JacobCoffinWrites

Hi, I've been looking for a chance to get a huge fresnel lens from a rear projector TV for awhile and I finally found one junked (and rained on) on garbage day and managed to get the screen off before the truck took it.

The problem is that the screen seems to be different in composition from others I've seen online. There was one dark tinted, but otherwise clear plastic sheet, and an opaque one that might be a fresnel lens with a diffuser layer glued on. The TV was a Mitsubishi which are supposed to be a good source for fresnel lenses but the overall design and wide aspect ratio of the screen suggest it was a newer model. It definitely did have a projector inside (a single one with a sort of bubble dome on it).

I'm wondering if anyone knows more about these tvs, or has any suggestions for getting the two layers apart - the thin sheet seems to be both adhered very well and brittle - it only pries off in tiny chunks. I'm thinking about using a heat gun, I don't know if there's some other truck to this I should know.

Thanks very much for any advice!

It appears to be a large pink cat surrounded by hearts holding some flowers in one paw

I've got a coat I wore every winter for like eight years but didn't use this fall because a rain of macroplastics would follow me wherever I go. I can strip the pleather, flaking-paint material off to replace it with something but the fabric underneath is sort of thin and stretchy so I'd need to find something that'll help seal it against wind and rain again. I know they sell pleather paint but reviews said it's short lived or meant for patching lesser damage. It's probably a long shot but is there another option for doing the whole outside of the coat?

Otherwise it's still in great shape.

Hi, I hope this post/question is okay - I'm doing some art that includes various radio antennas and I'd really like to run them past someone who knows more than I do to make sure they look okay.

I'm working on location art for a solarpunk TTRPG campaign and am doing a scene for a somewhat old fashioned (in this setting), heavily automated farm. The guy who lives here does a lot of the work maintaining a meshnet in the mostly-abandoned town where the campaign takes place. I figure he's also sort of generally a tinkerer and has probably amassed a decent assortment of old tech.

The last time I was working on a scene with antennas I asked the folks over on r/hamradio for advice and they were super helpful so I reused a lot of the antennas from before, and tried to scale them to match that scene and to photographs I've seen, but I'm definitely not knowledgeable on this stuff and am happy to make changes to get it right.

As before, I really just want to make sure it doesn't look offensively dumb to folks in the ham radio scene, and if you have any recommendations for antennas you'd like to see or that would say something interesting, I'd be happy to include them. Thanks for any advice you feel like giving!

We recently switched to using a Linux Mint laptop with an adblocker for our streaming (while also cancelling a bunch of services). A friend at the recycling center set it aside for me - the screen was irreparably smashed but it was otherwise quite a nice little laptop. Replacement screens were too expensive so I carefully removed the broken one entirely so it'd default to the HDMI port and then set it up as a quick media center (we watch a lot of YouTube and the ads were driving me crazy, I might switch to a more purpose-built OS eventually). The TV is one I pulled from an ewaste bin to replace my previous ewaste TV after it finally gave up. It has a thin line through one edge of the screen occasionally but is otherwise fine. I also recently found a perfectly good wireless trackball mouse and a Bluetooth keyboard in the same bin where I got the TV (came with that other mouse). The bin even supplied HDMI cables. The whole thing is perched on a particle board TV stand I found like a decade ago when the college kids move out.

I stumbled on this brief article while looking through this solarpunk blog. On the farm I worked at growing up, all but one of our greenhouses were plastic stretched over a metal frame. We replaced the plastic fairly often (I'm not sure how often - I know I helped do it more than once, but probably not for the same greenhouse) due to sun and wind damage. The old plastic was pretty useless at that point unless you needed a dropcloth with some cracks in it, so it usually went in the dumpster and then to our local landfill.

It sounds like these folks soaked some sort of fabric in beeswax, and I'm curious how well that holds up. Certainly it'll need replacing at some point, but so did the plastic, and at least the textile and wax can be composted eventually. Does anyone have any experience with this?

This is a little different from my other photobashes in that this one can’t really pass as a postcard. I ended up having so many things to include in the topic of flood-compatible cities that the only way to fit them all was to keep expanding the canvas. I think I have enough for a second picture (and possibly a third), but we’ll get to what’s missing in a moment.

So awhile back, I stumbled on to this discussion on reddit about what solarpunk might look like in a wetland area (and what it'd mean for cities built in wetlands). I very much believe that solarpunk will look radically different based on location, with infrastructure, routines, fashion, etc, being carefully tailored to fit climate, local weather, and the available materials, so this really caught my attention.

