Author Topic: O.T. Machining a 0.6 mm Screw  (Read 1236 times)

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Offline Homer J SimpsonTopic starter

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O.T. Machining a 0.6 mm Screw
« on: February 19, 2023, 01:52:41 pm »


Machining some pretty small parts.

 

Offline coppercone2

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Re: O.T. Machining a 0.6 mm Screw
« Reply #1 on: February 19, 2023, 08:57:11 pm »
I hate those parts ever since I broke a micrometer that rusted. I always wanna pay a lego man whenever there is something like that. It was some soviet crap
« Last Edit: February 19, 2023, 08:59:45 pm by coppercone2 »
 

Offline PartialDischarge

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Re: O.T. Machining a 0.6 mm Screw
« Reply #2 on: February 19, 2023, 09:32:53 pm »
The tools and methods used by watchmakers are pretty interesting. Some machines like for engraving were made 80 years ago and are still in use
 

Offline MarkS

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Re: O.T. Machining a 0.6 mm Screw
« Reply #3 on: February 19, 2023, 09:46:53 pm »
I'd love to see what would be possible with an atomically accurate and precise 3D printer with atomic resolution... 3 nm screws, anyone?
 

Offline TomKatt

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Re: O.T. Machining a 0.6 mm Screw
« Reply #4 on: February 21, 2023, 11:35:11 am »
Ever tried to repair a modern smart phone?  I think they have those watch parts manufacturers for suppliers.  My hands aren't steady enough for fasteners smaller than a grain of rice these days...
Several Species of Small Furry Animals Gathered Together in a Cave and Grooving with a PICt
 

Offline EPAIII

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Re: O.T. Machining a 0.6 mm Screw
« Reply #5 on: February 25, 2023, 08:22:56 am »
But, but, BUT,

you cheated. You used a die. Which begs the question, how do you make the die.

I assume you don't single point a 0.6 mm die. The tool would need to be around 0.3mm wide, no more. So it must be made with a tap.

And then we are right back to where we started,

How do you make a 0.6 mm external thread from scratch? I would guess it would have to be single point threaded like any other unique thread. Except it is more difficult because the tap will need to be at least several times as long as that real short screw you made in the video. So it will need to be supported while threading it. No flexing allowed. Bottom support? Rear support? How? How? HOW?

Thread rolling perhaps? Two rolls with thin supports above and below. That might work.

So lets see that Mr. smartypants!
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Offline pardo-bsso

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Re: O.T. Machining a 0.6 mm Screw
« Reply #6 on: February 25, 2023, 07:20:38 pm »
You just need to use a support that travels with the tool.
Even a chunk of wood screwed into your carriage would do.

I'm pretty sure that Joe Pie has one or more videos about that.
 

Online jpanhalt

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Re: O.T. Machining a 0.6 mm Screw
« Reply #7 on: February 25, 2023, 07:25:09 pm »
you cheated. You used a die. Which begs the question, how do you make the die.

EDM? It can do pretty fine detail with hard steel.

Of course, I believe watchmakers had those dies long before EDM became common.
 

Offline coppercone2

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Re: O.T. Machining a 0.6 mm Screw
« Reply #8 on: February 25, 2023, 08:58:59 pm »
I suspect the swiss used to make these by hands with a file some how.
 


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