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Motors resonating

Posté : mar. janv. 20, 2009 1:51 pm
par Daniel
Hi
I have ben testing Jedicut for some days.
But I can not get the motors to run smooth.
I have ben testing manny different values/speeds and dll.
The travel is correct and speed seams ok.
The cnc card works fine with mach3.
Can it be the pin 17 engine on/off
In the manual for the board Pin 17 is marked as relay control.

Best Regards
Daniel

Error

Posté : mer. janv. 21, 2009 12:35 am
par Snookie
Hi there,

i am using the last beat version when i encountered this problem, but i got it also when i tried the last stable version.

When i use 2 dat files with the same amount of key-points, i gat an error when i try to preview the cut file, or when i try to cut the file.

Anyone has a clue, im am too new at this to say hat it's a bug so i'mm probably doing something wrong

Grtz,

ROb

Re: Motors resonating

Posté : mer. janv. 21, 2009 9:20 am
par COllen
Hi Daniel

I think I might have the same problem. See my post "Steppers are skipping steps" also posted today :)

Cutting distance and speed is OK but motors randomly skips/resonate within the same cut.

Please let me know if you find a solution.

Thanks
Collen

Re: Motors resonating

Posté : mer. janv. 21, 2009 7:42 pm
par Jerome
Daniel,

What board do you have ? Do you have any other program running on your computer ?

If you configure to high speed, your motors will lose steps. And if you don't heat enough when cutting, your motors will lose steps too...

Re: Motors resonating

Posté : jeu. janv. 22, 2009 10:53 pm
par Daniel
I still can not get the motors to run smooth
I have been testing with mach 3
And everything works good (from 1 -2 mm/sec feed)
I can not find any proseses who wold interfer.
I have onely run jedicut with no load (no material )

Nb mm/pas = 0.005 (I have 1 mm pitch on leadscrews) 1,8deg 200 stepp motors
Cut speed =600 (with estimate 0.03 mm/sec)
fast =900 (with estimate 0.02 mm/sec) If I try 1400 (estimat = 0,01) and any number over that makes no diference.
Visualcnc xp.dll is jused.

One more thing.
My driver board runs mutch warmer ??
Driverboard

Re: Motors resonating

Posté : jeu. janv. 22, 2009 11:19 pm
par Daniel
Youtube motor running
Take a look

Re: Motors resonating

Posté : ven. janv. 23, 2009 7:38 pm
par Jerome
Daniel,

Do you check the option "synchronize with external timer" in Jedicut ?

I took a look at your video and I think your speed is too high.

Re: Motors resonating

Posté : dim. janv. 25, 2009 11:32 am
par Daniel
Hi again

I have uploaded 5 videos
The one linked to in my last reply was det middel speed 500.(I have marked the videos with Nb mm/pas and speed)
If I make the engines go slower than move 1 http://www.youtube.com/watch?v=RHZ6At1F ... re=channel
They do run very hard .(video 4 http://www.youtube.com/watch?v=eqb0_AgwxNc )
And her are my settings video 5 http://www.youtube.com/watch?v=Vi3RkaDCnEM

Re: Motors resonating

Posté : dim. janv. 25, 2009 4:11 pm
par Daniel
Hi again
I have uploaded some new videos http://www.youtube.com/profile?user=SomeCnc&view=videos
With different speeds.
Video 1 have 300in speed and the video in my last reply had speed 500 (video nr 2)
Video nr4 is a simulation run of an airfoil (Where it is almost posible to count the steps) and it viberates loudly.
Video nr5 is of my settings in jedicut.

Re: Motors resonating

Posté : lun. janv. 26, 2009 9:24 pm
par Jerome
Hi,

What kind of board is this ? A visual CNC one ? Are you sure of your pin configuration ?

Last question : do you have any documentation for the signal Jedicut have to send to your board ?