That discussion lead to this one, and this one, then this one as well as this conversation back over there plus several good chats on the Fully Automated and Solarpunk Hub discords.

I received a ton of awesome input which I genuinely couldn’t have made this without. Thank you! Most of the ideas here came from those talks. Even when people disagreed with each others’ suggestions, I tried to include them in the scene if I could make them fit.

The basic idea is for this to be a city that expects to be flooded regularly. One where, if the water rises a few feet seasonally, everything stays basically the same, and if a huge storm rolls in and swamps the whole area, people grumble about it, but can mostly still go about their day (using things like elevated walkways). The lower portions of buildings are used for third place activities that can be packed up and removed when forecasts predict bad weather (like marketplaces) or which use sturdy, permanent structures which can be hosed clean later.

There’s an argument to be made that the best answer to building cities in swamps is the simplest: don’t do it. And if you’ve failed that step, then you shouldn’t rebuild when whatever you build inevitably gets flooded.

I think there’s a lot of reasons to push back on that. Most major cities are already built on waterways or on the coasts due to the value of those locations for shipping and industry. Some are already below seal level, others are likely to be in the future as climate change worsens. These places house millions of people, they represent home, historical legacies, and preserving them helps preserve the cultures and communities of the people who live there. Lots of cities are looking for answers to rising water, and I’d love to see what solarpunk versions look like.

Sponge city tactics came up a lot in our discussions but we struggled to find ones that fit for a city (like New Orleans) which are at least partially located below sea level. If I expand the image to the left, I think I can definitely include a few, but generally, the water needs somewhere to go.

That said, I think this scene fits a tight shot of a much larger take on sponge city tactics of slowing water and absorbing it where possible.

Our current society has spent a lot of resources on straightening rivers for shipping and building dams and levees to shunt extra water downstream, to make it the next town’s problem, rather than suffer floods themselves. Farmers don’t want their fields washed out or polluted with debris so they build more levees and so on and so forth.

I think a solarpunk civilization might accept on some level that rivers are going to meander, they’re going to rise seasonally, and they’re going to flood the flood plains they’ve always washed over, and it might build with those expectations in mind. A solarpunk setting might adjust itself to coexist with the weather and floods rather than use huge infrastructure projects to try to keep them away.

The admittedly thin backstory I’ve got in mind is that this was a city which frequently flooded, and where some of its lowest areas (possibly mostly abandoned already due to uninsured damages and unlivable conditions near the collapse) were ceded to the water but not surrendered altogether. People built some structures higher than the water is likely to reach, and everywhere else, they float on it in boats, float houses, or even large rafts which contain small neighborhoods. They farm locally using floating gardens, hydroponics, Chinampas, and more. This isn’t a pristine wetland that’s been colonized, but a flooded neighborhood which has been partially rewilded.

I pulled in a few different living-with-water concepts in for this one:

• The lifted buildings are an upscaled version of the lifted houses you can find all along the US Gulf Coast, intended to survive storm surges and floods during hurricanes.
• I based the covered upper walkway on the iron lace balconies found on some buildings in the New Orleans French Quarter. It’s not quite the ‘correct’ use of the design, since they don’t traditionally span from building to building, but I thought it’d be a nice reference. The goal here is that if the area really floods, and the ground level is unsafe to traverse, people still have a way to get around. For safety purposes, I figure each building needs a ladder on each road to access the upper level in an emergency. For accessibility, I included frequent, standardized elevators and 15 degree ramps.
• I used this amphibious bus design because it looked more municipal than the DUKW style duckboats many cities have for recreational purposes. Credit to Cromlyngames for suggesting this idea (and then making this 3d model about it). I suspect the amphibious design would be harder to maintain than a normal bus because of the sealed hull, but perhaps some of the efficiencies and practice that come with a larger, standardized fleet would help.
• Dutch-style floating houses (these exist all over the world but I referenced dutch ones while making this scene). These are just meant to be towed into place and parked. Unlike the houseboats which are more boat than house and can travel as they want.
• A Bangkok-style water bus – the idea is that the flooded zone is likely somewhat shallow, with deeper waterways intended for transit between neighborhoods of floating houses, large rafts supporting small neighborhoods, and through rivers and canals in the dryer parts of the city. If I do another scene, I’ll try to include a transfer station where passengers can switch between boat and an elevated train.
• Waterways with restored eelgrass for manatees. I wanted to show some of the work that’s been done restoring rivers in the US south.
• Chinampa agricultural system (farming on artificial islands) this is a pretty ancient farming practice from Mexico and Central America, which is still in use in some areas, and I’m still learning about it. I’ve done my best to get the scale and composition of the design correct. Some of the trees might be a bit overlarge, but they wouldn’t be planted very densely.

