Feed Rate massively reduced without G-code request

Feed Rate massively reduced without G-code request

Postby hoizlaender » 08 Jan 2015, 23:00

Servus folks,

i am using an MK2 at my mill.
During executing a big programm i figured out that the feed rate is reduced without reason.
This happens at new g-code lines without F-Command.
Feed rate is set at e.g. F300 and the SPD Indication shows only 85 or worst case i saw 12.80.

This leads to a time difference between CAM calculation and real milling of 3hours for my programm :shock:

Does anybody know that problem or better a fix for that?

Best regards,
Marc
hoizlaender
 
Posts: 5
Joined: 04 Dec 2012, 10:46
Controller: Mk2

Re: Feed Rate massively reduced without G-code request

Postby Support » 09 Jan 2015, 08:49

Does reduction of speed always appears at the same section of program?
Or is it at random. Can you send us your g-code program and settings file?

Describe if possible at which line of code problem occurs.
You can also make video.
Support
 
Posts: 2631
Joined: 07 Apr 2014, 17:39
Controller: Many controllers

Re: Feed Rate massively reduced without G-code request

Postby hoizlaender » 09 Jan 2015, 22:41

Hello,

you finde attached the settings file
Settings hoizlaender Jan15.setting
(39.3 KiB) Downloaded 71 times

and an test g-code.
Test for Planet-cnc.txt
(24.11 KiB) Downloaded 62 times

It is just a smal part of the executed file yesterday.

The problems occures each time at the same lines.

Line SPD
1420 85
2200 115
4120
4820 71
7510
8800 71

So it is a problem of the G-code and not cncUSB.
The CAM (madCAM) sets G0 commands.
But what is the reason for the different Speeds and why is the speed so low?
G0 should be max speed or?

Best regards,
Marc
hoizlaender
 
Posts: 5
Joined: 04 Dec 2012, 10:46
Controller: Mk2

Re: Feed Rate massively reduced without G-code request

Postby Support » 12 Jan 2015, 14:23

In settings please set:
Settings/Speed/speed Calculation -> enable "Linear Axes With Rotation".
Support
 
Posts: 2631
Joined: 07 Apr 2014, 17:39
Controller: Many controllers

Re: Feed Rate massively reduced without G-code request

Postby marlom » 19 Mar 2016, 10:08

Please hoizlaender can you tell me which post processor you're using with MK2 controller?
Thanks in advance.
Mario
marlom
 
Posts: 1
Joined: 10 Jan 2016, 15:22
Controller: Mk2/4


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