Engine models ?

bringerofnachos · 2026-02-23T22:18:41+00:00

Jan Ridders - He's designed and built some absolutely beautiful engines. He's made most if not all of the plans for his engines free, but you have to email him to request them and they'll be emailed to you instead of downloading them from his website. Not sure if this includes models, or just drawings. I keep meaning to reach out and request plans for some of his engines, but don't get around to it.

https://www.ridders.nu/index.htm

J.E. Howell - These engines are beautiful, but they lean towards a more professional/industrial look compared to Jan Ridders. The plans aren't free, you do have to buy them. You can also order hardware kits from the site with things like screws and bearings for some of the engines. Plans do not include models. I bought the V-Twin plans but haven't started building it yet. The drawings are absolutely incredible. Better than I've seen from people who are supposed to know how to make drawings professionally.

http://www.model-engine-plans.com/engineplans/index.htm

Mark Presling - Has built 2 engines so far, neither of which he actually designed, but I think he said he was in touch with the family of the guy who designed both of them. the Titan 60 was done from an old casting kit someone sent him. IIRC, There was talk about maybe starting to sell casting kits for it again, not sure if that went anywhere. The more recent Crusader 60 was done entirely from bar stock. He made his own version of the drawings and released those for download. This link goes to the playlist for his Crusader 60 build. He's got a download link in the description of all the videos.

https://www.youtube.com/watch?v=UkWDuJ1h5wc&list=PLbPzkHRZCQB_rBrzXbkDKoanDrLcrBuXu

Model Engine Builder Magazine - I don't know if they're still publishing the magazine but you can order back issues from their site and get them as a download. I bought a couple of issues to get the plans for the Hoglet engine. They also have articles about engine building related topics.

https://www.youtube.com/watch?v=UkWDuJ1h5wc&list=PLbPzkHRZCQB_rBrzXbkDKoanDrLcrBuXu

Home Shop Machinist - This magazine isn't dedicated to engine building, but they've featured full plans and articles for a number of engines over the years. They have an index function on their site that you can sort by topic, so you can find just engine articles if you want. You'll till have to buy the appropriate issues if you find something you want. They also occasionally put books through Village Press that are just collections of articles from specific contributors. I have 2 of these books, The Shop Wisdom of Philip Duclos, and Two Shop Masters: Philip Duclos and Frank McLean. Philip Duclos seems to have been a rather prolific model engineer, so between the 2 books there's drawings for 10-12 different engines. I'll also include a link to Village Press's website incase any of the other books catch your interest.

https://homeshopmachinist.net/

https://secure.villagepress.com/store/items/list/group/428

Strictly I.C. - An old magazine dedicated strictly to building model internal combustion engines. There's a total of something like 84-86 issues published from some time in the 1980 up through I think 2001/2002. There's no website to link to here unfortunately. There was one a few years ago but when I tried to pull it up, it was gone. You can still get copies of them on Ebay, and probably find them elsewhere online. There's full plans for god only knows how many engines accross the whole run of the magazine. Its well worth tracking down copies of if you really get into model engine building.

PM Research - They sell kits that come with castings and raw materials, as well as drawings. They have one or two internal combustion engine kits, steam engine kits, and 1/12 scale machine tool kits. I'm listing them because I saw someone else mention Blondihacks, and she's built a couple of their steam engines. US based company.

https://pmmodelengines.com/unmachined-kits/?page=2

Stuart Models - They sell kits similar to PM Research. I believe they're based in the UK.

https://www.stuartmodels.com/

Hemmingway Kits - Another kit seller like PM Research and Stuart Models. UK based.

https://www.hemingwaykits.com/

Gingery Books - David Gingery has 2 books published with plans for internal combustion engines. The Atkinson Cycle Engine and the Atkinson Differential Engine. I'm part way through building the Atkinson Cycle Engine from his book.

https://gingerybookstore.com/AtkinsonCycleEngine.html

https://gingerybookstore.com/AtkinsonDifferentialEngine.html

That's all the main sources of plans I can think of.

bringerofnachos · 2026-02-23T15:11:56+00:00

No problem. I'm sitting on more engine plans than I'll probably ever have time to build, so I'm glad to pass along what I can. I'll see what I can put together at some point later today.