Other notes/elements included:

• There’s a Savonius wind turbine attached to one of the dolphins (poles) for the dock. I imagine this probably isn’t supposed to be there, since it could get in the way during a high flood, but perhaps there’s not much enforcement or its the subject of a disagreement.
• Awnings and porches to shade windows and balconies and buildings. The simple solutions work.
• The hospital in the background would need to be able to operate during a flood, and to have water access (possibly via canals) so that people with only boats can access it quickly, in addition to road access.
• The climbing wall probably isn’t ideal, as you’d want open spaces between the pillars if the flood will have a current. This was kind of an art decision - I needed a type of tall, narrow third place to include that would demonstrate its use even with the bus in the way and that seemed like the best option I could think of. Climbing walls are often made with wood frames and plywood – this one would have to be able to survive submersion, so perhaps it’s made from thick sections of recycled plastic or something similar. My other plan was just some trees, to show that it was a park, but that wasn’t as clear.

Speaking of third places, here’s some other ideas we had for third places you could have under these buildings. Presented in no particular order:

• Tide pools and natural landscape features
• Parks
• Dog Parks
• Meeting rooms
• Lecture spots (could double as a bring-your-own-movie movie theater)
• Squash courts
• Playground (depending on the design)
• Planetarium?
• Speaker’s corners
• Booths for food trucks or downstairs seating for a lifted cafeteria
• Parkour course
• Roller rink
• Laser tag/paintball arena
• Fresh water reserve tanks (firefighting, heat sinks, municipal cleaning as well as last reserve drinking water post major floods
• Possibly storage for flood-tolerant stuff like scaffolding

Things I’d like to include next time:

• Floating neighborhoods in the style of the floating islands of the Uros on Lake Titicaca (this would take a fair bit of space and a lot more reading)
• A transfer station where passengers can switch between boat and an elevated train
• Amphibious emergency vehicles

This image, like all the Postcards from a Solarpunk Future, is CC-BY, use it how you like.

Hi, I just wanted to say thanks for all your help on my previous question planning art of a more flood-compatible city! I've tried to include everyone's suggestions from last time, plus everything from here, and discussions on reddit and discord.

I don't plan to clutter up the community with any drafts after this one, but I was hoping to get one more pass with my current sketch since its based mostly on your ideas. Is there anything you'd like to see added or changed in a depiction of a city that's built to flood? Thanks again!

Hi, I've had some good discussions here in the past, so I thought I'd reach out with an idea for a resource I'd like to try to put together for solarpunk writers and artists.

I was talking with A.E. Marling about a story he's working on, and one of the things he was looking for was uses for old cars.

I think the obvious answer you'll get from solarpunks (aside for limited use where it makes sense) is to melt them down for your society's steel manufacturing needs - electric arc furnace smelters running off a green grid, recycling, are about as close to zero emission steel as you're likely to get, and the metal is already refined so I think you could get pretty tight control over the quality on the output.

But I think reuse offers some much more interesting opportunities. I'm only just starting to learn about fixing cars, but I've already been struck by the fact that at least some parts in cars can go into other things. For example, it looks like certain old alternators can be used to generate a wide range of amperage and voltage, suitable for different needs, including welding: https://diysolarforum.com/threads/diy-low-cost-generator-from-vehicle-alternator-alternating-generator.1843/ so perhaps one could be hooked by belts (adjusting speed) to a waterwheel or something?

I feel like a solarpunk society with a really strong library economy might start cataloguing parts of more complicated machines (even salvaged from machines like cars).

And looking for parts commonalities and alternative uses strikes me as a really cool step towards building an open-source manufacturing sphere. Perhaps starting with a database of hardware/parts so they could be identified and repurposed, and alternatives identified.

So the actual proposal:

I'd like to try and put together a list of common car parts which can be reasonably used in other (more solarpunk) contexts. This doesn't have to be specific down to the model number or include a how-to guide, (though I recognize that some reuses might only be possible with a specific model) just something solarpunk writers could casually drop into a description of a room or workshop, or an artist could put in the background of a scene. Something that shows that this isn't a scratch-built future, but that they're repurposing stuff where they can. Think of all the weird ways postapoclyptic movies dress the sets with misused items from the present - we could offer something like that to solarpunk, but grounded in at least some practicality. If you have any suggestions, I'd love to hear them.

