constant variable interssertors

[AlbertoC]

egregi
I would like to find a simple way to move the dispensers to (in figure I represented only the axes).http://img12.imageshack.us/img12/2037/disps.jpgthey will have to approach and move away from each other, keeping the whole thing constant.
for the moment I think of a complicated system of rotations with different transmission relationships. I am certain that the market has the solution, can someone direct me in this sense?
or other ideas?
thanks for the kind collaboration.
tree

 

[stefanobruno]

they will have to approach and move away from each other, keeping the whole thing constant.

The theme seems a little generic.
What do you mean, that every nozzle has to move random always keeping the same distance from its neighbors?
as a traffic jam to the rally?:biggrin:

Bye.

 

[Mario SJPD]

more than generic unclear.
how do two objects move away and approach keep the distance constant?
I don't even understand the design....there is a rotation axis...bho ...to help you need further impt (always that it can do it)

 

[AlbertoC]

Porca paletta that lazy these designers:biggrin::biggrin:, joke of course.
In fact I could be clearer:tongue:.
therefore when I speak of constant distance is to the relative distance I refer:
- to position 1 corresponds a constant x exchange between the dispensers (the figures)
- to position 2 corresponds a constant question between the dispensers
-etc.
the rotation axis comes from the concept that I have in mind to set the system as a kinematic chain of rotatings that form horizontal translation.
Hi.

 

[Mario SJPD]

So if I understood the shift of the nozzles takes place along the axis of rotation. . .
the distance between them must remain constant....
what precision do you need to have the move must be controlled and in multiple variable positions? or just 2/3/4 fixed positions...the race has to allow you to cover an area in all positions you just need a last half an interasse to understand or you have to move from Milan to Venice... .imput needed imput

 

[AlbertoC]

therefore the break from the stop/start position should be +-2mm.
positions for the moment are discreet, I think 5.
the distance for each move is of the order of 150-200 mm
o.t. at an academic level it would be interesting to implement the solution for a number of positions, but this is only a vehicle of enthusiast of rational mechanics.

Hi.
tree

 

[AlbertoC]

egregi
I would like to find a simple way to move the dispensers to (in figure I represented only the axes).http://img12.imageshack.us/img12/2037/disps.jpgthey will have to approach and move away from each other, keeping the whole thing constant.
for the moment I think of a complicated system of rotations with different transmission relationships. I am certain that the market has the solution, can someone direct me in this sense?
or other ideas?
thanks for the kind collaboration.
tree

found the simple way, or better found scott and russel:biggrin:.
by the funaioli vol.2:http://img16.imageshack.us/img16/8358/meccanismoscottrussel.jpgI think I will work on this:finger:.
Hi.

 

[sampom]

found the simple way, or better found scott and russel:biggrin:.
by the funaioli vol.2:http://img16.imageshack.us/img16/8358/meccanismoscottrussel.jpgI think I will work on this:finger:.
Hi.

in fact,
I was just thinking about a "pantograph" joint of that guy.
if you want your n erogatori always die along the same axis of departure you do not have to mount them centrally (in the intersections of the various braces) as from figure, but in the top axis where you traced that axis drawn point. or if you want to keep them so you have to bind on "carrello" also the end at the top left and linearly guide the central joints that bring the dispensers. I don't know if I understood myself:

greetings
Mar

 

[AlbertoC]

in fact,
I was just thinking about a "pantograph" joint of that guy.
if you want your n erogatori always die along the same axis of departure you do not have to mount them centrally (in the intersections of the various braces) as from figure, but in the top axis where you traced that axis drawn point. or if you want to keep them so you have to bind on "carrello" also the end at the top left and linearly guide the central joints that bring the dispensers. I don't know if I understood myself:

greetings
Mar

The first observation you made is much more practicable: but you understood:

Hi.
tree