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Thats so cool, chimney mystrery went a long way since times of Tales and Aristrachus

Fantastic

Creative video, thanks :)

nice

I always wonder where the heck do people find this material at home because my old "house" is empty. There is only cardboard broken glass and random tools.

David would you mind sharing how you made the LiDAR Scanner?

this is the video i was looking for

Hello David, I'm a machinist and looking for a project to challenge myself and to keep myself busy with. Did you machine this yourself? Well if you don't mind, is it possible to get the drawings of this elegant masterpiece. I just want an inspiration on how you made it and what kind of bearings you used. I'd really appreciate it. Otherwise good job, greetings from Denmark.

Give it to me please 😊😊😊

I use type k thermoouple & it lasts years as I put it into a very thin wall stainless steel sleeve & always coat it with a refractory wash every time I use it then afterwards it just taps off. same with moulds for surplus metal after pouring as molten alloy corrodes steel moulds but not with a refractory wash

Wow, that's a seriously amazing video, can you please tell me on which page you got Chris' design?

that is an elegant demonstration about how a math concept describes deterministic limiting static factors of dynamic physical systems

wow amazing. Sir. how i can contact you?

Very nice work.

Officer: Sir, why aren't both your hands on the wheel when driving? Him: Sorry officer, my hands were... Locked

Man can I buy this?

In a rocket stove the equilibrium of full pyrolisis is created by the length of tube after the burn chamber. Although mostly smoke free, your design is letting most of the VOC (flammable gasses) release before combustion. Basically just a contained fire (evidenced by the bright yellow flame). Yours would benefit greatly from moving the feed tube lower, and in the middle of the 90° bend. By circumstance it also creates a larger burn chamber and will burn hotter. You will need a fire grate, but it really doesn't conplicate things, mount it halfway up the bottom tube from end to end. There is a ratio between the pipes as well. 3:2:1 being the riser, the air tube, and the feed tube respectively. Please try the mods, and take this travesty down.

I am missing the stability feats under the stove very dangerous when it falls beside

How do you compensate for the speed changing on the gyro for navigation? I assume you gotta put a motor on it but then, doesnt that create a counter force?

Runs great ! Good job.

Are the old-style, mechanically brushed armatures embellished with any intrinsic value? Does its DESIGN hold any inherent mechanical advantage over brushless designs?

do you sell them please i am in lancashire

Very good, how many kilos of bronze this size supports?

What kind of gas are you using?

I’m going to build a couple of these with our church youth group. This is an excellent simple build that can be done with some relatively basic tools. Thank you!

This is the music from the OLD RUclips "Forest Lord" video isn't it...

中国人非常感谢你❤

Seems like the steel bearings would wear out quickly. Thank you.

so good. thanks.

Good ideas abaut machining job.

too bad you didn't run the bearings in for a week or two before installing them..waaay better performance... but hey..live and learn right?

You are a great teacher very clear explanations including measurements thanks

Cool video.Not sure if I would have cast it myself had I owned the machines you do but I do like the finished product very much. I want one.

Muchas gracias wro

Great vid……make more plz

Good job. Thank you

Well done video, look forward to making something similar but for making custom dies for a bead roller!

What is your method for initially setting a radius? Measure off lathe centerline to tool tip?

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Nice work. I don't know why, but your soundtrack for "Test Day," put a smile on my face. Thanks

Great sharing

Hi David, I'm trying to get in touch about making a gyroscope. I tried emailing your email address on your About Us RUclips page but the email didn't go through.

A gumbo lock is Perfect. If your flying in a UFO. Turning in a 90%.

Looks bloody awesome to me!

Need measurements to make the tool please

not a good design because the fire came out to the wood chamber

Wonderful video thank you

Can you make to me a telsla turbine wich can a generator 10kw i will buy it?

Hello