Progettazione parametrica PANCHINA

I have create with Revit the bench designed in the picture above. First of all i studied the pieces that compose it, two hiron structure that are the base of the bench, the overstructure in wood and the bolts that hold the all. I created one family for each piece [ FILE-NEW-FAMILY-METRIC GENERIC MODEL FACE BASE ]. I decide the face view according to the function tha the object will have.

First of all I put the correct project units [ MANAGE-PROJECT UNITS ] and according to the dimention of the piece i put the project units. For example for the bolts I used millimeters meanwhile for the  wood sticks I used meters.

Than I draw the REFERENCE PLANE to define the borders of my object. I used the coomand ALIGNED DIMENSION To mesure and set the lenght between the planes.

After I set the referenc plane I added the parameter using the command FAMILY TAPES. I created a list of parameters than I assigned each parameter a dimension. 

I essagned the parameter cliking on the dimension and choose the correct one.

After delimitated all the dimension and  the thicknesses of the piece I extruded the surface [ CREATE-EXTRUSION ]. I changed view and i used the front view to adjusted the lenght of the ectrusion creating another reference planeI. 

I did the same passages for the other parts (wood sticks and bolts)

 But I used a different command to create the bolts holes. I used the command VOID EXTRUSION drawing a circle on the hiron structure.

Finished each family( for each part) I created the mother family in order to combine all the components. I used the command [ INSERT- LOAD FAMILY (I searched the family that i want to import ). Than CREATE-PLACE COMPONENT (and i select the reference surface). To place the component in the correct position i uesd the command MOVE.