Search found 316 matches

by turbothis
Wed May 01, 2024 2:51 pm
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 126

Re: spindle servo tuning for heavy chuck and overall mass

thanks for the info
ill study this for a couple days while i am camping this weekend
Monday i will try some stuff and get back to here :D
by turbothis
Tue Apr 30, 2024 11:13 pm
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 126

Re: spindle servo tuning for heavy chuck and overall mass

on the console screen it will spin up real fast and DAC0 instantly

i wish i could get a long log of the command, position and output like in megasquirt ECU.
to see where it fails and then see what needs to be adjusted
by turbothis
Tue Apr 30, 2024 5:05 pm
Forum: Tuning Servos
Topic: lag in the DAC spindle output
Replies: 0
Views: 18

lag in the DAC spindle output

so if i start the spindle at half speed 700 rpm it will ramp right up. no trouble now when i move the slider bar down in rpm, it is real slow even though the DAC is maxed in the opposite direction to slow the spindle :? then if i hit "OFF" it takes about 2 second stop stop outputting the DAC why is ...
by turbothis
Tue Apr 30, 2024 12:03 am
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 126

Re: spindle servo tuning for heavy chuck and overall mass

ok, so i manually tuned it and it is real nice performing on ramping up and down drastically with the MDI and feed override slider however when the program is run it is very different is there spindle performance parameters for running the C code that are different than just MDI and slider bar? #inc...
by turbothis
Mon Apr 29, 2024 11:14 pm
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 126

Re: spindle servo tuning for heavy chuck and overall mass

first step response with "move"

edit. says file is too big to upload?
how do i upload the step response data?
by turbothis
Mon Apr 29, 2024 10:58 pm
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 126

Re: spindle servo tuning for heavy chuck and overall mass

jeez it gave me grief to just move the spindle again.... anyways, it is a DC servo with a +/- 10V drive so torque right? should i try and use "move" or "step"? i dont think i have anything on the IIR settings #include "KMotionDef.h" void main() { // spindle ch2->InputMode=ENCODER_MODE; ch2->OutputMo...
by turbothis
Sat Apr 27, 2024 2:21 am
Forum: Tuning Servos
Topic: spindle servo tuning for heavy chuck and overall mass
Replies: 8
Views: 126

spindle servo tuning for heavy chuck and overall mass

is there some reading i can get a link to? i try the step response and the spindle over shoots bad and i cant get any of the settings to calm it down i tried a bunch of PID and low amounts high jerk and accel and low amounts making some cuts, the chuck will fall behind and then it burst too far forw...
by turbothis
Mon Mar 25, 2024 4:28 pm
Forum: KMotionCNC, G Code Files, Offsets, Post Process
Topic: need post processor help for dophin cam to kmotion cnc lathe
Replies: 2
Views: 146

Re: need post processor help for dophin cam to kmotion cnc lathe

ok, the guy at dolphin helped me and chatbot out and made a nice little post processor i will use it over time and see if it needs more work or is just fine TITLE: :T1 = { CNC Lathe Kmotion CNC Radius Mode Post } END: VERSION: FILEVERSION 15.0 TURNING END: WORDS: :TMP = {DDDDDD.dd} :BLOCK = {"N"DDDD...
by turbothis
Thu Mar 21, 2024 12:03 am
Forum: Custom Screens, KMotionCNC Screen Editor
Topic: no toolpath and tool shape is backwards
Replies: 13
Views: 170

Re: no toolpath and tool shape is backwards

holy cow!
dare i say everything works and its the first day of spring break over here
i cant thank tom enough and hope i can pay him back some how in life

cheers :D
by turbothis
Wed Mar 20, 2024 10:05 pm
Forum: Custom Screens, KMotionCNC Screen Editor
Topic: no toolpath and tool shape is backwards
Replies: 13
Views: 170

Re: no toolpath and tool shape is backwards

oh yup
i remember failing on that one too