Search found 13 matches

by FahadRazaKhan
Thu Oct 28, 2021 6:42 am
Forum: Kits|Other
Topic: Igor Onboard Computer Power Supply
Replies: 3
Views: 825

Re: Igor Onboard Computer Power Supply

Hi,

Would you please confirm which Intel NUC board is being used on Igor, i.e. processor speed, memory, etc.?
by FahadRazaKhan
Tue Jul 07, 2020 12:47 am
Forum: Actuators
Topic: Abnormally High Effort Readings
Replies: 2
Views: 1091

Re: Abnormally High Effort Readings

Thanks Dave for the quick replacement.
by FahadRazaKhan
Sat Jul 04, 2020 1:34 am
Forum: Actuators
Topic: Abnormally High Effort Readings
Replies: 2
Views: 1091

Abnormally High Effort Readings

Hi, One of the actuators (X8-3) of my Igor is giving wrong effort readings. This actuator is attached to the left wheel of Igor and hence creating problems for its control. It is reading as high as -850 N.m which is insane. I wish I could attach my graphs here but I didn't find any file attachment o...
by FahadRazaKhan
Sat Jul 04, 2020 1:24 am
Forum: Actuators
Topic: Actuator changed its absolute zero angle
Replies: 7
Views: 1959

Re: Actuator changed its absolute zero angle

Thanks, it fixed the issue :)
by FahadRazaKhan
Fri Jul 03, 2020 5:09 am
Forum: Actuators
Topic: Actuator changed its absolute zero angle
Replies: 7
Views: 1959

Actuator changed its absolute zero angle

Hi, I have been using Igor, and without any apparent reason, its left hip actuator (X5-9) has changed the absolute zero position by about Pi/2. This is absurd for me, and because of this, even the demo example code cannot work. I have tried switching off and on, plugging out the battery etc but it d...
by FahadRazaKhan
Wed May 20, 2020 1:54 am
Forum: Actuators
Topic: Damping coefficient and static friction constant
Replies: 4
Views: 1257

Re: Damping coefficient and static friction constant

Thanks Dave, so can I assume that total inertia of the motor would be the sum of these two inertias?
by FahadRazaKhan
Tue May 19, 2020 11:45 pm
Forum: Actuators
Topic: Damping coefficient and static friction constant
Replies: 4
Views: 1257

Damping coefficient and static friction constant

Hi, I guess my reply to my previous post went unnoticed so I am asking it here in a new post. What is the difference between motor inertia and gear inertia @ motor? Which one needs to be used when you are just concerned about controlling the output torque? Also, I could not find the damping/viscous ...
by FahadRazaKhan
Sat May 16, 2020 3:57 am
Forum: Actuators
Topic: Actuator Gain Parameters
Replies: 3
Views: 1393

Re: Actuator Gain Parameters

Thanks Dave , I really appreciate your support. Another thing I want to be clear about is what is the difference between motor inertia and gear inertia @ motor? Which one needs to be used when you are just concerned about output torque? Also, I could not find the damping/viscous coefficients and sta...
by FahadRazaKhan
Fri May 15, 2020 2:19 am
Forum: Actuators
Topic: Actuator Gain Parameters
Replies: 3
Views: 1393

Actuator Gain Parameters

Hi,

I am working with Igor and trying to adjust the actuator gains to get better performance. However, I could not find the description of XML gain parameters such as target_lowpass, output_lowpass, min_output, max_output, min_target, max_target, and punch.