Author Topic: that small little bastard  (Read 1454 times)

Oli_lar

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Re: that small little bastard
« Reply #15 on: December 14, 2007, 05:29:33 AM »
I've seen plenty of gears like that in CD mechanisms before, its probably a standard part.
Take dimensions and send them to a gear expert. Also i'm sure that one could be made for a mass custom order....

D-Lite

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Re: that small little bastard
« Reply #16 on: December 14, 2007, 07:46:58 AM »
I've seen plenty of gears like that in CD mechanisms before, its probably a standard part.
Take dimensions and send them to a gear expert. Also i'm sure that one could be made for a mass custom order....
I found quite a few vendors that make custom gears but you'd probably have to order a minimum of $500 worth or some such.  BUT, that money could probably be recouped quickly since this problem seems to be pretty common.  I'll check some of the non-functioning ones I have for this and like I said, 10-12 of these repaired quickly makes up a big portion of that investment.
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spenoza

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Re: that small little bastard
« Reply #17 on: December 14, 2007, 12:26:02 PM »
Why order custom if we don't have to? Even if they are standard you'd likely have to purchase several.
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D-Lite

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Re: that small little bastard
« Reply #18 on: December 14, 2007, 12:57:19 PM »
Why order custom if we don't have to? Even if they are standard you'd likely have to purchase several.
Of course, I'm just saying that if necessary, I'd consider ordering some.
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spenoza

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Re: that small little bastard
« Reply #19 on: December 15, 2007, 03:14:02 AM »
I would definitely consider buying a "refurbished" unit from someone on this forum. As long as it'll talk to my cute little PCE Core.
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Tatsujin

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Re: that small little bastard
« Reply #20 on: December 16, 2007, 04:52:23 PM »
So, i finally measured the gear wheel and hope the result contains sufficient inforations to clone the wheel. sorry for the pathetic drawing and amateurish presentation :oops:



and now, let's do it :mrgreen:


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Keranu

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Re: that small little bastard
« Reply #21 on: December 16, 2007, 05:05:59 PM »
Haha, I love your CAD diagram!
Quote from: Bonknuts
Adding PCE console specific layer on top of that, makes for an interesting challenge (no, not a reference to Ys II).

guyjin

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Re: that small little bastard
« Reply #22 on: December 16, 2007, 07:12:01 PM »
So, i finally measured the gear wheel and hope the result contains sufficient inforations to clone the wheel. sorry for the pathetic drawing and amateurish presentation :oops:

Are you kidding? that's awesome!
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Tatsujin

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Re: that small little bastard
« Reply #23 on: December 16, 2007, 07:43:14 PM »
yeah..thanx so far :)

but there're still some tolerance issues which i couln't take to account > exact pitch teeth, depth of teeth etc.

also i would be glad, if someone may confirm if there're really 23 teeth on the bigger wheel, since mine had lost too much to reconstruct the exact amount due to less information. but i believe there must be 23 rather than 24 (but which could be still in the possible range). therefore the exact pitch between each tooth is very important.
www.pcedaisakusen.net
the home of your individual PC Engine collection!!
PCE Games coundown: 690/737 (47 to go or 93.6% clear)
PCE Shmups countdown: 111/111 (all clear!!)
Sega does what Nintendon't, but only NEC does better than both together!^^

elnino

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Re: that small little bastard
« Reply #24 on: December 16, 2007, 10:54:24 PM »
That's some serious reverse engineering! :clap:
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D-Lite

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Re: that small little bastard
« Reply #25 on: December 17, 2007, 03:37:31 AM »
yeah..thanx so far :)

but there're still some tolerance issues which i couln't take to account > exact pitch teeth, depth of teeth etc.

also i would be glad, if someone may confirm if there're really 23 teeth on the bigger wheel, since mine had lost too much to reconstruct the exact amount due to less information. but i believe there must be 23 rather than 24 (but which could be still in the possible range). therefore the exact pitch between each tooth is very important.
I'll pull one apart soon and double check.  One thing to note is that the diameter is usually measured to the midpoint of the teeth, not the tip.  So right before the tooth tapers off, that's the end point.
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Tatsujin

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Re: that small little bastard
« Reply #26 on: December 17, 2007, 03:48:33 AM »
that was one of the problem i had, that i couldn't measure the exact dimension of each teeth since they're too small. so therefore i took the endpoints, since that would be the max. allowed space to its neighboring wheels :oops:
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the home of your individual PC Engine collection!!
PCE Games coundown: 690/737 (47 to go or 93.6% clear)
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Sega does what Nintendon't, but only NEC does better than both together!^^

Tatsujin

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Re: that small little bastard
« Reply #27 on: December 17, 2007, 05:31:18 PM »
just for the interested people in here. some inside shots:



 :)
« Last Edit: December 17, 2007, 05:34:27 PM by Tatsujin »
www.pcedaisakusen.net
the home of your individual PC Engine collection!!
PCE Games coundown: 690/737 (47 to go or 93.6% clear)
PCE Shmups countdown: 111/111 (all clear!!)
Sega does what Nintendon't, but only NEC does better than both together!^^

nat

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Re: that small little bastard
« Reply #28 on: December 17, 2007, 05:36:01 PM »
Quite different from the Duo, isn't it?