Dynomotion Forum

Hi Dana, Jogging with non-linear kinematics is actually somewhat more complex than coordinated motion because it can start/stop/change direction unpredictably unlike coordinated motion that can be pre-planned. Let's get the homing sorted out and see how it moves. I think the axes should homed in a w...

Hi Tim, on Fed hold two sets of arrows are displayed. Where do they come from and how can i remove them please ? This is a powerful feature of KMotionCNC which is the ability to move forward and backward along the GCode Path while in Feed Hold. They automatically become visible while in Feed Hold. W...

Hi Thomas, Kogna's 3.3V regulator is rated for 1.6A and should shut down at 1.9A. The first 8 of 10 Aux inputs have 150 Ohm pull down resistors. So pulling those inputs up to 3.3V would consume 22ma each. I'm surprised that extra load causes a problem. But I suppose if there is enough devices and IO...

Hi Dana,

Yes if you’re using KMotionCNC those can be set in the Tool Setup | Trajectory Planner Screen. Note even though the variable is called CountsPerInch it is actually counts per degree for an angular axis.

Not sure what you mean by the example file reads them in.

Hi Thomas, I couldn’t find a specification on the SSR but it’s hard to imagine its input would be an issue. Although some images I found show an LED with no resistance. What value resistor did you add? Grounding back to the 5V supply should be ok. The grounds on Kogna are all common. Although possib...

Hi Thomas,

How is Kogna being powered?

What type of Solid State Relay is it? How is it wired?

If the outputs of the relays are disconnected does the problem still occur?

How are the bits being activated? KMotion’s Digital IO Screen?

Have you checked the JP10 cable/wiring for shorts?

Still no luck reproducing this. But we found one scenario where a tiny velocity sent to KFLOP when rounded to 6 decimals could become zero. Here is a patch for Version 5.4.1 that uses scientific notation in such cases. Could you test to see if it fixes the issue? KMotionCNC.exe copy to the C:\KMotio...

Sorry I'm having a hard time coming up with a scenario that would cause the zero constraint error. Any further info or a way to reproduce would be helpful. The cooling would be very strange, but it seems that might have been a coincidence? MoveEx would be more related to the Jog buttons but you indi...

Hi, What Version of KMotion are you running? Somehow a microscopic move of Axis 0 is being commanded with a maximum allowed velocity of zero. When those errors are displayed enter 'Vel0' in the console screen to see if the velocity is really 0. Regarding CSS: Please post your MySpindleDefs.h and CSS...

Hi Scott, The device specification guarantees the pin should be below 0.4V for a load of 40ma. A 10K Ohm would only draw 0.5ma at 5V. So something is wrong. LVTTL signals are guaranteed to be low at 0.8V but should be driven to 0.4V for noise immunity. Are you connecting the ‘+’ pin to +5V? That see...