Robot rigging question.

# 1 21-01-2011 , 08:07 AM

Registered User
Join Date: Jan 2011

Posts: 1

Hello,

I am in the process of learning how to rig. I have modelled a robot and I'm trying to rig the legs to move a certain way, but without any luck.

Please see the attached images.

https://simplymaya.com/forum/attachme...1&d=1295597113
https://simplymaya.com/forum/attachme...1&d=1295597113

Basically, I want point 'A' to work as a knee pivot, causing point 'B' and 'C' to close and come together when the leg bends (and vice versa when it moves outward). I want point 'D' to be a fixed position, with the leg moving forward, back, right and left from that point.

Whenever I have tried to rig the leg, point 'B' and 'C' have either stayed the same distance or just moved outward, and not inward.

Any suggestions would be greatly appreciated.

Thank you,

Matt.

Attached Thumbnails

Click image for larger version

Name: robot_leg_01.jpg
Views: 726
Size: 178.1 KB
ID: 45759

Click image for larger version

Name: robot_leg_02.jpg
Views: 716
Size: 224.1 KB
ID: 45760

Last edited by David; 21-01-2011 at 02:23 PM. Reason: Image Attachments

Quote

# 2 04-02-2011 , 07:48 AM

Registered User
Join Date: Jan 2005

Location: vienna

Posts: 1,095

a pic of the problem areas when the legs are in motion would be helpfull, but basically I think it is just a matter of paintweighting skins. also since it is a robot and theres no need for smoothBinding like for deforming skin I would bind everything in a rigid way or just group the necessary parts into the bones hierarchy if you haven´t allready done so.

everything starts and ends in the right place at the right time.

Quote

# 3 05-02-2011 , 03:14 AM

Subscriber
Join Date: Jun 2005

Location: Atlanta, GA

Posts: 258

I am noticing your robot is one of the old style toy robots.. but the toy robots legs dont bend at the knees.. only at the hips and from there pretty much rotate on a arc.

Anyways.. to try and help you.. it looks like you need to modify it up some perhaps.

This assuming I understand what you're asking. Wanting it to bend like a leg with a knee joint with out wierd deformation and keeping the "D" cyilnder still.

Attached Thumbnails

Click image for larger version

Name: mytwocents.jpg
Views: 551
Size: 235.3 KB
ID: 45889

Quote

Robot rigging question.

Posting Rules Forum Rules

Similar Threads

Topics

Free Courses

Full Courses

VFX News