modified tower

[ector]

hi guys, the above work is almost finished, you're going out really well. Now I have to place a couple of boring things and, I would like to ask you a tip.
the first thing is: do you know any site where they produce differential mechanical martinees? I just found this and I don't really like it.http://www.amannesmann.de/4ital/start.htmthe second: for a zenital rotation I thought of this pencil that "push" and "tira" the part that rotates zenitally but, there is a better method without that you swallow much??? Maybe it's more effective? ? ? ?

Thank you very much

 

[PaoloColombani]

hi guys, the above work is almost finished, you're going out really well. Now I have to place a couple of boring things and, I would like to ask you a tip.
the first thing is: do you know any site where they produce differential mechanical martinees? I just found this and I don't really like it.http://www.amannesmann.de/4ital/start.htmthe second: for a zenital rotation I thought of this pencil that "push" and "tira" the part that rotates zenitally but, there is a better method without that you swallow much??? Maybe it's more effective? ? ? ?

Thank you very much

a pencil? Does that telescope weigh tons?
I'm sorry that I only saw the discussion now, I don't want to break the boxes when you are already at the end of the project, but usually when you design a device for the first time you try to avoid reinventing the wheel, maybe looking first at how others did in similar applications, at the limit buying a very expensive apparatus to see how it is done inside.

 

[ector]

a pencil? Does that telescope weigh tons?
I'm sorry that I only saw the discussion now, I don't want to break the boxes when you are already at the end of the project, but usually when you design a device for the first time you try to avoid reinventing the wheel, maybe looking first at how others did in similar applications, at the limit buying a very expensive apparatus to see how it is done inside.

I've seen and reviewed around, but valid extensions I haven't found. I've already examined the model you've reported and it's not my case....cmq thanks for the surgery.

a clarification: I hate to "copy" what others did, maybe wrong, but I always try to find alternative ways, maybe better. otherwise too easy life ... :wink::wink:

 

[Fulvio Romano]

a clarification: I hate to "copy" what others did, maybe wrong, but I always try to find alternative ways, maybe better. otherwise too easy life ... :wink::wink:

chartres said: "We are like dwarves standing on the shoulders of the giants, so that we can see further than them not because of our stature or the sharpness of our sight, but because standing on their shoulders we are higher than them"

The giants are the ones who studied before us...

 

[PaoloColombani]

a clarification: I hate to "copy" what others did, maybe wrong, but I always try to find alternative ways, maybe better. otherwise too easy life ... :wink::wink:

In fact it is not a question of copying, but not to start again every time from scratch, having to repeat the bad experiences of design. It's just about taking a cue.
It is always a good attitude to seek alternative ways, if we are based on what has been done so far. This is how technology evolves.

to return to us, if you want to use the system you designed, there are roller screws (also miniaturized) tubular (the thread is inside the tube and the wheel screw inside). are in practice "extensors" like hydraulic cylinders, but unlike these they have an excellent control of motion and position. if I remember well they do also at bergamo. Of course it's a bit like shooting a fly with the cannon. another trivial solution could be the racket pinion with the cremagleira made of circle arch, with elicolidal teeth or with the teeth "to lobes".

there are many other solutions, some of which are very elegant. the choice must depend on many factors, such as the specification of pre-project. If the objective is to be stabilised also in motion, special types of angular actuators should be used.