Different speed with the same code

stivemaster · Posted at 2019-3-23 03:48:40

First I want to thank for the help. I changed the software version from 89 to 106. At the new version there is a difference in the logic of PWM and M3 and a bit difficult to understand the logic, but I get it right. Probe is already working and this video shows the result of it . There is, however, a strange problem. The controller changes the speed of two separate files in which a part of the code is the same. This is the code with which I cut, I just copied the same code and the speed is visibly different.
What can be attributed to this?

ytliu · Posted at 2019-3-23 06:30:48

Congratulations on solving the probe problem.
Can you describe this speed difference problem in more detail? It is best to provide the relevant g code and configuration.

stivemaster · Posted at 2019-3-23 15:43:27

Well the problem is visible in the video that I have given. First, the machine cuts the profile and this is a separate file because it may have to be done at the beginning of each profile. Then I run a second file that makes two opposite holes and the same cut off. For the second cut, I just copied the code from the first file. The speed is visibly different.

ytliu · Posted at 2019-3-23 20:49:26

I can't make accurate judgments about the information you provide. You can check the following items:
1. The speed of G0 is determined by the #80 parameter, not the F programming word;
2. The #125 parameter can affect the speed of G2/G3, such as F=1000mm/min, #125=0.5, then the speed of G2/G3 is F*#125=500mm/min;

stivemaster · Posted at 2019-3-23 23:16:47

The Y,Z and A movement of the cut is only with G1.

stivemaster · Posted at 2019-3-25 23:26:05

Last edited by stivemaster In 2019-3-26 00:02 Editor

This forum obviously does not answer all questions.However, I will try again and upload the problem files.
When running file 21, the speed of movement on Y, Z and A is greater than when the file 22 is released. I wonder why this happens?
Additionally, the problem is not only with the speed set by the F and G00 speed and it performs many times at high speed.

ytliu · Posted at 2019-3-26 06:52:58

How is your #6 parameter set? If the #6 parameter is not equal to 3, the system will automatically optimize the speed, you can configure it to 3, turn off the speed optimization function.

stivemaster · Posted at 2019-3-27 00:15:25

Last edited by stivemaster In 2019-3-27 00:34 Editor

What does this parameter mean and where does the manually talk about it?
And I could not understand why G02 and G03 are running at half speed ?

ytliu · Posted at 2019-3-27 09:46:21

http://bbs.ddcnc.com/forum.php?m ... &extra=page%3D4

stivemaster · Posted at 2019-3-27 17:09:46

Do you mean that axis that is rotating should I set it as linear?

Different speed with the same code

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