H pattern gearbox paddle shifter

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spacer
8
Joined: Sun Nov 01, 2009 7:51 pm

Re: H pattern gearbox paddle shifter

Post by spacer » Mon Feb 01, 2016 11:30 pm

looks neat!

i'm interested why you choose separately mounted valves instead of a (more compact) manifold-style mounting? like festo VUVG series for example.

cmcraeslo
6
Joined: Thu Jan 21, 2016 8:38 am

Re: H pattern gearbox paddle shifter

Post by cmcraeslo » Tue Feb 02, 2016 8:24 am

Hey.

I tried that in the model too. It's just hard to place everything really, It may look simple in the end, but to get there :)
It would make my unit much bigger and heavier. They're small together, but it's hard to put a big block of valves anywhere in the system and still be within the reasonable size. I'm now trying some miniature valves that would ideally mount directly onto the cylinder, but they flow too slow and have really bad mounting points. The manufactures is designing new valves that have higher flow (100+ l/min) so hopefully I will be able to make it smaller.
Also, these islands are also more expensive than regular piping, not to mention festo valves :)

If you have any info on where to get miniature valves that flow more than 100 l/min and are reasonably priced, I'd be more than happy to check them out. Or and idea with different valve layout.. I'm still throwing everything together.

Thanks!

piast9
26
Joined: Mon Mar 15, 2010 11:39 pm

Re: H pattern gearbox paddle shifter

Post by piast9 » Tue Feb 02, 2016 9:05 am

Very nice project! From the video at the first post it seems to be working great.

I am by no means a car expert but I realize how they work. I just wonder if another approach wouldn't be easier. Here you use the H-pattern gearbox and attach to it complicated actuators that operate the gearbox controls. How difficult would be another approach - to rebuild the gearbox itself and change the selector mechanism to a drum-type, like in regular sequential gearboxes?

For sure another skills would be required - not mostly electronic/pneumatic but more purely mechanic ones but how the difficulties of these approaches differ?

cmcraeslo
6
Joined: Thu Jan 21, 2016 8:38 am

Re: H pattern gearbox paddle shifter

Post by cmcraeslo » Tue Feb 02, 2016 9:14 am

Well, I wanted a paddle shifting gadget :)
I first had a H to sequential converter, so basically sequential shifting, but I wanted to upgrade it to paddle shifting, so I added actuators to the sequential shifter. Then I thought why not just make a paddle shifting so here's why.

That being said, for me to convert this to a sequential gearbox would be much harder so I went with this one. And also, I can mount this to any car I want :)

piast9
26
Joined: Mon Mar 15, 2010 11:39 pm

Re: H pattern gearbox paddle shifter

Post by piast9 » Tue Feb 02, 2016 11:41 am

That's true. The ease of installation of your solution is a big advantage. And you don't have to mess with really oily bits in the car. Please, do not get me wrong, I don't want to criticize, your project works great and I am sure you know what you are doing and you had a great fun building it.

cmcraeslo
6
Joined: Thu Jan 21, 2016 8:38 am

Re: H pattern gearbox paddle shifter

Post by cmcraeslo » Tue Feb 02, 2016 11:43 am

That's ok, I always like alternative solutions. This is the only way to make a progress. Thanks!

fredtome
0
Joined: Sat Jul 10, 2010 10:39 pm

Re: H pattern gearbox paddle shifter

Post by fredtome » Tue Feb 02, 2016 2:11 pm

Very nice design and works perfectly. Nice idea. I would like to know more about this.

cmcraeslo
6
Joined: Thu Jan 21, 2016 8:38 am

Re: H pattern gearbox paddle shifter

Post by cmcraeslo » Tue Feb 02, 2016 2:40 pm

Sure. I'm happy to share, that's the reason I published this in the first place :)
What did you want to know?

mzivtins
10
Joined: Wed Feb 29, 2012 11:41 am

Re: H pattern gearbox paddle shifter

Post by mzivtins » Mon Feb 08, 2016 1:32 pm

3500euro?

I love this, well made and the video proves it works really nicely, this is not only a cheap and accessible option for track cars, but especially for enthusiast car owners who would kill for a sequential shifting arrangement (this is me all over!)

Given that it uses the standard transmission, can you still get to neutral from any gear? Im guessing that is a stupid question as quite clearly you just reset the valves to what is programmed as the 'neutral' position... how do you engage neutral? pull both paddles?

fredtome
0
Joined: Sat Jul 10, 2010 10:39 pm

Re: H pattern gearbox paddle shifter

Post by fredtome » Mon Feb 08, 2016 3:02 pm

I would like to know what you are planning to do with this and if you think that your system could be applied to a road legal car easily.

I would love to have a system to test on a project that I am working on.

ojlopez
5
Joined: Fri Oct 24, 2014 9:33 pm
Location: Guatemala

Re: H pattern gearbox paddle shifter

Post by ojlopez » Mon Feb 08, 2016 4:09 pm

Marvelous, incredible skill.

cmcraeslo
6
Joined: Thu Jan 21, 2016 8:38 am

Re: H pattern gearbox paddle shifter

Post by cmcraeslo » Mon Feb 08, 2016 8:18 pm

Hey guys.

I think this could be easily installed in a road legal car, except the "legal" part :)
I've been contacted by a pneumatic expert and we're working on optimizing the system and costs. So far it looks pretty good, we managed to get rid of 3 valves and these multiposition cylinders that cost me a fortune to build, can easily be replaced with different, off the shelf ones. So I should be able to drastically reduce the costs.

I'm actually thinking of publishing the complete tech details/plans and just offer the ECU that manages everything.

There's a N button on the steering wheel (you can see it in the video in the beginning). This button needs to be pressed if I want to shift from N to 1 or N to 1. If I hold N + clutch for 3 seconds, it recovers to neutral from any gear position (valid or invalid)

mzivtins
10
Joined: Wed Feb 29, 2012 11:41 am

Re: H pattern gearbox paddle shifter

Post by mzivtins » Wed Feb 10, 2016 11:27 am

I WANT ONE!!! :lol:

If you ever get round to selling these, i would happily fit it to my mazda rotary build, legal or illegal no one looks past the fact my car has no front number plate anyway... i could be hauling a dead body in the back seat, but nothing is as bad as missing a number plate here. :lol:

cmcraeslo
6
Joined: Thu Jan 21, 2016 8:38 am

Re: H pattern gearbox paddle shifter

Post by cmcraeslo » Wed Mar 16, 2016 11:26 pm

Hey guys!

Just wanted to post an update of the project. I've now managed to reduce the size a little bit with this 2nd evolution. I will now go into reducing the actuators. Here are few pictures:

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woohoo
1
Joined: Sun Aug 10, 2008 12:12 am

Re: H pattern gearbox paddle shifter

Post by woohoo » Sat Mar 19, 2016 8:18 pm

Well it looks impressive!

Much neater than the F1 / Cambiocorsa / Selespeed systems of old.

Will this be adaptable to "all" H shift cars ?
The only way to close a stupid question is to give a smart answer