linear actuator shifter...
Thread Starter
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just another Rockwell looser
Joined: Feb 2003
Posts: 4,042
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From: Cocoa, FL
linear actuator shifter...
ok folks...
this is my plan.....instead of running a mechanical linkage for my 205, my plan is to use a linear actuator instead, problem is, i cant seem to find one with a 1" stroke....which would be about perfect....i only need one for the 205 b/c its my first case and would leave it in 2wd the whole time anways....the total stroke of the shift rail from hi to low range is about .9"
i could run a air shifter just fine but i thought this was cooler and less parts and more reliable...
what do you think of this design?
can somone help me find what im looking for?
has anyone done this?
disadvantages?
thanks, Nick
this is my plan.....instead of running a mechanical linkage for my 205, my plan is to use a linear actuator instead, problem is, i cant seem to find one with a 1" stroke....which would be about perfect....i only need one for the 205 b/c its my first case and would leave it in 2wd the whole time anways....the total stroke of the shift rail from hi to low range is about .9"
i could run a air shifter just fine but i thought this was cooler and less parts and more reliable...
what do you think of this design?
can somone help me find what im looking for?
has anyone done this?
disadvantages?
thanks, Nick
Post Fiend
Joined: Jun 2004
Posts: 8,147
Likes: 1
From: Joppa, Maryland
Maybe using some linkages to manipulate the length of the stroke? Could be as simple as moving a pivot point until you find the desired length.
_______
^ * ^ t-case
The first carrot would be the actuator. Just move the asterisk where it needs to go. A plus to this idea is if you have an actuator with a longer stroke you will gain mechanical advantage.
This does add more parts though. Maybe someone will find one with the correct stroke.
_______
^ * ^ t-case
The first carrot would be the actuator. Just move the asterisk where it needs to go. A plus to this idea is if you have an actuator with a longer stroke you will gain mechanical advantage.
This does add more parts though. Maybe someone will find one with the correct stroke.
Posting Guru
Joined: Nov 2004
Posts: 2,155
Likes: 1
From: sunny fla sometimes windy
http://www.skycraftsurplus.com/index...TS&Category=24
Head over here man they got what you need. The website sucks but take a ride over and bring plenty of money. They got good deals on welding cable, marine wire, aluminum diamond plate, and things you didn't even know you needed!!
Head over here man they got what you need. The website sucks but take a ride over and bring plenty of money. They got good deals on welding cable, marine wire, aluminum diamond plate, and things you didn't even know you needed!!
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
Most DC linear actuators only push, or pull, this means that you will need two. Since you have to run two of them, you will have to run a "bell crank" assembly. This would solve the push pull issue, and will also solve your stroke issues.
I see plenty of linear actuators that have 1" stroke.
What style were you looking for? Linear solenoid, Column, Rotary. air slide?
A simple electric solenoid style with a 1" stroke can be bought for around 25 bucks each through Mc Master Carr, but they only have about a 140 oz pull / push, and this is a 59 watt model. Gonna have to have a real good relay(s) for this guy.
I see plenty of linear actuators that have 1" stroke.
What style were you looking for? Linear solenoid, Column, Rotary. air slide?
A simple electric solenoid style with a 1" stroke can be bought for around 25 bucks each through Mc Master Carr, but they only have about a 140 oz pull / push, and this is a 59 watt model. Gonna have to have a real good relay(s) for this guy.
Thread Starter
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just another Rockwell looser
Joined: Feb 2003
Posts: 4,042
Likes: 0
From: Cocoa, FL
Originally Posted by blue beast
http://www.skycraftsurplus.com/index...TS&Category=24
Head over here man they got what you need. The website sucks but take a ride over and bring plenty of money. They got good deals on welding cable, marine wire, aluminum diamond plate, and things you didn't even know you needed!!
Head over here man they got what you need. The website sucks but take a ride over and bring plenty of money. They got good deals on welding cable, marine wire, aluminum diamond plate, and things you didn't even know you needed!!
i just went there tuesday for the first time....b/c i was going to run air shift and my brother told me about it.....i spent a hour in there and didn't even see half of the store.....so many kickass little gadgets.....i wanted *****ing everything....im def. going back just pick up some things....i didn't see any linear acutators there but i wouldn't doubt they had them for a second....THAT PLACE ROCKS!!!!!!!!!!!
