4th axis tangent to path XY

You will need to home the system first before kinematics will become active.

andypugh wrote:

You will need to home the system first before kinematics will become active.

(setting kinstype to "IDENTITY" might fix this, but homing is going to be needed anyway or the C axis will point in a random direction) 
 

andypugh wrote:

You will need to home the system first before kinematics will become active.

Dear Andy,

I homed all the axes. Basically I am trying on a computer which does not have a machine connected to it. so just clicked the homing buttons for the axes one by one.

But No luck. The A axis DRO on screen does not show any movement for X-Y movements.

The A axis can be jooged from jog button and tangentkins.c is active.

You might not see anything on the DRO for the A axis. You are not commanding any A _axis_ moves. _Joint 3_ is being adjusted to keep a constant A angle (of zero) between the path direction and the cutter.

The place to look is in HAL. Open a halmeter to look at the pin joint.3.motor-pos-cmd. That is the pin that will control the motor.

Please refer the attached photo.

No change in joint.3.motor-pos-cmd pin.
 

Does it become non-zero if you jog A?