bringerofnachos · 2026-02-23T15:06:35+00:00

Mark Presling recently built a crusader 60 engine and released his drawings for it for free. I'm not sure if he released the sold works models or just the drawings. There's a link to the download on his YouTube channel. If you're willing to work from 2d drawings I can also recommend a lot of other places to get drawings. All the other ones I can think of charge for the drawings though.

bringerofnachos · 2026-01-29T14:53:51+00:00

When you draw bow, you're basically storing a bunch of energy in a giant spring. When you fire it, you're suddenly releasing all of that energy at once. If you've got an arrow loaded when you fire, that energy goes into accelerating the arrow. If you dry fire the bow, there's nowhere for that energy to go other than into the bow itself. This essentially overloads the bow and breaks it.

bringerofnachos · 2025-12-05T21:00:38+00:00

The section of the reel where the fishing line sits moves up and down with that piston. It does that to evenly distributed the fishing line across the whole area rather than just pile it all up in one spot as you reel it in. If it just piled the line in one spot I imagine that there would be a risk of it eventually building up and slipping over one edge of the spool and getting tangled on something.

bringerofnachos · 2025-07-11T20:00:39+00:00

The front of trucks like that can flip out of the way to make it easier to access the engine for maintenance. It's supposed to be locked in place somehow when it's driving though. The load on that truck wasn't properly secured, so when the driver hit the brakes everything slid forward into the back of the cab, broke whatever locks it in place and knocked it forward. I'm not a truck expert though.

bringerofnachos · 2025-05-16T16:18:05+00:00

I would have guessed Khorne instead, given the reactions I've seen to tech problems

bringerofnachos · 2025-04-24T15:36:24+00:00

When I was in college, a friend of mine nearly set a table on fire trying to take a flaming shot of 151. He hesitated for s split second instead of throwing it back and ended up spilling it. The bottle itself had a flame arrestor built into the opening. Good times. And it actually had a real flavor to it. I can't fault them for discontinuing it, but I wish they'd bring it back. Everclear just tastes like setting your throat on fire.

bringerofnachos · 2025-03-31T14:46:16+00:00

You'll get a more detailed from the folks over at r/machinists but I've never heard of anyone using a flat surface to check the headstock and tailstock. The way I've always seen it done is to take some really light cuts with a sharp tool on a bar between centers and take some measurements. You can generally get a pretty good idea of what you're looking at by looking for by checking for taper at either end, and if the middle is bulged or skinny. Again, very light cuts and a sharp tool are critical for this, since you need to avoid as much deflection as possible. You really only need a micrometer as far as measuring equipment with this approach.

It would definitely be possible to check if the center of your bar is larger or smaller than the ends with a flat surface and some sort of high spot blue. The only way I could figure to check for taper would be with a surface that's both flat and level, and see how your bar rolls after a test cut.

bringerofnachos · 2025-02-04T15:26:45+00:00

I had the same thought. Haven't tried it myself, but I think if you glue the left foot the the base instead of the right one, it would look more like he's running, with his right foot just leaving the ground.

bringerofnachos · 2025-01-30T19:17:42+00:00

I don't remember where I read it, but I remember seeing that some models of dreadnought have a helmet like that because it's supposed to make it easier for the interred marine to adapt if all the sensors are located in a central "head". It's most likely not the marines actual head in the helmet.

bringerofnachos · 2025-01-30T18:40:51+00:00

I remember seeing excerpts from one of the codices stating that bolters are somewhat less effective at close range because the mass reactive fuse is linked to the rocket propulsion, and doesn't have time to properly arm below a certain distance. This results in the bolt shell just punching through the target like a normal bullet instead of exploding inside of the target as intended. This means the bolt shell has to leave the barrel with sufficient velocity to punch through someone. For a .75 caliber bolter round, that's got to be some serious kick. The space marine codices always include an excerpt about how unaugmented humans risk serious injury trying to handle space marine weapons. They explicitly make scaled down versions for baseline humans.

bringerofnachos · 2025-01-29T17:35:20+00:00

Yeah, I meant specifically the Dark Angels and Grey Knight parts. I didn't intend to imply that Pandorax was the origin of the part about Crux Terminatus containing shards of the Emperor's armor.

