Dynomotion Forum

Hello, I've somewhat recently noticed that, when I first run my C program, the Position and Destination displayed in the "Axes" tab in KMotion.exe jump from 0 to somewhat arbitrary values (sometimes 1, sometimes -1, sometimes 2). I've observed this now at least with version 5.4.0 and 5.4.1, though i...

Hi Tom, Thanks for your reply - since thoroughly shielding my cables and providing a short, direct, DC bond to the chassis, the disconnects no longer appear to be provoked by the broad-spectrum noise resulting from the impulse trigger transformer waveform that we use to achieve breakdown across our ...

Hello, I am currently using a Kogna to control a noisy electric-arc-based metal-additive 3D printer prototype. In the past, we had used the KFLOP to accomplish this, and experienced somewhat frequent "Auto Disconnect" errors. After improving my grounding scheme, and providing a short wide ground str...

Hi Tom, Thanks for getting back to me! As you suggested I've added the --disable_software_pipeline compiler flag, thus far I haven't noticed any unexpected or erroneous behavior - do you have any ideas on what kind of issues I should be keeping an eye out for? Any way that I could "stress-test" it i...

Hello, I am currently using a Kogna to control my custom 3D printer, and for the past few months now have been compiling and linking my firmware external to the KMotion.exe application - mainly for scalability and portability of the source code, as well as for customizability of the build process, e...

Hi Tom, Thanks for the tip regarding the use of 0 second dwell commands to ensure proper acceleration and deceleration of the stage steppers between buffer IO Wait commands, this has had the exact intended effect and removes a major source of potential error which I'm very happy about. I'm reaching ...

Hi Tom, Thanks for the info, I had a feeling that was what's happening just from listening to the steppers. Will definitely give that a try - I assume adding a single 0 second dwell command after each G1 move is sufficient, or would I need to place a 0 second dwell command on either side of the G1 c...

Hi Tom, We require high resolution for our motion stage because the molten metal droplets we are depositing are ~250um in diameter, and small subdivision of this allow us to achieve - among other things - precise overhang angles. The max velocity provided by the JSON file is currently still in steps...

Hi Tom, Thanks for the speedy response! I'm driving a total of four stepper motors from the KSTEP, three of which are responsible for operating an XYZ motion stage and are used to defined the coordinate system (the fourth stepper is used for separate independent motion not driven by GCODE). I curren...

I am currently using a Kogna and Kstep together to operate a metal-additive 3D-printer which utilizes electric arc plasma for a drop-on-demand process. Suffice it to say, this produces a good deal of EMI. Separate to this, I have noticed at least 4 or 5 times now - definitely on the Kogna, and I bel...