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-   -   Custom manual clutch (http://www.diygokarts.com/vb/showthread.php?t=19841)

ddowns46 11-23-2012 12:42 AM

Custom manual clutch
 
2 Attachment(s)
Hi all, been browsing around for a quite a while. I grew up riding mini bikes, go karts, and gas scooters. I always thought it would be cool to have a manual clutch as opposed to a centrifugal clutch or torque converter. So i designed and prototyped one :thumbsup:

This clutch will bolt on to any horizontal shaft engine with a 3/4" shaft. The clutch will be disengaged via the lever arm shown in the pics above. This lever will be either actuated by foot pedal or handlebar lever.

I still haven't done any testing yet because I still need to have the clutch liner installed, but I am fairly confident that the clutch will perform well (given it's the first prototype!).

I think having a manual clutch on a go kart would be advantageous for the following reasons:

1. positive clutch engagement. It will only slip when the driver wants it to slip.
2. decompression braking
3. ability to bump start.
4. burnouts! and wheelies for the minibikers
5. gives kids a chance to learn how to use a clutch before graduating to dirtbikes and cars with manual transmissions.
6. changing engagement speed does not require a special tool and expensive centrifugal clutch.
7. clutch feathering to get up steep hills.
8. potential advantages in go kart and mini bike racing


Let me know what you think!:wai: I will be sure to post videos when I've got it up and running.

souperman000 11-23-2012 12:46 AM

That thing is really neat. A very clean prototype.

I think we would all love some more information on how it works. A video would be great too! :thumbsup:

P.S. You should probably get a patent out on that thing. Wouldn't want anyone stealing your idea. (And i would hope no one here wants to).

Oh - :welcome2: to the forum! Glad you finally (:toetap05:) decided to join.

B man 11-23-2012 12:47 AM

Dude this is pretty cool! Defiantly wanna see it working.

B man 11-23-2012 12:48 AM

Quote:

Originally Posted by souperman000 (Post 245609)
That thing is really neat. A very clean prototype.

I think we would all love some more information on how it works. A video would be great too! :thumbsup:

P.S. You should probably get a patent out on that thing. Wouldn't want anyone steling your idea. (And i would hope no one here wants to).

Oh - :welcome2: to the forum! Glad you finally (:toetap05:) decided to join.

thats why you don't go to in depth about the inner workings.:lolgoku:

Even though i already figured it out. haha

souperman000 11-23-2012 12:50 AM

Quote:

Originally Posted by B man (Post 245612)
thats why you don't go to in depth about the inner workings.:lolgoku:

I know but it is such a cool little piece of equipment. :surrender:

ddowns46 11-23-2012 12:52 AM

Haha, I'm sure that some shop in China is trying to reverse engineer it from the pictures as I type!

landuse 11-23-2012 02:59 AM

Nice idea.

gvfc2 11-23-2012 04:42 AM

if you get it working def patent it and start to sell. i would like to buy one

fowler 11-23-2012 05:15 AM

once u pantent it u will have to show us the insides
i rekon iv got a good idea how it works but i wont put it up just yet
looks great
hope it works great

jman231994 11-23-2012 05:45 AM

What are your expectations for heat resistance and wear? If you could actually feather it like you said without wearing it out quickly it would be a god send for karts, let us make our own clutched gearbox's too :D

DeathStarr89 11-23-2012 07:40 AM

Nice work!

if you end up making them i'd be up for one with a 1" shaft diameter. Clutch dump burnouts with a GX390 would be fun!

OzFab 11-23-2012 09:44 AM

Quote:

Originally Posted by B man (Post 245612)
Even though i already figured it out. haha

Quote:

Originally Posted by fowler (Post 245645)
i rekon iv got a good idea how it works but i wont put it up just yet
looks great
hope it works great

:iagree: ALthough, I have not figured it out yet. I'm sure I'll be like "ohhhh, that's how it works" when I do find out :D

devino246 11-23-2012 10:14 AM

Does it work similarity to an automotive clutch? I've always thought making one similar would be pretty easy for someone with access to the proper tooling.

Doc Sprocket 11-23-2012 11:04 AM

Excellent. Send me one for beta testing, and I'll have all the test data, conditions and reports to you ASAP! Please? :D

Nodroz 11-23-2012 11:06 AM

Quote:

Originally Posted by toystory_4wd (Post 245688)
Excellent. Send me one for beta testing, and I'll have all the test data, conditions and reports to you ASAP! Please? :D

Haha, smart!

I would love to see this working! Just awesome! :cheers2:

Amped 11-23-2012 11:28 AM

Very freaking cool! Looking forward to a demo.

B.M.800 11-23-2012 12:20 PM

Cool beans man!
Hope they work out well, I might want one... or 2.
:D

fowler 11-23-2012 04:24 PM

Quote:

Originally Posted by devino246 (Post 245682)
Does it work similarity to an automotive clutch? I've always thought making one similar would be pretty easy for someone with access to the proper tooling.

think inside a modern manual box

jamyers 11-23-2012 04:46 PM

Quote:

Originally Posted by fowler (Post 245726)
think inside a modern manual box

I can't get my head inside there! :ack2::roflol:

r_chez_08 11-23-2012 05:47 PM

Really clean piece there, nice one.
What would you estimate you could sell these for and still get a good margin?


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