assiemi weight

[spiderman]

Bye to all,
ptc assistance couldn't help me, he told me that it's not possible to do what I'm asking, I'd like your opinion.

inside my assemblies I mounted parts modeled by me and imported parts (e.g. engines), the weight of the molded parts is calculated by pro_e while the weight of the parts I imported is imposed in a "weight" parameter.
in the molded parts I added the weight report=pro_mp_mass
In practice in a set I have parts with the weight parameter driven by relationships and parts with the weight parameter imposed by the user.

The problem is as follows:

exists a relationship that calculates the weight parameter of the axieme equal to the sum of all weight parameters of the components without listing them one by one? It seems strange that pro_e cannot do this

hello and thanks in advance

 

[wired]

Bye to all,
ptc assistance couldn't help me, she told me it wasn't........... .

Hi.
writing in capital is equivalent to shouting :wink:

to do what you describe you do not have to sum the various weight parameters, but you have to make sure for the imported parts, the calculation of pro_mp_mass, correspond to the weight set by you.

example:
suppose you have imported a gear motor, in the specific laws that must weigh 10kg, in this case you do not have to calculate the weight you already know and imposed, but you have to calculate the specific weight according to the volume of the object:
- you have a weight parameter expressed in kg equal to 10
- creates a mp_density=peso/pro_mp_volume relationship

change the mass source parameter (pro_mp_source) as in figure, so you won't have any delays in computing, so...

now, in the assembly, the weight parameter will be the sum of all individual weights

 

[spiderman]

thanks wired,
Have you been very clear, I have a single doubt, in the case of parts formed only by surfaces this technique works cmq? I ask you because often some engines are not simple to solidify.

 

[wired]

thanks wired,
Have you been very clear, I have a single doubt, in the case of parts formed only by surfaces this technique works cmq? I ask you because often some engines are not simple to solidify.

Hi.
no, only with surfaces does not work but just draw a small hidden cube inside the part and everything is resolved

 

[spiderman]

cunning!!!! so I can place it on the center of gravity...

Thank you 1000!! !

 

[AMinati]

you can also create a "blk" element that you could call weight and insert in it the relationship that sums all the weight parameters contained in the axieme components.
I used this technique a long time ago when I needed to count all the bolts and washers I needed inside a set.

aminati

 

[Robocar78]

you can also create a "blk" element that you could call weight and insert in it the relationship that sums all the weight parameters contained in the axieme components.
I used this technique a long time ago when I needed to count all the bolts and washers I needed inside a set.

aminati

Bye to all,
I am very interested in a few things about it:

1) I also use the parts created fundamentally by packaging as accessories provided by third parties and to them check pro_mp_alt_mass with pro_mp_source=parameter , then I have a relationship mass=pro_mp_mass that "collects" the mass (both with pro_mp_source settato a geometry that a parameter). but the baricentro never understood how it behaves...if I insert a part so created in an assy the center of the assy is correct or the weight of that part "without volume" is not considered in the calculation of the total center?

2) I have the need to add weights to both the main mass parameter as I said but also to obtain a value for a partial mass : e.g. oil mass contained in various "mowers". the weight of the oil is good to me that you look at the total to have the total, but I would also like to have the possibility to have an oil_mass parameter in the axieme that resembles the oil_mass parameter of the children, if present, automatically. For example, the parameter could only be in one or more children who can change from time to time. I don't know if I explain. is it possible according to you without writing every time a special rel?

Hello, thank you!