Amazing Technique With a thread drill on a lathe machine, it is difficult to make worms 

I'm a machinist but cannot work like that. I use proper machines for its proper job. He's like a lathe already. 🤣🤣 My boss will b mad at me 4 such a work. 🤣🤣

Yar koi simple thairy btao study k Sath bearing joint Karne ki ???

When doing this sort of work, how do you know that the diameter of the workpiece matches the thread pitch? I can see a situation where the next turn will not quite match the previous thread and you'd get a real mess.

Ive never seen a worm gear made like that before 10/10 top job for that one guys 😁😁👍👍

Been a tool and die maker all my life. This guy is brutal but the standards must be low where he is. Surviving any way possible.

Amazing skill. Was a machinist for 20 years and have never seen anything like that. Notice he never used an indicator.

This is the kind of innovation I fear that American machinist are losing with the computer generation. Great job dude.

Кто хочет, всегда найдёт способ.

Excellent work, but please roll your sleeves up !

Me diste una idea para fabricar una máquina para fabricar esferas del diámetro q quiera grasias colega

Первый раз такое вижу, молодец👍🏻🤝🏻

It is fascinating to see that how a simple technique can produce complicated parts.

как рассчитал шаг резьбы и диаметр заготовки что бы всё сошлось?

Fantástic Job congratulations, God bless you

I've done this in 80s with manual milling machine. Just like you I brushed chips away but used also cutting oil.

I am impressed the shop isn't filthy and the lathe hasn't been beat on and abused great work

Wow, you make it seem so easy👍👍👍

Lots of chatter and movement but damn sure worked. Necessity is the mother of invention.

If you didn't have the right involute cutter to do this properly you could pre-shape the gear with a dividing head and a home made cutter that was just triangular in tooth profile to get the number of teeth and depth pretty much right, then you could use this technique to get the involute geometry pretty spot-on. Using it right from the get go is going to look alright but the geometry is going to be off, because the number of teeth will be set once the grooves start getting deep enough to force the following cuts to follow. Then as you feed into the tap your effective diameter reduces but the number of teeth doesn't; causing binding and leaving you with incorrectly formed grooves in the worm gear.

Very nice video. I would say this part is in bronze and for boating at first sight. Not a gear.