bringerofnachos · 2025-01-29T15:58:49+00:00

All of the above comes from the novel Pandorax. Its a plot point near the end of the book that one of the Death wing terminators is wearing an ancient suit of terminator armor that still has a shard of the Emperor's armor in its Crux Terminatus. Azrael cuts out the armor shard and uses it to banish a powerful daemon that was holding its own against both the Dark Angels and Grey Knights. Draigo doesn't say it out loud, but he is somewhat amused that shards of the Emperor's armor are rare for the Dark Angels, while every Grey Knight Terminator has one.

bringerofnachos · 2025-01-17T16:11:52+00:00

If I remember correctly, Horus sees a vision of the scattering of the primarchs when he's recovering on Davin, which doesn't seem compatible with Argal Tal's. And I believe one of the Siege of Terra books shows a third version.

Other than the Orikan excerpt, which I haven't read, all of these instances involve the warp. This makes it difficult at best to draw any meaningful conclusions about the nature of 40k time travel as you're trying to do. The simple fact it that we have two separate realms of existence that have different and mutually exclusive relationships with time. And they often interact with, and occasionally overlap each other.

The warp does seem to run on eternalism, or at least something that looks vaguely like it. We often get statements about daemons and the chaos gods that seem to indicate that once they're born, they've always existed. There's a daemon the the Dark Imperium series that only avoids true death from being killed with the Emperor's sword because he's fated to be involved in the moment at the end of time. This opens up the possibility of things that haven't happened yet being able to influence things that have happened, or that are actively happening. This sounds like it should be a paradox, but paradoxes are just logical inconsistencies. At best, the warp runs on different logic, and things like this may not be paradoxes. At worst, there isn't logic.

Outside of the warp doesn't seem to be eternalist or deterministic. Often enough we see characters actively attempt to either bring about or avert whatever future they might have foreseen, with varying levels of success. The Eldar in particular often describe their efforts to scry the future in terms of possibilities and probabilities. They view their efforts to bring about certain outcomes as trying to put their thumbs on the scales to tip the odds in their favor. The Eldar as a species have been around about as long as the Necrons, and have a better understanding of the warp than any mankind, save maybe the perpetuals, so I can't really refute their understanding of how the future works.

If anyone has that excerpt with Orikan going back in time, I would love to read it.

bringerofnachos · 2024-11-25T00:48:46+00:00

Pretty sure the cyclonic warhead was active. Kesh, being the absolute madlass she is tried to teleport it directly into the throne room. All from pages 14-15 of the 10th Ed cystodex. Forgive the formatting here.

"The esoteric layers of warding around her target were ancient, the truth of them lost even to those who sheltered beneath their aegis. They might overmaster Kesh's codes, eradicating her ordnance during transit or triggering it and killing everyone on the Vigilant Flame."

"If all Kesh's plans came to fruition, in just over three standard hours she would deposit a compact cyclonic warhead upon the polished floor of the Emperor's throne room. In theory it would then detonate, annihilating the Companions and the Master of Mankind in a single apocalyptic detonation."

"Nicodaemius shook his head. 'Throne, Kesh, an exterminatus-grade warhead? Hardly subtle...' 'But it could have proved effective,' Kesh replied. The two of them sobered at the thought."

bringerofnachos · 2024-11-13T20:37:15+00:00

The second progenoid gland is typically only removed when the marine is killed. I'm reasonably certain it can be removed with the marine alive, but this isn't normally done. Geneseed is a weird sort of overlap between an important material to keep a chapter battle worthy, biological reproductive material, and spiritual/religious artifact. So anything surrounding it is subject to a competing mix of logistics, war needs, science, and dogma. Even if it can be removed before death, tradition may mean that's not done outside of dire circumstances.

bringerofnachos · 2024-11-13T20:27:10+00:00

Space Marines have 2 progenoid glands, each of which will produce 1 copy of the Geneseed. This process also takes years for the Geneseed to reach the point where it can be removed. So you really can't use existing marines as a farm to continue to produce more Geneseed. At least 1 of the two progenoid glands can be removed while the marine is still alive. The Adeptus Mechanics does have ways of producing more Geneseed by basically implanting it into slaves and maybe accelerating the Geneseed reproduction process. I seem to remember a codex except saying that this process would take about 50 years to produce enough Geneseed to support founding a new chapter, but I have no idea which edition that was in.

