Messages

21

General Mach Discussion / Re: accel and velocity

« on: February 08, 2012, 08:38:34 AM »

The guy that sells the dugongs said they don't actually have adjustments. Just gonna start tuning servos again and cross my fingers.

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22

General Mach Discussion / Re: accel and velocity

« on: February 07, 2012, 01:47:45 PM »

Cool. I used to work with a diemaker who is now self employed in Michigan working on boats. Mostly sailboats.

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23

General Mach Discussion / Re: accel and velocity

« on: February 07, 2012, 12:51:45 AM »

Just curious. Are you guys self employed machinists?

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24

General Mach Discussion / Re: accel and velocity

« on: February 06, 2012, 05:20:53 PM »

I will check into the dugong gearing

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25

General Mach Discussion / Re: accel and velocity

« on: February 06, 2012, 04:37:29 PM »

I guess that my steps per unit being too low meant it was turning the axis' more times than needed thus creating the overtravels. Thanks a million.  I will plug those numbers in and check servo tuning.  Y and z are quiet but x is a little noisy so im sure it needs it.  Hopefully I can test run it again tonight after my regular job.

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26

General Mach Discussion / Re: accel and velocity

« on: February 06, 2012, 02:40:05 PM »

Thank you. Did the xml look fine?

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27

General Mach Discussion / Re: accel and velocity

« on: February 06, 2012, 01:48:39 PM »

i have posted this twice but havent seen it on here, gonna try again.  i have 500 line count encoders, which would be 2000 counts per rev in quadrature. the encoders are mounted to the motors. thread pitch is .200 on x and y, .18 on z.  there is a belt reduction of 2:1 on all axis' . im using dugong drives from cnc4pc. i have SEM motors ( 30M4-59 ) max rpm 2400, max volts 142, pulse amps 30. i checked and they have 110 volts being supplied to the dugongs. thanks again 

28

General Mach Discussion / Re: accel and velocity

« on: February 06, 2012, 11:13:59 AM »

i attached xml and replied, it said that name existed so i renamed and sent again. there seems to be a delay so im not sure if it posted. i will check back in a bit. thanks

29

General Mach Discussion / Re: accel and velocity

« on: February 06, 2012, 01:06:48 AM »

I have been playing with settings and its still overtravelling the same amount very consistently. My steps per unit for x and y is at 15000 and z is at 20000. With a dial indicator its correct if I run each axis individually. Just running a program (fanuc post) that runs multiaxis at a time that it acts up. I don't see anything in the code that looks out of place. Its in inch and absolute program.

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30

General Mach Discussion / Re: accel and velocity

« on: February 03, 2012, 04:33:05 PM »

That's what they are. Differential line drivers. Where else may a noise issue come from?  All of my step and direction signals are ran through the flex that the servos were wired through with its original setup.

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