johnsmachines

machines which I have made, am making, or intend to make, and some other stuff. If you find this site interesting, please leave a comment. I read every comment and respond to most. n.b. There is a list of my first 800 posts in my post of 17 June 2021, titled "800 Posts"

Tag: Ships of Scale

“The Seventy Four Gun Ship” by Jean Boudriot

This is not a book review.

The 4 books listed in the title are so superb, that I feel humble just turning the pages and reading the text here and there. A similar reaction to when I bought Encyclopaedia Britannica 40 something years ago.

I found out about these books almost a year ago, and since then I have been searching for second hand copies because they are expensive. I remember spending similar amounts on medical text books, but found it hard to justify the cost of these sailing ship books for a hobby.

I read a review of the French version Vol1 by master ship modeller Olha Batchvarov… (https://youtu.be/D3Pd2IXN5Cs?si=JL7FphWLPe2K1asv) and my search intensified. I asked my local second hand book seller to let me know if he ever found a set, but no luck. I often searched Ebay but never saw anything in Australia, and sets in USA had asking prices up to $USD4500!! New sets from Ancre, France are touching $aud1000 plus postage (around $aud200), but recently an enquiry to them elicited a question “would I be interested in a second hand set?” Would I ever?! It was still pricey, but after thinking it over for a couple of weeks, and having sold some stuff I no longer needed, and getting agreement from SWMBO, I placed the order. I am guessing that Trump’s tariffs have inflated the crazy US prices.

The 10kg carton arrived several weeks later.

The books were actually new! Some still in their original sealed packaging. One volume showed some slight evidence of aging paper, and all volumes were slightly damaged which I guess is why they were categorized as second hand. The hard cover corners were crumpled. That would not have been acceptable in a brand new set, and I guess that caused them to be not sold as new by the book seller, Ancre(fr). I checked that they were the version in English.

I would have accepted the damage as part of second hand books, so I was not too perturbed in view of the price reduction. I am sure that the damage was old, because the books were well packaged in bubble wrap for the air freight to Australia.

At first the crumpled corners looked permanent, but then I decided to have a go at improving the situation. No before photos unfortunately.

I dampened the corners with a water soaked and wrung out cloth . Then, one at a time, clamped the corners with plastic encased wood working G cramps, and left them for a couple of hours. The crumples improved. And the squareness and stiffness of the corners is almost back to normal. There is no decolourisation apart from ageing effects. Not noticed (or mentioned) by colleagues to whom the books have been shown, with the dust-cover in place.

Not too bad with the dust-covers in place!
Without the dust covers. This is the worst one. But it is stiff and the shape is almost normal.

I do not intend to review these books. If you are interested, check the Batchvarov review mentioned above. I will just say that the books are a pleasure to handle. a pleasure to read the expert conversational writing, and illuminating to view the many perspective and plan drawings.

One other thing to mention, is that the books are about the full size, original 1780 ships. Although useful, even essential to modellers of 74 gun ships, extra plans for the modeller from Ancre (fr) are probably essential.

The author, Jean Boudriot, was a French architect, who had a passionate interest in French sailing ships. He wrote many books about the history and construction of sailing ships, but this set is considered his master work. He chose the 74 gun ship for this, because it was built at the peak of French naval ship building, when the French navy equaled the strength of the British navy, and when French designed and built warships were generally considered the best in the world, even by the British. That was around 1780. The British saw the value of the 74 gun ships, which were 3rd rates, because they sat in a “sweet spot” of gun power, speed and manoeuvrability, and both navies built large numbers of them. About 200 vessels of the type in each navy 1750-1800.

Boudriot’s architectural drawing skills are apparent in the profuse drawings, many in 3D perspective.

Boudriot’s perspective drawings are invaluable for coming to grips with the complexities of these ships, particularly hull framing and rigging.
Many of the drawings show details which would otherwise be invisible and unknown. Some of the iron fasteners holding the massive timbers of the keel and stem together are shown here. Up to 2 meters long and 50mm diameter. Boudriot’s research was extensive.

Volume 1 Hull Construction 166pp, 16 plates (fold out plans), 106 figures.

Volume 2 Fitting Out the Hull 220pp, 26 plates, 107 figures.

Volume 3 Sails, Rigging 289pp 13 plates, 134 figures.

Volume 4 Shiphandling 394pp 17 plates, 167 figures.

Expert ship modellers have used these books to produce magnificent models, but there are also opinions that prospective modellers (like me) should also purchase modellers plans from Ancre (fr) which are based on the Boudriot plans. Those modellers plans are available in 1:72 and 1:48 scale. I chose the 1:72 scale, in consideration of the final size of the ship and case.

74 gun ship modelled by master Russian modeller D Shevelev. See more photographs of this incredible model at https://shipsofscale.com/sosforums/threads/iv-open-cup-of-kyiv-2013.15534/

CNC Seizing Serving Machine -2.

IT WORKS!!

DEMO AT THE NEXT GSMEE MEETING JAN 8.

One of the first attempts at serving a low quality home made 2mm white rope, about 600mm long. It took approx 2 minutes. Not even post serving treatment with dilute PVA glue, which would normally be required.
This magnified picture shows 1mm diameter rope being served. Sorry about the awful picture, but I think that it does show the regularity and tightness of the serving. The vertical and oblique stripes are the 0.2mm 3D print lines at high magnification.

Next Project- A Mini CNC Milling Machine

I am so impressed with my new Qidi 3D printer (see previous post), that I am going to use it to attempt to make a CNC milling machine. The CNC “mini” milling machine was designed, and a prototype made, by my colleague and friend, Stuart Tankard, several years ago. So, the expert work has already been done.

This is Stuart and his several years old, self designed and made, mini CNC milling machine. I have seen it in action, and while it is small, it works very well. The complex structural components are 3d printed. The Y axis base, X and Z axis plates are milled. The stepper motors, electronic components, bearings, acme screws and nuts etc are available on Ebay and AliExpress. The main spindle is a Proxxon grinder/drill. Except for the 3D printer, I think that the mini mill, rotary CNC indexer, and vacuum plate will be able to be made for around $AUD500-600. I already have a licence for Mach3.

Stuart has very generously provided me with the mill plans, and stl files for 3D printing. And I hope that he will be available for advice when required.

I intend to detail the build on johnsmachines.com, and possibly on Ships of Scale. SOS because the initial stimulus came from my need for accurate drilling of parts on my USS Constitution model. The CNC milling will also be useful for machining small ship parts in wood, and soft metals. The machining limits are X 156mm, Y 96mm, Z 120mm.

The most expensive component is the Proxxon which cost $AUD250. I could have used a much less expensive Dremel but the general quality and collet system on the Proxxon is far superior. I have ordered some of the other components such as four Nema 17 steppers and six 8mm hard steel shafts, and will publish a tally of the exact costs as I progress.

So, if this project is of interest to you, please follow on. If it works out OK, maybe Stuart will make the plans available online.

And I am waiting for components to arrive before I can start assembling the rope serving/seizing machine. Yes… I do enjoy making machines.