Seperate X,Y,Z,A operation accelerations? - DDCSV2.1 - Standalone CNC Motion Controller - Digital Dream Technology support
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Seperate X,Y,Z,A operation accelerations?

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Posted at 2018-10-3 07:58:07 | All floors
I understand your request, I will try to change the software, but I am not very sure to solve your problem.

Can you upload your settings and gcode files to the forum?This will make it easier for me to test。
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Posted at 2018-10-3 07:58:21 | All floors
I understand your request, I will try to change the software, but I am not very sure to solve your problem.

Can you upload your settings and gcode files to the forum?This will make it easier for me to test。
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Posted at 2018-10-4 16:39:53 | All floors
math_indy Posted at 2018-10-3 22:33
On this surface grinder installation the DDCSV2.1 works great in CONT and MPG but inability to have  ...

I optimized the program according to the parameters you provided.
Note: Set parameter #99 with the minimum acceleration in the XYZ axis.

install(2018-10-04-XXX).zip

591.21 KB, Down times: 851

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Posted at 2018-10-6 06:29:37 | All floors
math_indy Posted at 2018-10-5 22:59
OH WOW--MUCH BETTER!

I installed custom version 2018-10-04-XXX and now I have the accelerations tha ...

Don't worry, if there is no problem with this change, I will add it to the subsequent official version.
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Posted at 2018-10-6 10:44:43 | All floors
Great video, thank you for sharing.

I upgraded the software because of a problem with the previous version of G2/G3 acceleration processing.

In the new version, #99 represents the combined linear acceleration. During the machining process, the actual acceleration value will be constrained by the manual start acceleration of each axis.
In addition, parameter #498 "J-parameter gradient" is added, which is used to describe the rate of change of acceleration. Since the rate of change of acceleration (J) must be less than 1/2 of the minimum acceleration value among the three axes,  so 498>#99/(min(#45,#46,#47)/2).

For your application (#45=150 #46=7.5 #47=2), you can set it as follows:
#99=300;
#498=500;

Also, I noticed that your X-axis and Y-axis pulse equivalents are not the same, so set #113 to 1 (Soft algorithm).

install(2018-10-06-XXX).zip

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Posted at 2018-10-9 17:55:57 | All floors
math_indy Posted at 2018-10-9 02:53
I installed 2018-10-06-XXX and changed parameters #99 and #498 as suggested (to 300&500).  All axes  ...

Please download the latest firmware and configure the following parameters:
#99=300
#2031=1

Parameter #498 has been removed from the parameter list
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