Thanks!

edit: I've built out a list and it's located over here: https://slrpnk.net/post/13032570

I've been thinking about trying to depict some of the ideas from this conversation: https://slrpnk.net/post/12735795, using a sort of flat, diagram-like style similar to this old photobash:

Though a bit more complex. The obvious answer is 'don't build cities in swamps' but we already have a bunch of them, and though I don't live there I recognize that they have a lot of unique cultural and historical value and are peoples' homes, so I'm interested in what a solarpunk-adapted version of these would look like.

At the same time, I know basically nothing about New Orleans or similar areas, have no background in civil engineering, and no qualifications to make this except for the capability to do so using an old version of GIMP. So I'd absolutely love to identify issues, places to make improvements, and things that are missing now rather than once I've spent days chopping up images and finessing them into something coherent.

So what'd I get wrong? What's unworkable, out of scale, or dangerous? What style of buildings or cultural touchstones would you like to see? What kind of plants are missing?

This is basically my most traditional bookbinding project. I used regular fabric cloth for the cover, and followed the traditional steps. The interesting (to me) change is the use of a CO2 laser cutter to mark the fabric. Here's the steps to making it:

I think it's fair to say that this book is extremely rare. The author has told me that the one physical copy I've made is the only one in the world, aside from an 'ugly stapled proof [he has] in a drawer somewhere.' The book was released on patreon as serialized fiction, with each of the six sections being made available as early drafts to a certain tier. The plan was that he'd put them up briefly, take them down again, then compile the drafts and eventually release a full published version. For life-happened reasons, the last step never got done (though the author was kind enough to repost the six sections on a discord channel when I asked).

Just the same, it was one of my all-time favorite stories, so if it wasn't likely to end up somewhere I could buy it, I was at least going to make a copy of my own.

So I took the six pdfs and started editing them using whichever online tools seemed like they'd do the best job. I started by cropping the files so they'd fit the correct aspect ratio for 8.5x11" letter paper folded in half, but started getting fancier as I went. I removed pages of bonus content from the back of each one so it'd flow better as a book. I merged them all together into one file (to reduce the number of mid-book blank pages from turning it into folio signatures). I even added a second set of page numbers to the bottom because the ones in the top right restarted in every section. I manually added some blank pages front and back.

By the time I was done, I had something to feed into https://momijizukamori.github.io/bookbinder-js/

I used that to create letter page folio signatures (with sets of 4 and 3 pages per signature). Now I had something I could actually print. We did so on a regular office photocoppier, and I can't recommend printing each signature separately and organizing them with paperclips enough. I would have lost my mind trying to sort them otherwise).

We start off the actual bookbinding in a pretty familiar way, taking each signature, folding each page of it in half with the bone folder, nesting them, and adding that signature to the stack.

Then I used my template from the previous bookbinding project to punch holes through each signature. One really nice thing about not having to trim whitespace from my pages is that the overall page size (and thus most dimensions of the cover except the spine) will remain the same no matter what is printed on the page or which printer I use. So I can reuse things like this template.

Here's my template with its measurements in case you want to reference it:

Eventually this left a nice stack of signatures ready to sew together:

As before, I sewed it together using waxed thread, following the Penrose Press Pretty Perfect Paperback Guide. I know there are a bunch of ways to do this, but I quite like this technique.

The next step is to clamp and glue the bookblock together. My clamp is pretty crude, it's just a 2x4' screwed to a piece of particleboard, with a couple ragged sheets of wax paper keeping the book from gluing to the clamp.

The goal is to get it as tightly pressed as possible while keeping the book block nice and square.

I didn't take a picture of this step for this project, so here's one from the last book. Note how the signatures are jumbled along the edge. I've gotten much better about lining them up recently.

I usually use my finger to work the glue into the gaps these days, it's faster and makes less mess than the brush. I think it gets into the gaps better too. I do three coats of glue on the spine. For hardcovers like this one, I then glue on a strip of mull or cheesecloth which is a couple inches wider than the spine on either side (front to back), and like an inch or so shorter than the top of the spine (heightwise).

Then I glue on a strip of watercolor paper (it's supposed to be manila paper but I don't have that).

Now it's time to start on the actual cover. I size the bookboard so it'll overlap the book block by 3mm on the top, bottom, and open edge. You're supposed to make it 3mm wider for that overhang, but then remove 6mm for the hinge by the spine (so that's actually -3mm) but I haven't had good luck with that, the open edge always seemed too close to the book block, so I just leave it the same width as the book block and slide it out 6mm. Somehow that works.

To get the spine width, you're supposed to measure the spine of the book plus one thickness of bookboard, but my spines often come out a bit thicker than the rest of the book so I'm sure about that guidance either.

