Good morning everyone, I was asking for some guidance about using rack and pinion as a linear system while having rack as the fixed part and pinion as the moving part. So I need some advices about it and how to do it like maybe some videos
You mean a linear actuator?
1 Like
Need to know about about size , load , and the project itself .keeping the pinion in contact with the rack , I could see as difficult
It maybe easier with a long thread and nut ,or a toothed belt loop .
Mr Google might give some ideas
1 Like
The greatest problem will be in the physical mounting and supporting of whatever you have driving the pinion part. Do you have a drawing of what you are building?
1 Like
Please post a picture of the rack and pinion you have selected, and explain how you will rotate the pinion gear.
1 Like
@jremington @Paul_KD7HB
I don't have a drawing yet, I am in designing stage. Most videos I saw on youtube showed fixed pinion and moving rack, like I mean linear motion is moved to the rack and it starts to move linearly. But for my case I want the opposite so I wanted any help on how do so or just a simple real life example in very short video is more than enough.
Don't be silly. There is nothing simple about driving a moving pinion gear, and using it for power takeoff.
Think it through and then come up with a better idea for your project.
Here is an example. I simply wanted more of these or just some general advices about it to reduce amount of adjustments I would need.
Simply look for some more examples. Use your computer skills!
How long do you think the loose wires in that video will last, in any real world application?
Man 
I asked for help if someone has some experience in similar project to advice me so why being rude? Cant help just ignore and thanks
(post deleted by author)
25 years ago, or so, I recorded a weekly TV program on Swiss railroads. Each week, the program included at least one segment on the use of rack and pinion just as you are describing. There are three versions used when the grade of the railroad is too steep for the steel on steel wheels to work. I watched one of the recordings just last week.
Search for "cog railroad" or "ladder rack". The ladder rack is used when the grade is too much for regular wheels, bus not so steep that the pinion will jump out of the pinion.
The next version for steeper grades is called a "locker rack". It uses dual pinions that fit on each side of the rack and have a locking shield to keep the pinions from stilling up off the rack.
There is a third version, but the name escapes me right now.
So, there are a bunch of words and phrases to search for.
Good luck and please return when you have a drawing of what you are designing.
1 Like
@abdelrahmanh,
The person you flagged is trying to help you with your project. Maybe concentrate more on providing the requested information and less on taking offence when the replies show the frustration of the people doing their best for you.
Edit: please stop making flags to the mods for trivial things.
Really appreciated, thank you.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.