks what cool projects I could do with the Mini+… they looked a little blank (I think the Mini+ is now a somewhat forgotten product) but they did say somebody had managed to port over the "Nextruder" from the more recent Prusa XL/MK4. I could take a look at that.
Another thing I've always wanted to explore (although I had intended it to be temporary/reversible) was converting it into a plotter, for plotter art.
Somehow this is my first 3d printing blog post in over a year. The printables.com feed I linked to is still going, I'm happy to report (as is the one I wrote but didn't publish, slightly more surprisingly)
When I wrote about the redhat logo in a shell prompt, a commenter said it would be nice to achieve something similar for Debian, and suggested "🍥" (U+1F365 FISH CAKE WITH SWIRL DESIGN) which, in some renderings, looks to have a red swirl on top. This is not bad, but I thought we could do better.
On Apple systems, the character "" (U+F8FF) displays as the corporate
Apple logo. That particular unicode code point is reserved: systems are free
to use it for something private and internal, but other systems won't use it
for the same thing. So if an Apple user tries to send a document with that
character in it to someone else, they won't see the Apple unless they are also
viewing it on an Apple computer. (Some folks use it for Klingon).
Here's a font that maps the Debian swirl to the same code point. It's covered by the Debian logo license terms.
Nerd Font maps the Debian swirl logo to codepoints e77d, f306, ebc5 and
f08da (all of which are also in the Private Use Area). I've gone ahead and mapped
it to all those points but the last one (simply because I couldn't find it in FontForge.)
Note that, unless your recipients have this font, or the Nerd Font, or similar set up, they aren't going to see the swirl. But enjoy it for private use. Getting your system to actually use the font is, I'm afraid, left as an exercise for the reader (but feel free to leave comments)
Thanks to mirabilos for chatting to me about this back in 2019. It's taken me that long to get this blog post out of draft!
Mathmos had a sale on spare Lava lamp bottles around Christmas, so I bought a couple of new-to-me colour combinations.
The lamp I have came with orange wax in purple liquid, which gives a strong red glow in a dark room. I bought blue wax in purple liquid, which I think looks fantastic and works really nicely with my Rob Sheridan print.
The other one I bought was pink in clear, which is nice, but I think the coloured liquids add a lot to the tone of lighting in a room.
Recently, UK vid-blogger Techmoan did some really nice videos about Mathmos lava lamps: Best Lava Lamp? and LAVA LAMPS Giant, Mini & Neo.
Older posts are available on the all posts page.





