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i don't do facebook sorry..


the more i look at this project.. the harder it seems to get..

these are supposed to be your ideas..  

waynep7122:
to get this turning and linear motion.. its going to require a tubular piece  with a pair of grooves in the exterior..  a ratcheting device to rotate the tube as a pin in the side of the tube can move the tube in and out and left and right..   the pin will have to have a quick release... so the transmission can be dropped into neutral from any position..  probably have compression springs to push it back to center.. where neutral is...

and probably a second pin that can be engaged to get to reverse..


2nd to 3rd gear is going to be the problem as it has to pass through the neutral position and rotate half way there..


the other problem with sequential shifter is how much motion for each position..   the shifter may continue to exert side force on the shift fork inside the transmission.. causing it to wear out as if the driver left his hand laying on the gear shift while in motion..

more to come...


 a few years back.. in indy car racing.. i thought up an idea for sequential shifting of the transmissions... i had a friend at that time who knew roger penske. i ask my friend to mention these ideas to him..   his reply was how did you know what they are working on in the secret race shop..

How to use the ratchet, pin & all to give the rod fore-aft & rotary motion? I'm not able to frame a picture of it in my mind..    

i wanted you to see that ratcheting devices are around..

i am still thinking about it..    

might have to have the tube where the shifter is attached... rotate like a gun barrel around the shaft... so each push forward..  causes the pin to slide into a different groove..  each reverse pull changes the rotation of the barrel moving it in the reverse direction..

this could have an additional stop.. so you could lock it out of neutral below first gear.. that would prevent it from going two steps below first which would put it in reverse..

or have dual ratchetting cams.. one for front rear. motion.. the other for angle changes..

just get the sample set up.. you can figure it from there..

if you use a piece of plastic water pipe with a threaded adaptor or threaded.. you can use either a TEE or a cross.. so the inner shaft can pass through fully for trial...  and you can use a short piece to a flange to mount it on a piece of wood..

i will work on a drawing later.. but i hope this will give you some idea..   some crazy fool was running around last night setting fire to cars in garages near my house..  the police are actually using the reverse 911 calling apartment managers to alert them to the problem.. i called the local TV station. mentioned to them.. that an announcement of how many cases of attempted murder they are going to charge these people with on top of arson .. as that should put them to a stop..  as arson gets 5 to 10 years..   attempted murder gets you a number with a L tacked on the end..  if its 10 to life.. or 25 to life..  

Check this out, I found it on some website...they are using the cam profile to push both the rods according to requirement, I think one is for the push/pull action & other for turning...



& these 2 rods are used in this fashion..


but I'm still waiting for your ratcheting cam design of which still I can't understand much  
I couldn't find the angles & the strokes because all my car has not yet been assembled..the gearbox, shifter assembly, engine..all are lying apart...  

measure the movement right at the transmission shift shaft.. thats even better.. if the transmission is out..

take the middle device you have just posted...  to control the lower device  to move the single rail shift rod..

you are probably going to need some kind of spring loaded device.. in the cam set up to change angles.. so going one direction..  the 2/3 shift.. the spring tension allows the shift shaft to move forward while spring pressure builds to the side.. the it snaps a few degrees of rotation into the shaft and then continues to the final resting position...

it is goes upward to forth gear.. it is just pushed in 2 position.. but the 3/2 shift.. the spring tension will have to exert side loading again .. but in the other direction..   just like when you go from 3rd to 2nd.. you exert a slight side force on the side of the stick shift lever.. to catch the next slot......  

but I feel that the system in my previous post gonna need more complex cam profiles or something...however, what you suggested seems comparatively easier..that is, using ratcheting barrel cam...
the profile can be like this..



& one more thing..I mistakenly said before that it was 4-speed gearbox, actually it's 5-speed one..



just stuck on how to take the 2 different(rec & blue) profiles from chart to the cam surface of single barrel cam...& please suggest on how to do the ratcheting part...I'm waiting for your drawings...  

hey now I understood the ratcheting concept..the one like in bike gearboxes..but the last thing remaining in the design which I can't get is the one i stated in my previous post...HOW TO GET THE 2 PROFILES(RED & BLUE)..in graph from my previous post..ON THE SAME CAM TOGETHER & HOW THE 2 FOLLOWERS WILL BE CONNECTED TO THE SHIFTER ROD  ..please  just explain(if possible)with a drawing how can it be done...
its the last thing to be done in the design..so can't wait..  

in the middle picture.. did you notice the roller follower for the outside contour of the cam.. thats the RED line...

don't look at the cam as being ROUND..  there are ONLY two points of contact..  the inner.. and the cam follower..

lay it out in a straight line...   be prepared to be able to shift one line or the other to allow for the offset between the 2 points of contact...


you might want to study geneva mechanism

google that...  as those are what is going to give you the ratcheting motion into a stepped rotary motion..

be sure to look for geneva mechanisms that have a short step and a long step.. as that will give you the ability to step between the short throw below first into neutral and into reverse.. another short throw but with a the longest twist..

now that i look at the geneva mechanism.. think about mounting a geneva mechanism cam directly on the shaft.. so you can move it through the 3 and a partial angle.. while another geneva mechanism might control the forward rearward movement of the shift shaft..
 

