https://forum.rc-sub.com/ vBulletin Forums en Mon, 08 Jun 2026 02:17:18 GMT vBulletin 60 https://forum.rc-sub.com/images/misc/rss.png https://forum.rc-sub.com/ https://forum.rc-sub.com/forum/photos-of-concept-fantasy-or-science-fiction-subs/195647-hydronaut-model-from-1966-movie-around-the-world-under-the-sea Mon, 08 Jun 2026 00:57:00 GMT https://en.wikipedia.org/wiki/Around_the_World_Under_the_Sea https://en.wikipedia.org/wiki/Around..._Under_the_Sea

]]> Photos of Concept, Fantasy or Science Fiction Subs redboat219 https://forum.rc-sub.com/forum/photos-of-concept-fantasy-or-science-fiction-subs/195647-hydronaut-model-from-1966-movie-around-the-world-under-the-sea https://forum.rc-sub.com/forum/youtube-videos/195646-amazing-ship-lifts-around-the-world Sun, 07 Jun 2026 22:42:19 GMT Amazing Ship Lifts around the world
]]> YOUTUBE VIDEOS Albacore 569 https://forum.rc-sub.com/forum/youtube-videos/195646-amazing-ship-lifts-around-the-world https://forum.rc-sub.com/forum/general-topics/195641-yes-it%E2%80%99s-ai Sun, 07 Jun 2026 18:56:43 GMT GENERAL TOPICS Das Boot https://forum.rc-sub.com/forum/general-topics/195641-yes-it%E2%80%99s-ai https://forum.rc-sub.com/forum/tips-n-tricks/195607-investment-casting-everything-you-were-afraid-to-ask-or-didn-t-know Fri, 05 Jun 2026 20:28:31 GMT Hello everyone. At the request of forum members, I will try to explain, in full detail, how to master investment casting. I will describe the...
At the request of forum members, I will try to explain, in full detail, how to master investment casting.

I will describe the complete process from start to finish, including all necessary consumables, tools, equipment, as well as examples of how to replace purchased items with homemade alternatives to save money.

So, let's begin.

A little about myself. My name is Anton, and I have been working as a jeweler in a private jewelry workshop for the past five years. I have never completed any formal courses related to this profession.

The only profession I have that is officially confirmed by a state-issued diploma is that of a career military officer.

Everything I know and everything I do, I learned from publicly available sources.

I will explain the entire process with a focus on scale modeling rather than jewelry making, so it will be easier for you to understand. However, everything described here works just as well in the opposite direction.

ATTENTION!

This material will be very extensive. To ensure that the entire guide remains available in full and in the correct order, I strongly ask everyone not to comment on this topic until I write in the final post that I have shared all of my experience and that questions are welcome.

If someone decides to begin working on their own before I finish writing this guide and needs my advice, you can always send me a private message.

Later, this topic may evolve into a question-and-answer discussion, but I would like the first page and the complete guide to remain intact and uninterrupted.

So, let's begin.

What is investment casting?

Investment casting is a process in which a disposable wax model is destroyed during the burnout of the mold, and the resulting cavity is then filled with molten metal during casting.

Here is the complete sequence of operations required to produce a metal casting using the vacuum casting method:

(Each of these steps will be explained by me in detail, with examples, different implementation options, pictures, and videos, exactly as I perform them in my day-to-day work.)

1. A wax model is made.
2. If only one model is being cast, it is attached to a sprue, which is then attached to the flask base.
   2a. If multiple models are to be cast at the same time, a "tree" is assembled. This consists of a thicker wax rod serving as the "trunk," onto which the models are attached using a wax pen. Each model is connected to the trunk through its own sprue.
3. A perforated flask is placed onto the flask base. The flask is usually wrapped with either masking tape or regular tape beforehand. I use regular tape because it is more reliable.
4. The investment material is prepared and poured into the flask using a vacuum.
5. After the investment hardens, the rubber flask base is removed, the tape is taken off, and the investment is trimmed with a knife to remove any excess material that has flowed onto the flask.
6. The flask is placed into a burnout furnace equipped with a controller that allows temperature stages and their durations to be programmed.
7. After the burnout cycle is complete, the furnace program transitions to a holding temperature suitable for casting molten metal into the flask.
8. The flask is removed from the burnout furnace and filled with molten metal using either vacuum casting or centrifugal casting.
9. After cooling, the investment material is broken away using water or mechanical methods, and the casting is removed.
10. The castings are separated from the sprues, cleaned, and finished.

This is a brief overview without going into the details of each step (which I will, of course, cover later). Using this process, I made the propellers for my Project 941 model:






By the way, casting jewelry in gold or silver is actually easier than casting a complex model like this.

This model contains several mistakes, starting from step one and continuing through other stages of the process. I will point them out and explain them to you.

I hope you will find it informative and educational.

]]> CollectiveBorg https://forum.rc-sub.com/forum/tips-n-tricks/195607-investment-casting-everything-you-were-afraid-to-ask-or-didn-t-know https://forum.rc-sub.com/forum/general-topics/195601-no-bad-bob Fri, 05 Jun 2026 17:48:54 GMT
NO shiny lures or squirrel syndrome allowed!

Cyclops is freakin' lame! Don't make me take a band saw, or better yet, 40 grit belt sander to turn it into powder when I come down.

STAY FOCUSED.

