Need advice on 3d positioning

  • Thread starter nclay
  • Start date
  • #1
3
0
I am trying to create a kind of rudimentary 3d positioning system, sort of like a CNC minus the machining aspect. I am just trying to get my very basic design down and im stuck at how i should get the position data, my first thought was to use an accelerometer placed at the tip of the actuator arm but im wondering if there is a better way to go... ive been doing lots of research on accelerometers and they seem to only work well with tilt. Any suggestions?
 

Answers and Replies

  • #2
berkeman
Mentor
61,368
11,890
I am trying to create a kind of rudimentary 3d positioning system, sort of like a CNC minus the machining aspect. I am just trying to get my very basic design down and im stuck at how i should get the position data, my first thought was to use an accelerometer placed at the tip of the actuator arm but im wondering if there is a better way to go... ive been doing lots of research on accelerometers and they seem to only work well with tilt. Any suggestions?

Welcome to the PF.

You can use rotary or linear encoders, depending on what you are using to create the movements. Limit switches can be used to zero out the counts, when you return the motion assembly to its home position.
 
  • #3
3
0
Thanks berkeman! That was exactly what i was looking for... these things arent cheap! Gonna blow my budget.

Thanks again!
-Nick
 
  • #4
berkeman
Mentor
61,368
11,890
Thanks berkeman! That was exactly what i was looking for... these things arent cheap! Gonna blow my budget.

Thanks again!
-Nick

How are you creating the motion? If you're using stepper motors, you can generally just count the steps...
 
  • #5
3
0
My original idea was to use a servo control arm and use an accelerometer to track the movement. I would really like to use the accelerometers i have so i'm thinking about going a different direction with the project... maybe a arm that you can control by attaching accelerometers to your shoulder and elbow. The steppers are a good idea though. I'm just trying to come up with a good project that would satisfy the requirements of my senior project, unfortunately im really not an idea man.
 

Related Threads on Need advice on 3d positioning

  • Last Post
Replies
4
Views
2K
Replies
1
Views
1K
Replies
8
Views
6K
Replies
11
Views
2K
  • Last Post
Replies
6
Views
2K
Replies
1
Views
2K
Replies
2
Views
2K
Replies
6
Views
7K
  • Last Post
Replies
1
Views
1K
Replies
4
Views
2K
Top