Z axis cutting depth issue

Easel
1

my name is jun from south korea. when I tried just Easel, I have a problem with z depth is something wrong. I tried to make 10mm depth hole. X carve made 20mm hole. do you know why this thing is happen? I check that jog the machine an inch in the z-axis direction and see if that moves an inch in reality. it works well.

please help
jun

2

By the way, I use mm not inch

3

How did you set your Z zero?
What are you cutting? What are your cut settings?

1 Like
5

setting_01
setting_011192Ă—1198 287 KB

and please see my machine inspector

6

setting_02
setting_021366Ă—768 145 KB

7

I did z zero

8

I tried cutting woods and plastics

9

If the machine goes deeper that intended you either have an incorrect workflow or mechanical issues.

1 - If during Machine Setup you chose Z-plate, this introduce an Z-offset and if you zero on top surface of material total plunge = design depth + offset

2 - Mechanical, loose pulley, steps lost during retraction etc. Do the bit return to the exact starting point again after the carve?

1 Like
10

thanks for kind explaination. when I jog z axis, I tried to move 1mm but it was not. it was moved more than 1mm. do you know why?

11

Jog a 20mm command up and down several times - what is the actual distance measured?

You can affect travel by choosing a level of microstepping and defining a step per mm value (GRBL parameter $102 for Z axis)

What is your current $102 value and what is your Z microstepping set to?

1 Like
12

I jog 10mm but i moved 20mm so how can I fix this? can you tell me where is a level of micro stepping set is ?

13

May I suggest you search the forum a little also? Research and then ask if required :slight_smile:

“Microstepping” :

“Edit $102” :

1 Like
14

yes, you need to adjust $102. Basically, you need to use a ratio of the input movement and the actual movement. So if it moves 20mm actual on a 10mm input, you need to use a .5 ratio, which would decrease the actual movement to the input movement of 10mm. Hopefully that isn’t too confusing, but that is a very basic boiled down version of what you need to do.

Basically, you need to calibrate your machine.

1 Like
15

Yup.
Changing the micro stepping value one can also tweak the steps/mm in halves and doubles.
What is your current $102 value?