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V8 engine CAD test: unprintable geometry, surprising detail

From Meta Muse Spark 1.1 Hands-On Review · ≈19:44

“Unfortunately, the big issue, as we're going to see here if we open the SCAD file, is that the hole for this engine is not deep enough to fit a 280 motor.”

Bijan Bowen

“the valve covers actually have like individual hex bolts that show like them being bolted on. And they're really quite well done.”

Bijan Bowen

“And then unfortunately it just wasn't altogether competently. But it does show some level of promise.”

Bijan Bowen

“So, this would be very difficult to print just with like gaps like that, you would need I mean, it wouldn't be horrible to print, but it would need a lot of support.”

Bijan Bowen
What’s in it
  • A physical-constraint test the model fails on fit and printability — base cutting into the cylinder, floating air cleaner and valve covers — while adding hex bolts and a correctly-sided oil cap that peers usually omit.
Clip transcript
frames per second like from this scene. It's passable. So, next up, I'm going to give this a 3D model test where it needs to create a 3D model of a V8 engine for my remote control car. I have a 280 sized motor that I'd like to put inside of this engine model. So, I wanted to make it something that looks realistic and also is something that can be 3D printed. We'll see how this does. Interesting. It just wanted to find out about the system and it's looking up motor specifications. Good. Using standard 280 specs. So, my camera wasn't recording for the 3D model test, which you know, it does happen sometimes. Basically, overall, we'll look at this once more. It actually did a solid job of making a replication of a V8 engine. Some of the things it included were actually very interesting and levels of detail that I've not seen in a lot of other models when doing this prompt. Unfortunately, the big issue, as we're going to see here if we open the SCAD file, is that the hole for this engine is not deep enough to fit a 280 motor. And even if it wasn't intended to go all the way in there, the problem is this base here just cuts into the cylinder. So, it would be physically impossible to install that in here. I did also tell it to optimize this so it could actually be 3D printed. And unfortunately, there's just a bit too much odd geometry everywhere. And if we open this in a 3D slicer program, we'll be able to see a bit better in reference to that. So, this would be very difficult to print just with like gaps like that, you would need I mean, it wouldn't be horrible to print, but it would need a lot of support. And then we have an issue like the air cleaner here on top of what would be the carb is just floating. The valve covers are also kind of floating. The connection's not great to the V's. But the things that it did do that were good that are just weird is the valve covers actually have like individual hex bolts that show like them being bolted on. And they're really quite well done. Now that I looked more at that though, yeah, I mean that's cool. And then the other thing it did, it put an oil cap on one side of the valve cover, which is kind of how it would be in real life. So just weird detail that it included like that that's not often seen in other models. And then unfortunately it just wasn't altogether competently. But it does show some level of promise. And on first glance, just from like zoomed out, it's like, wo, this is really quite good. So, that was my initial reaction that I failed to capture on camera because I was not recording.
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