Building A Rocket Motor Test Stand - Simplex Ep 5

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[JacksonBLee]

quiet on the set, bizzlington dropped another banger

[James]

Not sure why you built such a nice stand when you could've just used blue tape to hold down the motor.

[rileyjohnson]

The servo connected to the large arming switch is comical and awesome

[spdcrzy]

That fully labeled wiring harness is a thing of beauty. Seriously. KNOWLEDGE! KNOWLEDGE EVERYWHERE!

[Werdna]

0:01 my brain just realized that not only did Joe have to say the line over and over, he also has to hear it 10-20x again during editing.
He’s built different 🤯

[WinstonMakes]

If your casing stays under 300F, I would highly recommend high temp threaded rubber bumpers (McMaster) to go on the ends of the motor stabilizing threaded rod. And also a nut and washer on the inside of the frame to keep tension on the threads so the rod doesn't back out from vibration.

[TheAverageDutchman]

stacking load cells is generally not recommended from a system dynamics standpoint though. Inherently for a load cell to function they need to have a certain spring factor/movement. Stacking load cells means taking 2 of these springs together. If you're measuring transient or frequency spectrum behaviour, this is going to influence your measurements considerably unless you compensate for it (which is either difficult or impossible depending on what you're measuring. It'll probably work for your application but I think I would probably have made a dummy for both cells so that you could use only the cell you need. The 20 ton cell isn't going to tell you much useful if you need the 3 ton cell and vice-versa.

[austindevries]

So inspiring watching your progress and tenacity Joe. Absolutely brilliant. Keep it up!

[dhargarten]

As an aerospace engineer, I get impostor syndrome watching Joey. Incredible work, as always

[bloho_design]

Your humor is totally in point in this video. You’re killing it dude!

[MethodicalMaker]

Hey, something that you might be interested in... they make shrink tube label maker carts that go into standard label makers! It keeps the wires a lot more streamline, which ends up with more tidy wires and less snagging if you need to pull a wire through a busy rats nest of other wires

[charlesworton]

Very, very nice work... you remind me of me, 40 years ago. I'm glad that you've moved into solid fuel motors... in time, I'd like to see you move into liquid fuelled engines. That will really challenge you. Keep rockin, guy. Beautiful work.

[jannsander]

The way you document your work is probably the best I've seen. Not only do you have the cool shots others provide too, but you really go into details and drop little, helpful tips here and there. The work you put in to let us be part of your project is incredible! I'm not even into rockets at all and much more into regular aviation, but enjoy this so much and find all the considerations super interesting. Your attention to detail - trust me, a lot of us notice even if you dont highlight it - is impressive too.
Thank you!

[blhack]

If you use lag bolts instead of hammering those tent stakes in, there are some benefits: they're way stronger, and also you don't have to use a hammer. Btw make sure the stakes or bolts are angled *away* from the stand.

[bbrockert]

Good stuff Joe. Acorn nuts are cheap and are good for making threaded rods less stabby.

[cdz]

Although I'll never be able to build something like this myself, your videos motivate me to go do new things

[Zenedoboz]

2:11 - It's mesmerizing to see the drillbit going clockwise and the drill chuck appear to going counterclockwise at the same time 😮

[judet]

I love that *Firefly* has an engine called the *Reaver.*

[xXrandomryzeXx]

I absolutely love these series of long videos about designing and building the rocket motor.

[Taveren]

I like how you are just straight up slowly one step at a time making them bigger bolder and more extreme