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Multi portal crane problem

Builder
Builder

I am trying to model a 2 axes portal with a multi portal crane. The crane has only 1 portal. It picks up the part from M1, place it on M2 for processing and when processing is done at M2, it moves the part from M2 to M3. also pic attached

 now M2 is empty so it goes back to M1, picks up a new part and again place it on M2. this continues in a cycle.

The problem is I can model the movement from M1 to M2 and M1 to M3, but not what i exactly need.

can anyone help me with the logic here.

Thanks in advance

7 REPLIES

Re: Multi portal crane problem

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor
Have a look at this example:

https://www.bangsow.eu/detail_en.php?id=483

You need to "call" the crane in the exit control of the SingleProc.
Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net

Re: Multi portal crane problem

Builder
Builder

Hallo steffen_B,

Thanks for the naswer. I have already tried the method but i am not able to get the logic right. Do i also need to change something in the variable The portal does not behave as i want. Can you help me a bit with the logic here ?

Re: Multi portal crane problem

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor
Yes of course.
I prefer for two axis portals a simple combination of two transporters (transporter is driving on an other transporter with loadbay type track). So I have a maximum of control over the behavior. Do you need to model the vertical movements of the portal?
Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net

Re: Multi portal crane problem

Builder
Builder

I need to model the vertical movement also with different speed and acceleration, which i am finding very difficult to do with the crane library, since there is no option for changing the acceleration and capacity of the greifer. Could you please give me an example where i can model the 2 axes portal with different speed,acceleration and capacity of the greifer.

Thanks in advance!!

Re: Multi portal crane problem

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor
until now I don't have an example; but search in the help targetPosition, this is all you need to create your own gantry
Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net

Re: Multi portal crane problem

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor
in this example you can see the basic approach:

https://www.bangsow.eu/detail_en.php?id=727
Steffen Bangsow
freelance simulation specialist  
web: www.bangsow.eu
mail: steffen@bangsow.net

Re: Multi portal crane problem

Builder
Builder

Thanks!! I am trying to use this approach.