Building the french suffren sna

[Albacore 569]

Parts finally begins to accumulate.

Left to right, the stern for stern planes and pump jet. Suffren sail sanded primed, and masts made months ago added for trial fit. All set. Row of small parts. 4 stern planes, two new bow planes, and two pairs of bow plane covers. Pump jet propulsor painted a Rustolrum satin finish 'Champagne' color. The print was sanded lightly, balanced (if any) rattle can painted with a gloss black and several days later the champagne coat.

Rattle cans colors have a wider variety if they are available locally. These paints are more durable for a operating model.

Not sure if the French propulsor is a bronze material color or the RL propulsor might actually use carbon composite blades (gloss black?)

I might lower that prominent satellite link antenna aft a bit. Attempting second Bow hull part print today. Temperature expected t be a bit milder a will open garage an turn on fans to moderate temps.

The French seem to reverse the cord on their masts. Using the same aluminum foil shaped tubing, but the trailing edge on these boats points forward. Interesting. I guess at model regattas I'll be destined to spend time explaining to knit pickers it's not a mistake. lol.

[Albacore 569]

Bow section. Largest part on project. Fail but is salvageable (a Battleship West Virginia Pearl Harbor salvage hull patch made of baking soda, CA super glue and bondo sanding would work). But since the problem is identified, best to print all new part so the hull materials are all uniform in the hulls future lifetime expansion contraction rates).

Fail due to too high ambient temperature in printing area (too damn hot in garage..lol). Will print smaller parts and wait for cooler temps. Confident it will work then. I could wait and print in middle of the night, but since the bow print takes 28 hours 1 minute, I don't think so.. Even the flawed part is rather beautiful. Sharing so you learn from my mistakes. Learning with you.

Where is that Star Trek TNG food replicator? "Earl gray hot". or Klingon Bregit Lung in Grapok sauce...lol.

Qapla! (Klingon for good luck (success) but sounds like Ker plop! lol

[Albacore 569]

Today's part is the Suffren sail in 1/64.





I am not using the Auto resin feed for now. Buildng my trust back with this machine and my general nervous attitude about anything digital. I love digital, but digital doesn't like me.



But when it works...Behold! The Printers larger size is now paying off. Suffern's sail (fin) in one single unit.




Still wet from Isopropyl Alcohol and water soap gentle wash. When the sun comes up this morning, then it's time for its UV sun bath.





I think I will do the pump Jet shroud next

Thank you Randy Sanders, your drafting skills is really shining now well deserved.

[Albacore 569]

Success after many starts and stops over 5 months. This stern section came out perfect today. I guess this is how it's supposed to work. lol Immediately starting next part now.

[Albacore 569]

Installed new LCD screen. Exposure tests successful. Will commence printing parts again hopefully now. Too hot to print now in garage but will do a small part with a shorter print time in the morning when its cooler (96F today) and see what happens. Photo below shows a sheet of blank white paper illuminated from below with UV light.

[Albacore 569]

Installed carefully LCD screen yesterday, hours after arrival. A second free LCD screen was just delivered from China too. Aire and spare. lol Leveled plate and will test screen and record for records. Hope to commence printing asap. Hopefully success.

[Albacore 569]

My replacement LCD part from Hong Kong for my Any Cubic printer after a month waiting finally arrived today after several attempts. Any cubic sent replacement free. Several packages sent by them seemed to get lost damaged or stolen? Now after my shop been at a standstill, I will take my time replacing the screen tomorrow and hopefully all my printing issues will be solved.

I need to get this Sub built!

I think my original LCD screen was damaged originally & never worked right to begin with. Any cubic covered for it. Trumpp tax Tariffs didn't affect it since it was $220.00 normally, and under the $800.00 tariff threshold but that all changes this Friday. Are we having fun yet?

[Albacore 569]

Good News. AnyCubic is sending me a free new replacement LCD screen.
[/QUOTE]

Still awaiting Any Cubic LCD screen from China. It is in customs in Los Angeles. Grrrrr. Been so damn frustrating with this printer the last 5 months. When it does print, the results have been amazing. I am going to print this sub if it kills me...Once the new LCD screen is installed any cubic (who has been standing by their product and this customer having sent new parts to me free), and my community help thinks it should all work as designed finally. I think the printer was damaged receiving from Amazon.

In meantime, someone photographed and posted a series of photos at Toulon of an operation of what appears to be an attachment or detachment of Duguay-Trouin
(second Suffern class boat) towed array. Cable boat and divers zodiac on portside correlates with the subs towed array location also.

The images posted did not describe what may have been a happening in the photos, this has been my interpretation.

[Albacore 569]

Suffering Suffren. Figured out why my prints never seemed to work. My LCD screen is broken or damaged.
In email correspondence with Any Cubic support. Trying to get AnyCubic to replace my LCD screen for all the trouble I have been having.

Good News. AnyCubic is sending me a free new replacement LCD screen.

[Albacore 569]

Suffering Suffren. Figured out why my prints never seemed to work. My LCD screen is broken or damaged.
In email correspondence with Any Cubic support. Trying to get AnyCubic to replace my LCD screen for all the trouble I have been having.

[Subculture]

15 blades is an odd number, but not a prime number.

[Albacore 569]

I wrote all that here above in my earlier post.

An odd or Prime number for blade count.

For the model, fewer the blades the better the model pump jet performs in the pond. (Bob Martins observations
and recommendations I am sure are correct). Trout's noting the fewer blades the better the thrust supports Martins too. .

In my illustration of supposedly a Trafalgar pump jet the blade pitch is much too feathered in pitch in my opinion.
In such complex devices, the blade pitch I am sure can be adjusted in dry dock.
So, suspect that illustration does not represent the actual blade pitch and maybe closer in reality to a
conventional blade pitch like in the models posted above. (flatter pitch)

My Suffren's pump jet has to be a post swirl Pump jet, the fixed stators behind the rotating section. Due to
the pivoting ability (Yaw only) of my pump jet to test model maneuverability.
I am sure the Suffren and other French, American and British Russian pump jets are pre swirl for robustness and resistance
to battle damage.

It is less efficient than a post swirl, but on a nuclear submarine the endurance of the power source
(nuclear propulsion) pre swirl is not an issue, But pre swirl is quieter which is the whole reason for the exercise) so all go
I am sure with pre-swirl or possible pre-swirl / post-swirl (both).

For my test, the mechanically simplest way for a yaw pivoting PJ is to make it post swirl. That part of the model
will not be 'scale'. but since that whole thing is classified any way, what is scale in the first place. lol.










he model will not be 'scale'

[Subculture]

Propulsor/pumpjets typically use prime number for blade counts to avoid harmonics, so typically 11,13,17 etc.

[trout]

I made a for my Trafalgar pump jet, when printed it with what I thought was the correct number of blades. It push water however it was less than impressed by it. So, I modified by reducing the number of blades and very scientifically tested that (by attaching it to a drill and running it in a kiddy pool). It has a lot more push. It may even run better with fewer blades, but I can always do that later.

[Subculture]

I’m not in a competition, I just like to play around with these things out of interest. Someone in a position to know what the real ones look like said that he considered the original Prop Shop item was closer to the truth. With a few hints on what could be done to improve the authenticity of the Prop Shop item I drew a cad file and printed a test item. It moved water well enough, but would really need to do some thrust tests to see how it stacks up against the others.

I guess someday I might get to see an original if/when they get declassified, assuming I live long enough.