Question regarding accelerometer

bzad

Hi I recently installed my accelerometer but I’m a tiny bit confused as to the orientation code

M955 P0 I60 C”io8.out+io8.in”

Is the code I used my machine is a core xy and I used the lis3dsh mounted on tool head

tool head

alankilian

From THE M955 page:

The I (orientation) parameter tells the firmware which of the 24 possible orientations the accelerometer chip is in relative to the printer axes.

It is expressed as a 2-digit number.

The first digit specifies which machine direction the Z axis of the accelerometer chip 
(usually the top face of the chip) faces, as follows: 0 = +X, 1 = +Y, 2 = +Z, 4 = -X, 5 = -Y, 6 = -Z

The second digit expresses which direction the X axis of the accelerometer chip faces, using the same code.

The chip looks like this:

So:

Which axis does the top of the chip face?
Which axis does the "X" axis face? (Look for the white dot on the package to figure out which way "X" is on the package. I can't tell from your photo.)

bzad

@alankilian x is to x, z is to the front of printer so 20?

alankilian

@bzad said in Question regarding accelerometer:

@alankilian x is to x, z is to the front of printer so 20?

Is the front of the printer the +Z axis? (This would be unusual.)

Can you show a photo of the whole printer with the head as well as a closeup pf the accelerometer board?
Or a link to the accelerometer board so I can see which way "X" points on the board?

alankilian

I'm going to GUESS you took that photo standing in front of your printer, so I think the accelerometer +X axis is pointing in the +X printer axis direction and the accelerometer Z axis is pointing in the -Y printer axis direction.

So

I50

GUESSING.

bzad

@alankilian
The board
https://a.aliexpress.com/_mOkoSpq

And yup standing in front and x is +x and z is pointing to -y is what I meant to say

Thanks