help for tripod rig in maya

[getunni08]

hi friends,
i'm bit confused with a tripod rig... it has more than 10 attributes i want to set..each time i GRP and add set driven..but after setting 4 attributes i lost the setdriven for the 1st one..

FOR EG: i want to move the handle up and down left and right..i set the driven for it and after i set driven for changing the height... I got the height change attribut correctly but i lost the handle up and down & left and right..some object not move with the handle... how many time i can GRP a object...

i hope u all can understand wht i said..if any doubt plz take a look on any tripod..

thnx in advance...

[getunni08]

tripod normal mode


leg expanded


head height change


handle rotate up


handle rotate both side


this is the zoom view of handle

[getunni08]

i want set attribute for these moments...i try to group it and set..but after each group i lost the previous setdriven... how cani do this...please help me..
thanks in advance....

[crackerjack]

First you need to understand the hierarchy of the transformations you need.Based on that you need to create the groups.
For example if you still need the rotate left and right to function even after you change the height, it certainly means the groups which control your rotX and rotY should come under the group which u are manipulating to adjust the height.
In short you need to have multiple groups to deal with these kinda objects.


some thing like this:

+CENTER COLUMN|
....................... |->TRIPOD HEAD GROUP|
........................|......................... .....|->TRIPOD HEAD SWIVEL GROUP
........................|......................... .....|->TRIPOD HEAD ROTATE GROUP
....................... |->LEG SECTIONS GROUP|
.................................................. .......|->LEG-A GROUP
.................................................. .......|->LEG-B GROUP
.................................................. .......|->LEG-C GROUP