I have spoken.]]> GENERAL TOPICS QuarterMaster https://forum.rc-sub.com/forum/general-topics/195601-no-bad-bob https://forum.rc-sub.com/forum/youtube-videos/195595-what-ever-happened-to Fri, 05 Jun 2026 14:54:19 GMT
Here are previous ones.
https://forum.rc-sub.com/forum/youtube-videos/194531-what-happened-to-the-flying-sub-from-voyage-to-the-bottom-of-the-sea

https://forum.rc-sub.com/forum/youtube-videos/194207-i-do-miss-radio-shack

Here is a new one. I never had an erector set, as it explains in the video it does give people, kids mostly, the taste of being an engineer. Perhaps sparking their interest as they grow up.


]]> YOUTUBE VIDEOS Ken_NJ https://forum.rc-sub.com/forum/youtube-videos/195595-what-ever-happened-to https://forum.rc-sub.com/forum/general-topics/195581-here-s-a-teaser-for-this-saturdays-divetribe-zoom-meeting Fri, 05 Jun 2026 01:58:06 GMT running gear -- all the devices that actively propel our model submarine through the water.

Part one is this Saturday and I've prepared this quick teaser to notify the Tribe of the event and to give the members a chance to study the photos I will be presenting at the Zoom so they can better prepare any questions thay may have come presentation time.

INTRODUCTION TO RUNNING GEAR



































MOTORS AND GEAR


























​

Lots of good stuff to learn at these zoom's, so if you're not already a DiveTribe member, get ahold of Bob and sign up. Keep in mind that these meetings are archived and available for viewing by members anytime they wish. A great resource!]]> GENERAL TOPICS He Who Shall Not Be Named https://forum.rc-sub.com/forum/general-topics/195581-here-s-a-teaser-for-this-saturdays-divetribe-zoom-meeting https://forum.rc-sub.com/forum/general-topics/195530-diesels-on-us-subs Tue, 02 Jun 2026 14:06:52 GMT Just watched a tour through the USS Blueback on Youtube. I thought that the diesel engines look kinda simlar to those on Gato class boats. So I... Just watched a tour through the USS Blueback on Youtube. I thought that the diesel engines look kinda simlar to those on Gato class boats. So I lokked em up....Interesting: The Fairbanks Morse 38 8-1/8 diesel engin is the licensed US version of the German aircraft diesel Junkers Jumo 205 from 1936. The slightly modeified version 38ND 8-1/8 still serves on nuclear subs. So nuclear subs using an almost 100 year old German diesel engine design. As a German that makes me kinda proud.... GENERAL TOPICS DrSchmidt https://forum.rc-sub.com/forum/general-topics/195530-diesels-on-us-subs https://forum.rc-sub.com/forum/general-topics/195524-i%E2%80%99ve-never-seen-this-picture-before Mon, 01 Jun 2026 22:35:32 GMT I thought this was a pretty neat picture. ]]> GENERAL TOPICS Das Boot https://forum.rc-sub.com/forum/general-topics/195524-i%E2%80%99ve-never-seen-this-picture-before https://forum.rc-sub.com/forum/photos-of-concept-fantasy-or-science-fiction-subs/195473-something-from-the-horse-cow Sat, 30 May 2026 16:10:58 GMT ]]> Photos of Concept, Fantasy or Science Fiction Subs Ed Kirk https://forum.rc-sub.com/forum/photos-of-concept-fantasy-or-science-fiction-subs/195473-something-from-the-horse-cow https://forum.rc-sub.com/forum/silly-questions-from-newbies/195451-idea Thu, 28 May 2026 15:57:20 GMT
Another possible application for David's gimballed propeller mechanism from the Disney Nautilus - the Swedish Spiggen II]]> SILLY QUESTIONS FROM NEWBIES! redboat219 https://forum.rc-sub.com/forum/silly-questions-from-newbies/195451-idea https://forum.rc-sub.com/forum/general-topics/195446-hobby-related-interesting-stuff Wed, 27 May 2026 21:48:19 GMT I know a lot of you are doing parts manufacturing and using lots of different methods.. Check out this guys YouTube web site. This man is so...
Check out this guys YouTube web site. This man is so like our own "Master Builder" David M.

Tools, Glorious Tools! #11 - The Vacuum Casting Machine

Rob
"Firemen can still stand the heat"]]> GENERAL TOPICS rwtdiver https://forum.rc-sub.com/forum/general-topics/195446-hobby-related-interesting-stuff https://forum.rc-sub.com/forum/silly-questions-from-newbies/195445-1-96-ohio-class Wed, 27 May 2026 20:51:33 GMT wondering if this will work for it182mm ballast tank (approximately 1000ml) wanting to build my own WTC for the sub just need a basic design to...

wondering if this will work for it182mm ballast tank (approximately 1000ml)

wanting to build my own WTC for the sub just need a basic design to expand upon

thank newbie

]]> SILLY QUESTIONS FROM NEWBIES! Trafficlightguy https://forum.rc-sub.com/forum/silly-questions-from-newbies/195445-1-96-ohio-class https://forum.rc-sub.com/forum/youtube-videos/195444-bismarck-then-and-now-85-years-on Wed, 27 May 2026 16:38:42 GMT Battleship Bismarck 85th anniversary of her demise and also remembering Hood too. Objective analysis and rational; logic of the actual wreak since...



]]> YOUTUBE VIDEOS Albacore 569 https://forum.rc-sub.com/forum/youtube-videos/195444-bismarck-then-and-now-85-years-on https://forum.rc-sub.com/forum/silly-questions-from-newbies/195420-help-with-esc-issue Mon, 25 May 2026 20:46:58 GMT



​]]> SILLY QUESTIONS FROM NEWBIES! Occupant https://forum.rc-sub.com/forum/silly-questions-from-newbies/195420-help-with-esc-issue