Messages

31

General Mach Discussion / Re: accel and velocity

« on: February 02, 2012, 09:03:28 PM »

Im going to measure my wires and order Ferrites tomorrow.  My system uses differentials ( I think its what they are called) to run the 4 wires from the encoder to an rj45 plug. Then cat 5 wires to the drives. Do they sell shielded wire for cat 5?

Sent from my DROIDX using Tapatalk

32

General Mach Discussion / Re: accel and velocity

« on: February 01, 2012, 07:16:10 PM »

Thanks for the input guys. I will just start playing with settings and making adjustments. Someone had mentioned to me ( in person ) that I need to be careful of "noise" in the lines and possibly getting some type of magnet to put at the pc connection and the servo connections. But he doesn't know what the magnets are called so I have yet been able to find them.  I am going to find them and put them on. What other precautions can I take to reduce my risk of noise causing problems?

Sent from my DROIDX using Tapatalk

33

General Mach Discussion / Re: accel and velocity

« on: January 30, 2012, 07:10:24 PM »

Would I be able to list all of my data and you be able to get me in the ball park?

Sent from my DROIDX using Tapatalk

34

General Mach Discussion / Re: accel and velocity

« on: January 30, 2012, 04:19:37 PM »

I found someone that retrofitted the same mill I have to mach. So the hardware on the machine is identical. Only difference is the drives, Bob,  and encoder count. Since the same servos, belt reductions, lead screws and all of that is the same, will my steps per unit, acceleration, and velocity be the same?

Sent from my DROIDX using Tapatalk

35

General Mach Discussion / Re: accel and velocity

« on: January 27, 2012, 09:14:17 AM »

Is there a certain factor that would make the laptop not work? Or is it just a gamble? Thanks

36

General Mach Discussion / Re: accel and velocity

« on: January 27, 2012, 01:29:30 AM »

I am going to get a voltage and ohms reading on my power supply tomorrow.  I have been debating on getting a laptop to run my machine on. If it meets system requirements will I be able to use it?

37

General Mach Discussion / accel and velocity

« on: January 26, 2012, 01:28:16 AM »

is there a formula to know what the accelleration and velocity need to be set at? when i set it to 20ipm feedrate, not sure if its right or not. and its not cutting correctly in arcs, circles, or engraving. seems to be gaining steps. also i have servos but not sure why encoders arent recognizing that it is out of position. im hoping it can be fixed by getting accel and vel correct. Thanks