I understand your point.
but this is not the problem I have. I have a problem at the end because 
with the conception of my glue valve, I have a quick increase of the 
flow when closing it.

In fact, the part of the valve thay closes it is acting like a piston 
that pushes out the glue.

Beside this closing problem, I have the exact inverse when opening : the 
glue flow start with a delay due to the volume "sucked" by the 
retractation of the valve.

I'm thinking of inverting the way my valve works, because if there is 
some suction at the end of flow, will be really better to produce a 
clean work.
But I need to redraw and remachine the whole thing...
Lack of thinking on the first time, so maybe I deserve this :/



Ian W. Wright wrote:
> Hi Yann,
>
> Perhaps you could stop the motion just before you reach the 
> 0,0 position, then you wouldn't get an overlap of adhesive.
>
> Ian
>
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>   


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