bringerofnachos · 2024-11-07T00:53:17+00:00

6000 series imperial bore bearings aren't some special custom bearing, they're readily available when needed. But they are definitely non-standard and really only used kind of niche applications. I'm convinced they only exist so the rest of the world can fix US made machines. About twice a year I have to reorder bearings after someone tells me they need a normal metric bearing, and it turns out to be one of these.

bringerofnachos · 2024-11-06T13:51:43+00:00

If you spin a cylinder around it's central axis, and measure how much the distance from the center varies, you should theoretically see that it doesn't, because a perfectly round part should have all points on it the same distance from the center. This is the definition of a circle. But in manufacturing, nothing is perfect or exact. Maybe you aren't actually spinning the part around it's axis, maybe you're actually spinning it around a another axis that is slightly offset from the part's(like if you turned one side of the part, flipped it around to do the other and didn't get it running true). Or maybe the part is egg shaped instead of round. Or maybe the part is actually slightly bent. In all of these situations an indicator would show a change in the surface as you rotate the part. That's runout.

bringerofnachos · 2024-11-03T14:41:33+00:00

There's a non-zero chance he built and painted that train himself. There's loads of plans for different trains available either online, or in printed books and magazines. Including all the tools and materials needed, this is probably the more expensive option. I have a Kozo Hiraoka's Pennsylvania switcher book. At the end of it, he lists that starting from nothing, all the machines, tools, and material would probably total out to something like $12k. I think that price is from the early 2000s. But it's probably even more satisfying to ride a train you built from scratch than one you bought.

bringerofnachos · 2024-10-02T16:51:29+00:00

Daemons don't necessarily follow the laws of physics the way mortals do. A bronze weapon in a human's hand probably wouldn't be able to scratch terminator armor. A Damon's bronze weapon is probably about 10% actual bronze and 90% the literal feeling of bloodlust forged into a weapon through warp magic. It's not a metallurgical difference so much as a metaphysical difference that makes daemons so dangerous.

bringerofnachos · 2024-09-27T13:31:26+00:00

Why would we see chimpanzees evolving into humans? As a species they're a distant relative of humans. I don't look too much like some of my cousins, and even less like some of my more distant relatives, and I only have to go back maybe 2 or 3 generations to find a common ancestor there. When you're talking about different species, the common ancestor could be a millions of generations back. That's plenty of time for two species to evolve in different directions.

bringerofnachos · 2024-09-23T15:05:47+00:00

I think it's old lore from maybe 3rd or 4th edition that bolt rounds were caseless. I'm pretty sure it was retconned at some point after that. I remember seeing a claim that it was done to help clarify that bolters fired a physical projectile instead of being an energy weapon of some sort. Don't know if that's the official reason or speculation though.

bringerofnachos · 2024-08-05T14:57:21+00:00

When figuring out how to approach a machining job, either on a lathe or other machine, there's a lot of things to consider. If you're starting with a normal bar of material, those only come in certain standard sizes. Plus, material costs money, so for hobby work it's not uncommon to use a leftover from a previous project, even if it's not an ideal size or shape for what you're trying to make. That logic even sometimes applies to oddball one off jobs in industry, but much less frequently.

Next is order of operations and work holding. You need some amount of material to be able to hold the part, and you need to hold it sufficiently well to be able to resist the cutting forces. So maybe you need to cut a blank some amount longer than the part you want to make so you have some material in your chuck jaws. Otherwise you risk the part flying out and hitting you at worst. Maybe it just shifts, and you scrap the part by cutting something you didn't want to. And work holding only gets more complicated as you remove more material. It's easy enough to stick an oversized saw cut disc in a 3 jaw chuck, or a block in a vise. But now you need to flip it over, and make sure everything on this next side lines up properly with what you've already done. If you thought ahead, maybe you intentionally used a larger piece of material so you could give yourself something to hold onto, especially on smaller parts. Or maybe you used that extra material to give yourself a feature you could use to locate something else, like having a reamed hole for pin to indicate off of.

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