Groove on REX foot_1.jpg |
This picture shows the groove plate placed on the base of the robot. This measurement is the baseline for the other axes. |
WW on REX foot_1.jpg |
This picture shows the unit in place on the base groove plate. |
Groove on REX axis1_1.jpg |
Two groove plates for dynamic measurement of axis 1. |
WW on REX axis1_1.jpg |
Unit in place on the axis 1 groove plates. |
WW on REX axis1_2.jpg |
Close up of unit in place on the axis 1 groove plates. |
Groove on REX axis1_2.jpg |
Groove plate on lower arm of robot for measuring axis 2. |
WW on REX axis2_2.jpg |
Back of unit on axis 2 groove plate. |
WW on REX axis2_1.jpg |
Front of unit on axis 2 groove plate. |
Groove on REX wrist_1.jpg |
Groove plate on robot wrist for measuring axis 3 and 4. |
WW on REX axis34_1.jpg |
Unit on axis 3/4 groove plate. |
ABB_three_pin_on_flange_01.jpg |
ABB grooved three pin plate in flange. Used for measuring axes 5 and 6 without requiring modifications to the flange design. |
ABB_three_pin_on_flange_02.jpg |
ABB grooved three pin plate in flange. |
ABB_three_pin_on_flange_03.jpg |
ABB grooved three pin plate in flange. |
WW_on_3PKC_plate_01.jpg |
Unit on three pin plate in flange. |
WW_on_3PKC_plate_02.jpg |
Unit on three pin plate in flange. |
WW_on_3PKC_plate_03.jpg |
Unit on three pin plate in flange. |
WW_on_3PKC_plate_04.jpg |
Unit on three pin plate in flange. |
Groove on REX flange_1.jpg |
Grooved insert plate set in flange. This insert plate would be incorporated into the flange design so a separate plate would not be required. This is the suggested design instead of the three pin design. |
Groove on REX flange_2.jpg |
Grooved insert plate set in flange. |
WW on REX flange_1.jpg |
Unit on insert plate in flange to measure axes 5 and 6. |
WW on REX flange_2.jpg |
Unit on insert plate in flange. |
MIT_three_pin_plate_01.jpg |
MIT prototype of three pin interface plate engaged on flange. This plate does not have grooves. |
MIT_three_pin_plate_02.jpg |
MIT prototype of three pin interface plate engaged on flange. |
Two separate sets of measurements have been made on the Wonder Wyler unit. The first set were collected for Alec Robertson's presentation of the device to BMW in Germany. This data consists of repeated angular measurements of the first unit at each location on the robot. These measurements show the repeatability of the procedure.
Initial Accuracy Tests 2001-01-30.xls
The second set of measurements were collected by Pat Willoughby and Alec Robertson during the February 2001 trip to Sweden. This data consists of measurements using the Leica laser tracking system. Measurement points consist of the center points of each tooling ball and the coupling triangle for the balls not engaged with grooves.
WonderWyler Repeatability Analysis.xls