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29 Mar 2024 11:01:15 EDT (-0400)
  Involute spur gear (Message 11 to 20 of 33)  
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From: Bald Eagle
Subject: Re: Involute spur gear
Date: 17 Dec 2018 14:10:00
Message: <web.5c17f3fc540b848f765e06870@news.povray.org>
StephenS <nom### [at] nomailcom> wrote:
> I would like to make something with gears, but not sure what.
>
> Three of the gears I've cut from sheet metal (thirteen in total) and
> some I've modeled.

Nice - good to see you've worked out the undercut on the small gear   :)

Clock
http://www.woodenclocks.co.uk/
Orrery
Antikythera mechanism
Search for Lego videos
centrifuge
thread/rope bobbin winder
apple peeler
hand / foot powered generator
hand drill / egg beater
cider press
pump
winch
cycloid drawing machine / Spirograph / harmonograph
knitting machine
https://www.google.com/search?q=creelman++knitting
paper / sheet metal corrugator

I'm thinking thee's gotta be a pantograph type drawing tool that uses geared
armatures

http://507movements.com/


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From: Stephen
Subject: Re: Involute spur gear
Date: 17 Dec 2018 15:06:27
Message: <5c1801c3$1@news.povray.org>
On 17/12/2018 19:07, Bald Eagle wrote:
> Antikythera mechanism

Literally LOL.

There is a word for people like you. :P



-- 

Regards
     Stephen


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From: Bald Eagle
Subject: Re: Involute spur gear
Date: 17 Dec 2018 19:00:00
Message: <web.5c18379f540b848f765e06870@news.povray.org>
Stephen <mca### [at] aolcom> wrote:
> On 17/12/2018 19:07, Bald Eagle wrote:
> > Antikythera mechanism
>
> Literally LOL.
>
> There is a word for people like you. :P

It's probably in Scottish.  :D
He should still totally do it  :)

https://www.youtube.com/channel/UCworsKCR-Sx6R6-BnIjS2MA


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From: StephenS
Subject: Re: Involute spur gear
Date: 17 Dec 2018 19:40:38
Message: <5c184206@news.povray.org>
On 2018-12-16 10:54 p.m., StephenS wrote:
...
> Three of the gears I've cut from sheet metal (thirteen in total) and 
> some I've modeled.

I'll need to wait for more material to show up.

I think I should start with something easier, planetary gears (epicyclic 
gears). Then work my way up to something with more parts.

The gears are generated from a web site, 
http://hessmer.org/gears/InvoluteSpurGearBuilder.html

I download the .dxf file, feed it into the Plasma Cutter, grind some of 
the rough edges.

I model a gear tooth, from the .dxf file, into a prism{}.

Stephen S


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Attachments:
Download 'gear_pic_.png' (1127 KB)

Preview of image 'gear_pic_.png'
gear_pic_.png


 

From: StephenS
Subject: Re: Involute spur gear
Date: 17 Dec 2018 19:43:40
Message: <5c1842bc$1@news.povray.org>
On 2018-12-17 2:25 a.m., Thomas de Groot wrote:
...
> An Aztec Calendar is what I would attempt.
> 

The calendar looks like two rings that slide on each other, or am I 
seeing it wrong? Gears in stone?

Stephen S


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From: StephenS
Subject: Re: Involute spur gear
Date: 17 Dec 2018 19:45:28
Message: <5c184328$1@news.povray.org>
On 2018-12-17 9:13 a.m., jr wrote:
...
> I've always liked mobiles and such, so I'll suggest some kind of "kinetic art"
> sculpture/structure/arrangement.
...Small arrangement to start I think.

Stephen S


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From: StephenS
Subject: Re: Involute spur gear
Date: 17 Dec 2018 19:47:46
Message: <5c1843b2$1@news.povray.org>
On 2018-12-17 10:30 a.m., ingo wrote:
...
> http://americanhistory.si.edu/collections/search/object/nmah_998869
> 
> ingo
> 

More gears and less other things to start I think.

Stephen S


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From: StephenS
Subject: Re: Involute spur gear
Date: 17 Dec 2018 19:52:16
Message: <5c1844c0$1@news.povray.org>
On 2018-12-17 2:07 p.m., Bald Eagle wrote:
...
> Nice - good to see you've worked out the undercut on the small gear   :)
...
I only worked out what web site to download from ;-)
...>... list longer than one life time to complete...
> 

Stephen S


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From: StephenS
Subject: Re: Involute spur gear
Date: 17 Dec 2018 21:08:51
Message: <5c1856b3@news.povray.org>
On 2018-12-17 7:40 p.m., StephenS wrote:
...
> I think I should start with something easier, planetary gears (epicyclic 
> gears). Then work my way up to something with more parts.
...30 tooth inside
4 x 10 tooth outside

Comments Welcome:

Stephen S


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Attachments:
Download 'gear_test_a.png' (73 KB)

Preview of image 'gear_test_a.png'
gear_test_a.png


 

From: Gregor Szaktilla
Subject: Re: Involute spur gear
Date: 17 Dec 2018 23:35:28
Message: <5c187910$1@news.povray.org>
StephenS schrieb:
> Comments Welcome:

The gears would be much more impressive if they were moving.

Regards,

Gregor


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