The new tools and techniques are now operating reliably. Behold:
The wide-view photo is pretty awful; taken in bad lighting, no flash. Ah, well.
Once split apart these will be 12″x44.” Probably going to go for $35 each, plus postage. Anyone interested?
After multiple rounds of iterating improved tools and techniques, I seem to have finally nailed the large format system (at least up to 24X36, haven’t gone bigger yet… 24X72 is coming). I plan on mailing off the first clients prints in a few days. He has suggested that I sell further copies of these prints to whoever wants them; I will discuss this a bit more, and if all are amenable, I’ll make them available. Until then I don’t want to divulge much other than to say it’s a copy of a prop-blueprint with modifications, not an aerospace blueprint.
The new system relies on UV lamps rather than sunlight. This took some time to get right; 4 lamps turned into 8. But the exposure time has dropped from something like 5 to 7 minutes of Utah summer daylight to 1 minute fifty seconds of consistent ultraviolet bombardment, day or night, sun or cloud.
I have been poking away at resuming cyanotype production using the new setup and the old transparency negatives. In order to go forward successfully, I need to be able to print on transparent film up to 2 feet wide by six long. I have encountered a lot of trouble here, which has baffled me. No print shops within a hundred miles seem to be able to do that. I put in an order to buy a roll of the film myself to keep at one of the local shops to print off on as needed… and was informed today that the roll will be delivered no sooner than late *February.* The manufacturers don’t have the raw materials for it.
What’s baffling is that when last I worked with this, circa 2017 or so, getting these sort of prints was no trouble whatsoever. I’d send the files to a local print shop in Utah and within a few days the job would be done at reasonable cost, no sweat. Now, though… it’s just not done. And it turns out there is a reason: up until about 5 years ago, it seems people were still regularly using diazo-type blueprinting for architectural and other industrial diagrams, which required this sort of film. But around five years ago, digital printing finally drove the last nail in diazotypes coffin. Without the market, there’s no supply.
So, hopefully the film will still arrive. But I have a customer who kinda wants his custom job, and that’s an unreasonable wait. So something new is being done. The customers line diagram is being printed not on thin transparent film, but on thin *plexiglas.* I can see this resulting in superior cyanotypes; the plexiglass will be vastly less prone to being anything other than dead flat, so the prints should be sharper. But plexi is *far* more expensive (two full size prints will cost as much as the entire roll of film that’s hopefully coming)… and when not in use, I can’t just roll it up and stick it in the corner. If I get 24 inch by 72 inch prints on these, not only is storing them going to be a problem, I can’t even fit them in my car. Grrr. These are problems that will be solved, but, grrr. Everything is always harder not only than it needs to be, but than it used to be.
Ran two prints today. The second one, the 4th test of the new setup, turned out to be pretty much there with just a few minor issues. The main issue I’m looking at now is getting proper coverage of the paper. For whatever reason, the cyanotyping fluid doesn’t really like the vellum paper and you get occasional blotchiness. This was a constant problem before, and was solved largely by tossing prints that weren’t up to code. Experiments will continue…
Todays test involved mounting the UV light bar to a crude frame and just letting it run, not waving it over the print like an idjit. As you can see most of it is pretty uniform; the end of the print that was furthest from the light bar wasn’t adequately exposed. However, come the weekend two more UV lights will arrive and will extend the reach.
The learning curve this time around is going *much* faster than the first time. This should probably not be a surprise, but it’s nice to see that things are trending quickly in the correct direction.
The cyanotype setup in Utah relied on direct sunlight to process the image. But the sun is difficult to find here in Illinois in December, so I decided to give technology a try. When I originally set up in 2014, this wasn’t really an option, but Amazon now has 100 watt LED UV light bars for only $30, so I decided to try one. The result is shown below:
Clearly, it looks terrible. But I judged it to be a rampaging success: this was achieved via the crude process of simply waving it over the paper and the transparency by hand for five minutes. My goal was not a pristine cyanotype, but proof that the UV actually worked to process the image. Where it shined adequately brightly for long enough, it really did the job. So I went ahead and ordered two more. I will build a framework to hold them over the print, boxed in with reflectors. Some experimentation to dial everything in, but at this point I’m quite optimistic that a technological solution will make this work reliably repeatably.
On the other hand: the UV light bars are Chinese. So… explosions? Sudden random changes in wavelength? Burst into flames? Microphones directly to the MSS? Who knows.
Bonus wisdom: if you put a rectangular piece of paper on the floor, a cat *will* occupy it.
I am going forward with the return to cyanotyping. I’m gathering the supplies needed to rebuild the capability; learning some lessons from before, this setup should be a little better and a little bigger. I should be able to make prints 24 inches by up to 7 feet. It’s a bit of a chore and certainly an expense, but the end results will, I hope, be an improvement over what I produced before.
As before, I plan on taking commissions. I don’t care what it is… aerospace diagrams, ships, architectural diagrams, sci-fi movie prop diagrams, gay wedding cake layouts… if it can be blueprinted, I’ll do it (for a fee). So if you have anything along those lines you’d like blueprinted in the old-school cyanotype fashion (white lines on a Prussian blue background), made by hand using chemicals, sunlight and effort rather than hitting “print,” let me know. Something I will try again is blueprinting onto linen. I ran off a few back in the day; interesting, but perhaps a bit niche.
Some years ago I produced a range of cyanotype blueprints of a number of aerospace subjects. The hardware needed for this was disposed of when I left Utah at the end of 2019, so starting again seemed unlikely. However, someone has expressed interest in a special commission. Rebuilding the hardware needed will be an expensive chore, and sadly getting the large format transparencies printed looks like it will be much more difficult here than it was in Utah. Nevertheless, at this point it looks probable that I will restore that capability sometime in the next few months, assuming one further detail can be ironed out.
You can see my now-defunct catalog here:
https://www.aerospaceprojectsreview.com/catalog/cyan.htm
When I get back to it I will probably focus on the larger format stuff rather than the smaller prints. I have plans on how to improve upon the prior hardware to make things work better and more efficiently. If there are any of the former large format prints you’d like to see returned to production, or you have any prints you’d like to see, let me know. And once this is up and running I plan on trying to take commissions, working with a local print shop to find customers interested in this somewhat unusual and certainly obsolete form of art.
If you have a diagram you’d like me to turn into a cyanotype, contact me. Commissions aren’t going to be restricted to aerospace subjects; naval, architectural, movie props, whatever you’ve got, so long as it *can* be blueprinted, once things are in place I should be able to do it. 
These auctions for some of my cyanotype blueprints end tomorrow. Most have no bids, so if you want ’em they should go for cheap. These are some of the BIG blueprints.
https://www.ebay.com/itm/Space-Launch-System-1-72-scale-Diagram-Cyanotype-Blueprint/253278318585
https://www.ebay.com/itm/Large-Cyanotype-Blueprint-of-the-Consolidated-B-36-Bomber/253278304259
https://www.ebay.com/itm/Lockheed-Skunk-Works-hypersonic-X-24C-L301-cyanotype-blueprint/253278262083
I’ve put five of my large format cyanotypes on ebay, with starting bids far lower than the usual selling price.
https://www.ebay.com/itm/Space-Launch-System-1-72-scale-Diagram-Cyanotype-Blueprint/253278318585
https://www.ebay.com/itm/Large-Cyanotype-Blueprint-of-the-Consolidated-B-36-Bomber/253278304259
https://www.ebay.com/itm/Lockheed-Skunk-Works-hypersonic-X-24C-L301-cyanotype-blueprint/253278262083