I know about geneva wheel..but as you said, 2 wheels would be required & thus the2 separate inputs..moreover the drivers must go a full circle to move the wheel one step..while if barrel cam with both the profiles is used, one single push with the ratchet & pawl mechanism would do the job easily...
this is the thing...



this way its less complicated..what do you say?  

you are right..

i can think up inventions.. and am really good at helping others work out a few details...

i have a few ideas for the current crop of fast ferries and ships that use jet pumps for propulsion..

i am also a terrible practical joker.. there was a surplus electronics store i used to visit a lot.. knew the assistant manager really well..   one day when i walked in..  somebody was sort of demanding that he find some 32 volt wall transformers..  and my friend was saying that he had never seen any at that voltage in the store.. as i walked up .. i mentioned 2 other electronic supply stores nearby that might have 36 volt  versions..  he said he was an inventor.. that he just needed 3 for prototypes..  that he had 6 patents and this was going to be a 7th hopefully...   i ask him if he had a good patent attorney.. as i have one idea that i need to get right on the first try..  as it will be a big seller.. and save lives..   he felt his pockets then said that the attorneys number was at home..  i said.. let me give you my phone number and give me a call.. at that point.. without even asking my friend who worked there pulled his catalog out and wrote my name and phone number on it..  then slid it across the counter back toward the fellow..  

he noticed this.. i ask how he liked my newest idea.. did he think that its patentable.. or should i just go for a a copyright .. he kept asking what it was..  i kept talking..   then... i said it works really well don't you think..  he ask again.. what is it.. i said.. its a telepathic business card processor..  he said a what?    see i said.. i took all of my thought power and forced him to take out his pen and write down my name and phone number... see its right there..   think of how much money that will save in business cards..   he just kind of stood there.. muttering how..!!!!!  i kept asking .. do you think i can market it..  within a few seconds.. he grabbed his bag.. and ran from the store..    perhaps he thought that i was going to steal his inventions from his mind..  i did follow him to the parking lot to tell him it was just a practical joke.. but his eyes got big when he saw me and he sped away..  

happy new year...

check out this gear set.... from another of the over 50 sites on this server

http://www.stupidvideos.com/video/just_plain_stupid/Gear_Cube_1/  

be sure to check out the Lego Robot Does A Rubiks Cube that might come up after the gear cube...  

great!! don't know how people come up with things like that...
see this interesting paradoxical gear train..

http://www.youtube.com/watch?v=-1Gfc1Iq0GY

& let me say this in Sanskrit for you..  
  navvarshaabhinandanam  i.e. new year's greetings  



hope to receive guidance from you in future too..perhaps through mails...  

it was fun..  i hope all goes well with you...

my grade school teacher actually wrote a book almost 50 years ago... sanskrit to english dictionary ... self published printed in india of course....  my family had ONE copy..  it was her life's work....  

my mom and i after the sumatra earthquake and tsunami that killed so many people... decided to do something.. i wish we had though of it before as tens of thousands of people might have been saved...

we decided to call major hotel chains main offices.. to have them send alerts to all of their hotel managers that a tsunami is happening... as all major hotel managers have the local mayors and police chiefs personal phone numbers.. since major hotels are staffed 24 hours a day.. and all are hooked up via the web..  its just a few taps of a key to do this...    we really got the ball rolling for the chile and the japan earthquake..

if you watch the world earthquake maps.. it looks like the pacific plate is trying to turn slightly..  as there is a significant amount of small activity..  here in los angeles .. there is an earthquake prep video.. shows a normal family in their living room watching TV..  then they are all floating in the air.. and the room is turned upside down.. they leave the room through the upside down doorway... saying.. earthquake prep.. are you ready..  

say... here is one more that you can think about..

converting alternators to windmill generators...

http://www.youtube.com/watch?v=Kx187qlNkkw&feature=fvwrel

there are available for this style of general motors delco alternator and many others in the delco family.. Self Energizing voltage regulators..  that all you need is being hooked properly to a battery and spinning the alternator to make it charge..   no need to build a custom permanent magnet rotor.. no need to have a charge controller..  as the voltage regulator maintains the exact output..    using an automotive wheel bearing assembly.. where the bearing is supported in a mounting flange..  with a hub where the brake rotor and then the tire would be mounted to mount the blades...   an even better idea is to use the entire automotive steering knuckle assembly...  so you get the wheel bearing assembly.. already mounted.. the brake rotor and even a brake caliper mounted..  the brake caliper can be used to stop the blade..    mounting the alternator where the CV shaft would normally be..   using a second wheel bearing mounted in a steering knuckle to mount the pole... so again the brake rotor could be used to hold the angle into the wind...  if a vented brake rotor is used..  once could machine the rotor to allow a cogged belt or some kind of timing chain to allow a stepper motor to position the assembly pointing into the wind...