5 Axis ParPort Stepper Setup with RTCP

andypugh
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24 Dec 2017 01:14 #103510 by andypugh

Replied by andypugh on topic 5 Axis ParPort Stepper Setup with RTCP

marq_torque wrote:
Thing is i am running Pulse Sign Configuration so PID Tuning in EMC make any difference ?

Some stepper systems use PID. PnCConf sets up Mesa steppers with a PID because it works a bit better.

"DEFAULT_ACCELERATION = 2.0 - In machines with nontrivial kinematics, the acceleration used for "teleop" (Cartesian space) jogs, in machine units per second per second. "
So isn't it effective for jog move only ? While in my setup jog move it does same as MDI command.

Surely it is worth testing the change at least? It takes moments.

Any help regarding tool offset ? I have Er25 Collet dircet drive spindle so changing all time tools. not the holder so i cant measure tool length all time.

forum.linuxcnc.org/10-advanced-configura...-off?start=90#103477

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marq_torque
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08 Jan 2018 10:29 #104155 by marq_torque

Replied by marq_torque on topic 5 Axis ParPort Stepper Setup with RTCP

Thank You Andy,

It was Mistake to disable step gen fb line in hal file. So I was getting swinging movement. It's solved now

Now I am stuck at tool Length offset and tool height sensor. And M code.

I tried g38.2 it ends movement as soon as it touches the sensor. But not retracting and not slowly reversing to cutoff the signal.
Also how to get tool length offset in tool table from DRO ? Is there any reference to start from ?
And all after that .. is it possible to shoot just one m code to perform all this ?

Regards
Ankit

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marq_torque
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05 Jun 2026 07:41 #346913 by marq_torque

Replied by marq_torque on topic 5 Axis ParPort Stepper Setup with RTCP

Hello Andypugh,

This modification was really helpful in last machine I made. I'm now trying to achieve similar but Linuxcnc has changed a alot. Also changed a lot in kinematics. I tried to modify kinematics as per this thread but as expected it's failing with errors.

I want to use XZ and B axis with TCP along with tool length probing. Setup in this thread is working in older version.. I'm struggling to getit worli with Debian 13 rt 2.9.8 Any help or suggestions would be appreciated,

Thanks

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grandixximo
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08 Jun 2026 06:42 #346962 by grandixximo

Replied by grandixximo on topic 5 Axis ParPort Stepper Setup with RTCP

Build errors? Can you share your current code? Not many people will have the time to read 10 pages of an 8 years old thread...
Be more specific about what you are struggling with.

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