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Hi,

If i run this in a 9 axis config, it blends the corner, and therm condition=2. Wich means TC_TERM_COND_PARABOLIC.
It has a 4th axis a.



Maybe i need a sample file where the motion stops each segment.

Thanks

My spindle has caused a big issue. I wanted my 60000rpm spindle for micro milling etc. But it turns out the drives above 599hz are basically banned now.

So now i have to either get the same spindle custom wound to 36000rpm, or alternatively go to a larger 30000rpm iso20 spindle which has a lot of plusses but is really kinda too big for the machine.

 

Hmmmm

On the bright side I did get the existing spindle behaving since the steel cutting video. It doesn't bog down anymore. Gonna do another nifty video cutting 0-1 steel next week. Waiting on cutters.
 

Very cool machine.

# Module loaded in main hal.
loadusr mitsub_vfd --baud 19200 --port /dev/ttyUSB0 mitsub=01

# custom_postgui.hal Connections for mitsub as it is a user module.
net estop-out mitsub.estop
net spindle-vel-cmd-rpm-abs => mitsub.motor-cmd
net spindle-enable          => mitsub.run
net spindle-cw             => mitsub.fwd
setp mitsub.scale-cmd .084175
 

Are you talking about the tuning on the servo drive? I have already turned it off. I have only adjusted the stiffness setting on the servo drive, but it seems to be useless. I adjusted the stiffness using the p item in the pid

Little machines always look much more beefy and pro with way covers.

I think you have to adjust servo tuning either way. There are parameters impacting speed loop, which is used in velocity mode. In position mode there is extra position loop.

If using position mode, you will have to adjust servo tuning and following error in the servo drive

mb2hal may work

ok M61 Q99 solves that problem all good for now
thanks again for the help guys

2. Yes you can mix The 7I97T MPG input   with other functions
(the MPG encoder counts on the other MPG inputs may change
with the selector switches but they can be ignored since you
are only using 7I97 MPG encoder 0)

3. No the isolated inputs are single ended only

Hello,

I'm building my first LinuxCNC project which is a CNC conversion of a Precision Mathews mill using DMM AC Servos and their DYN4 drivers driven in Analog mode.  I am using a Mesa 7I97T and 7I76. The 7I76 will primarily be used for spindle motor control and additional inputs, if I eventually need them.

I am almost complete with wiring the control breadboard for setup and bench testing but I have questions regarding interfacing a MPG Pendant:

1. I see there are firmware files for the 7I97T+7I76, but nothing supporting MPG. 
2. My current layout is to interface the 7I97T MPG A- with TB4 Pin 1 and B- with TB4  pin 2 (+5V to 3), then use TB4 pins as inputs 4 thru 12 as sourcing inputs for the MPG axis and pulse multiplication switches (+24V to TB4 6,9, and 12).  Is this possible while having the card set to support the MPG encoder on TB4?
3. My MPG pendant encoder can be used double-ended. Is that possible on the MESA?

Thanks,

Skylor

can you also post the HAL code that you use to setup mitsub?

I have configured my ethercat z-axis to velocity mode and used pid to adjust the following error. The advantage of position mode should be that it can be used without much adjustment, while velocity mode requires a lot of adjustment.

Hi,every one ,I found a very good sample configuration in linuxnc in the following path Linuxcnc-Sample-axis-vismach-millturn-millturn. Though the sample is very suitable for our project,but when we tried to  use fusion 360 export the GCODE file,it can't be post processed or it can't be runned.Because there are  only  three post processor file in the fusion 's official lib, LinuxCNC (EMC2),LinuxCNC TurningEnhanced Machine Controller (EMC)
they all looks not fit for the linuxcnc's millturn sample configuration  .Because I'm not so familia with the post processor file cps .May there be anyone share some suitable fusion's post processor cps file for me ,I'll be very grateful for that,thank you .