Messages

21

CS-Lab / Jerky movement between strait movements and curves.

« on: June 09, 2016, 07:13:53 PM »

Hey there guys,

    I've got a matsuura mc500v thats running under mach3 control with a csmio/ip-a controller and I can't seem to get the machine to smoothly transition between straight lines and curves. It's really always had this problem but I am needing to run it faster than I have been and the jerk is so bad that I'm tripping a following error (have my max following error set to 10000).

I'm using mastercam to generate the G-code. Here is a sample below. I can run the code, but only at a rate of 75 ipm. Mach will run smoothly until it gets to the G02 and g03 and suddenly there's a jerk than I can hear clear across the shop. It I try at 150ipm the machine will oscillate like crazy, throw a following error and trip my reset. Its almost as if Mach isn't looking ahead at the circular portions of the path. Or that when the machine arrives at a G02 or G03 command the machine ignores the axis max acceleration settings. ANy thoughts? Thanks for any and all help!

X-3.2416 Y-4.4236 Z.2779
X-3.2487 Y-4.4109 Z.2753
X-3.2552 Y-4.3979 Z.2727
X-3.2608 Y-4.3845 Z.2702
X-3.3469 Y-4.1632
X-3.3617 Y-4.1251
G3 X-3.3646 Y-4.1183 R.1125
X-3.387 Y-4.0863 R.1125
G1 X-3.4046 Y-4.0547
X-3.4184 Y-4.0237
X-3.4276 Y-3.9972
X-3.4336 Y-3.9743
X-3.4376 Y-3.9542
X-3.4423 Y-3.9199
X-3.4446 Y-3.8896

22

CS-Lab / Re: ENC threading module setup for ridgid tapping

« on: May 02, 2016, 05:35:16 PM »

Thanks Hood. I should update in a few days when I have this worked out.

23

CS-Lab / Re: ENC threading module setup for ridgid tapping

« on: May 02, 2016, 05:28:41 PM »

That is going to be the only way it will all work together. The only problem is spindle orientation for the tool changer. For the tool changer to work, the spindle turns at a very low rpm until a pneumatic dog locks out the spindle and orients it. All this is performed by the DL06. I think to make this work I'm going to have to program half the tool change in VB in the M6 macro. Hmmm. Any ideas for a good resource on learning VB enough to program input and output logic in VB? One of the good things about the plc was that I could program the plc to never rotate when the limit switch signaling the engagement of the dog was active.

24

CS-Lab / Re: ENC threading module setup for ridgid tapping

« on: May 02, 2016, 05:18:19 PM »

No. I have an AD dl06 running the spindle so I can run the tool change. I have a brain that outputs via modbus the command speed, on off command and the forward and reverse to registers on the dl06.

25

CS-Lab / Re: ENC threading module setup for ridgid tapping

« on: May 02, 2016, 05:12:05 PM »

 Thanks hood. That took care of the loading problem. Unfortunately I've run into another problem. When I run your code for the M84 operation the program runs down to the m84 line and then stops. The spindle does not turn. The program runtime continues for a few seconds and them mach just freezes. I wondering if the threading program depends on the spindle being under control of the IPA.

26

CS-Lab / Re: ENC threading module setup for ridgid tapping

« on: May 02, 2016, 04:32:47 PM »

Well, I know its been forever, but I finally machined up a mount for the encoder on the spindle. I have the encoder talking with the enc threading module and the read-out is accurate. However, when I try and program in M84 Mach freezes in the 'toolpath generation' window and crashes. I have installed their macro and their g code file. On one the few occasions I was able to cancel out of the toolpaths generation window was able to press run and but the program kept running but wouldn't move past the M84 line. I turned the spindle by hand and the Z axis moved accordingly.

I have the spindle set up on a VFD. I hope thats not a problem.

27

*****VIDEOS***** / Coolant pump, enclosure and lights upgrade!

« on: April 26, 2016, 11:25:42 AM »

<iframe width="560" height="315" src="https://www.youtube.com/embed/owJ2zx9cuTg" frameborder="0" allowfullscreen></iframe>

28

*****VIDEOS***** / Encoder swap video

« on: March 12, 2016, 07:33:44 PM »

Hey guys. I just swapped out the encoders on my Matsuura MC 500 be retrofit. The controller needs a 5v signal and the stock encoders were 12v. Machine works like a champ now.
http://youtu.be/G07ck2G7PgE

29

CS-Lab / Re: Problem with index homing

« on: March 12, 2016, 07:30:29 PM »

Index homing problem solved!!!! I know it's been forever guys. But,  as I suspected, the problem was in the optocouplers. I used my Osciliscope to read the signal coming out of the optocouplers and it was very noisy. So, I bought three new encoders from US digital and fit them up to my encoder bodies. index coming now works flawlessly. something else I didn't realize was that the optocouplers introduced a good deal of lag into the system.  I could never run my machine to its full potential without getting a PID loop error.  But with these new encoders my machine is blazing fast!  I made a quick video of my encoder replacement if anyone wants to check it out. http://youtu.be/G07ck2G7PgE

30

CS-Lab / Choosing a 4th axis for the ip-a

« on: January 08, 2016, 08:15:19 PM »

Hey guys,

     I'm looking into adding a 4th axis to my matsuura mc500v retrofit. Since the ip-a is an analog controller, I'm not sure there are a whole lot of options out there for guys wanting A and B axis. Most if not all the 4th axis I've seen on ebay appear to be digital in nature. Anyone know of a good older model 4th axis that will take + or - 10v? Thanks!

jonathon