That's the basic layout but I wanted the color to be darker. I was reusing fabric I bought for a halloween costume, but I was picturing more of a maroon color. I didn't want to buy new cloth when I had a bunch on hand I wasn't using, so I decided to dye this piece.

I started off trying to use some very old, expired, dark roast, decaf coffee, but the cloth just wouldn't take the stain, likely due to not being natural fibers. So instead I switched to using some old rit dye I had. I took lots of pictures for the coffee and almost none for the rit dye, so just pretend it's slightly blacker and in a different pot. And that I'm using a stick instead of a wooden spoon.

The nice thing is the rit dye isn't really going to go bad, so I just poured it from the old pot I used (we stopped cooking with it because the nonstick lining had started to flake) into an old jug. I've actually reused it since and it worked fine!

After a lot of hassle, the rit dye finally made the difference.

I ironed the cloth to smooth it out:

And glued the bookboard down onto it. Make sure the gaps between the spine and the front and back is 6mm and that they're square/in line with one another.

The next step is to trim 45s off the corners (leave one bookboard's thickness between the corner of the bookboard and the cut edge) and to clean up the edges.

Then I applied glue to the bookcloth and bookboard and wrapped each edge over:

My attempts at this look kinda crude, but you don't really see this once the endpapers are glued on, so it doesn't bother me yet. Someday I'll probably look back on it and wonder why I thought this was good enough, but for now, it works just fine.

(You might notice that I glued the cut-off triangles to a scrap of bookboard, that'll come into play later)

When you apply glue to the endpapers they'll kind of liquify a little and stretch, so trim a couple mm off the leading/open edge. It'll look better.

Okay, final assembly. This is where it all comes together or goes horribly wrong.

To do this you place the bookblock inside the cover and get it positioned how you want it. Open up the cover again, slide a piece of wax paper and a piece of scrap paper in between the topmost endpaper and whatever's underneath it. Make sure the scrap paper is on top.

Get your brush soaked with glue and then dab it on some scrap until its not really soaking where it hits. Use little vertical jabbing motions (Psycho style) to stipple the top paper so its completely glued. Apply glue under the mull/cheesecloth, then put the cloth in place, then apply glue on top of that.

When there's a good layer of glue everywhere take a deep breath and close the cover onto the page. Open it just a crack, look for wrinkles and smooth them out as best you can. If you open it too far the paper will pull away from the cover.

When you think you've got it as good as it's going to get, remove the scrap paper but leave the wax paper. Close the book, put something heavy on it, and hope for the best.

When its dry, flip it over and repeat the whole process.

We've now hit all the usual steps (except the end ribbon thing but I don't see the point of that). I was honestly very pleased with the results.

But lets get fancy with it. I had some time on the CO2 laser cutter at my local makerspace, and I'd seen online that people had managed to etch bookcloth, so I wanted to try finishing things that way.

We started with some tests, on very low power and working our way up. We weren't sure how well the poly-blend fabric would handle the laser, or what kind of damage it would cause.

We started with the settings for printer paper (95 speed, 10% power) and worked up by 5% increments, finding that the quality improved each time.

Once that was done, I banged out a quick cover layout by measuring the book, drawing a vector rectangle in those dimensions, and positioning the raster title in the middle.

We ran it with the lid open (runs as a test with just a visible dot) and made sure the rectangle followed the edges of the book.

I had to prop the cover open a little so it'd be more level (I used one of the little connector things we use to pin warped things to the work surface). Then it was just a matter of hoping for the best and rerunning the file with the lid closed.

It was kinda high stakes but I'm very pleased with how it tuned out.

#diy #bookbinding #lasercutter #etching

I recently started making solarpunk postcards again, and I had a lot of fun with a quick scene of a solarpunk cargo ship (a steel-hulled, four-masted barque) in a storm. I'd like to do more but don't yet have any strong points to make or designs I'm excited to feature.

So what would you like to see? What scene is missing from solarpunk art of humans interacting with oceans, rivers, lakes, canals? What weird idea, or old, practical design should make a comeback?

I can't promise that I'll make everything but I really do try to include as many suggestions as possible.

So far suggestions from reddit and discord have included:

• Showing more of the mooring ropes and foundations festooned with underwater life (perhaps in another storm or low tide?)
• Boats or ships with soft wing sails which are apparently good (in theory) when it comes to performance as they maintain their shape regardless of wind conditions.
• edit to add: a clipper ship

I'll state up front that I'm not a nautical kinda guy. I like to pick up terminology and learn but I've never sailed anything larger than a sunfish and I see the ocean maybe once every five years. So feel free to spell out practical considerations and realism stuff because I probably won't think of it.

And thanks!