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Thread Starter
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just another Rockwell looser
Joined: Feb 2003
Posts: 4,042
Likes: 0
From: Cocoa, FL
im thinking ill use
this:
http://www.firgelliauto.com/product_...roducts_id=110
and this with it:
http://www.firgelliauto.com/product_...roducts_id=111
what do yall think of this?
this:
http://www.firgelliauto.com/product_...roducts_id=110
and this with it:
http://www.firgelliauto.com/product_...roducts_id=111
what do yall think of this?
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Posting Guru
Joined: Nov 2004
Posts: 2,155
Likes: 1
From: sunny fla sometimes windy
How about taking apart a power seat!! I used a 300zx seat someone gave me for the forward back motor and the air pump for the lumbar support. Find a crown vic seat and the controls, If it can move 280lbs I am sure it can move the little trans lever!! Did you happen to notice the price for a full sheet of diamond plate? I need to fix my tailgate and doors, they had a good price a while ago.
Make sure to leave the woman at home and try to get there early in the afternoon so you can spend more time, I am pretty sure they have them, If they don't they can find it!! Have you been to Allmet in Ormond beach yet, If you need scrap metal or new metal they got airplane fuselages and sometimes brand new sheets of steel and aluminum somebody cut one part out of and it ends up there, Bar stock, pipe, angle anything you can name they got it. When I get the change$$ I am visiting them for my rollbar tubing.
Make sure to leave the woman at home and try to get there early in the afternoon so you can spend more time, I am pretty sure they have them, If they don't they can find it!! Have you been to Allmet in Ormond beach yet, If you need scrap metal or new metal they got airplane fuselages and sometimes brand new sheets of steel and aluminum somebody cut one part out of and it ends up there, Bar stock, pipe, angle anything you can name they got it. When I get the change$$ I am visiting them for my rollbar tubing.
Last edited by blue beast; Oct 12, 2007 at 08:27 AM. Reason: add a question
Thread Starter
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just another Rockwell looser
Joined: Feb 2003
Posts: 4,042
Likes: 0
From: Cocoa, FL
thats a good idea about the seat....it maybe a little long stroke though...
i never heard/been to Allmet, but skycraft is THE *****!!!!!
just so many little mechanical gadgets there.....theyve got so much chit from cool stuff like load cells to air rams of all sizes to damn near any capacater......everything....ill def. be going back...
i never heard/been to Allmet, but skycraft is THE *****!!!!!
just so many little mechanical gadgets there.....theyve got so much chit from cool stuff like load cells to air rams of all sizes to damn near any capacater......everything....ill def. be going back...
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
a seat runs on a track, and uses an exposed pinion gear to drive the track right? Ever get a penny or dime stuck in the seat?
what is going to happen when this little motor gets mud in this track?
I think this will have to be a sealed actuator.
what is going to happen when this little motor gets mud in this track?
I think this will have to be a sealed actuator.
Thread Starter
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just another Rockwell looser
Joined: Feb 2003
Posts: 4,042
Likes: 0
From: Cocoa, FL
Originally Posted by quadzjr
Post Fiend
Joined: Jul 2006
Posts: 6,948
Likes: 44
I dig that one too. I see that that has a rating of 200lbs. Since this is an acme screw type actuator, I would imaging that this rating as at the slowest possible ratio. Might be kinda slow at this force.
Have you determined how much force is required to actually engage the case? Will the speed / torque ratio be enough, or will there be a compromise?
I like the idea, but most of us that have electronic actuated cases ditch the whole thing for a more reliable manual system.
Don't get me wrong, I like the concept, but electrical components have to bring along some sort of increased failure rate.
I ended up using a cable to actuate my front case (203 range box) and even this is subject to a small degree of failure. The morse cable (though kinda sealed) gets all sorts of mud and such in the housing.
Reliability is the only thing I am on the fence about. Guess we will have to wait and see how yours comes out.
Have you determined how much force is required to actually engage the case? Will the speed / torque ratio be enough, or will there be a compromise?
I like the idea, but most of us that have electronic actuated cases ditch the whole thing for a more reliable manual system.
Don't get me wrong, I like the concept, but electrical components have to bring along some sort of increased failure rate.
I ended up using a cable to actuate my front case (203 range box) and even this is subject to a small degree of failure. The morse cable (though kinda sealed) gets all sorts of mud and such in the housing.
Reliability is the only thing I am on the fence about. Guess we will have to wait and see how yours comes out.