Dynomotion Forum

MainPath is determined and set in the CCoordMotion class. Which the CKinematics class doesn't have access to. So after CCoordMotion creates the CKinematics object it sets a pointer to it in the CKinematics object it created with this statement in CoordMotion.cpp about line 162 Kinematics->MainPath ...

Well, maybe I sort of have some progress. When I try to run/debug with the original fopen line in getParameter(), I get this error in the debug mode: MainPathProblem.PNG It also opens "strlen.asm" at line 69. Process is [6240] KMotionCNC.exe. Not sure exactly what to give you with this. When I look ...

I have debugged with VS before, but it was many years ago. Totally different from what I remembered, but I was also using far smaller projects. I know it is super useful, but I also really can't stand the microsoft stuff and don't want to spend any more time in it than I have to. CString is a MFC (M...

I did not find "BuildAllExamples.sln". I found "BuildExamples.sln" in "C:\KMotion435f\PC VC Examples\BuildExamples." When I opened that, VS wanted to install some python stuff. I let it, now it blew everything up. over 1200 errors. Starting with "identifier "CString" is undefined GCodeInterpreter." ...

Well, I don't understand vstudio debug setup like I thought I might. It gives me errors since I am within the dll and not running the exe. Beyond that, or maybe before it matters, I am not really sure where to be looking or at what for the path issue. Kind of thinking I am losing the interest in fix...

Here are the results from earlier. The important and more accurate lines on the "check" graphs are the green lines. The initial measurements were taken when the machine was at 20C or 68F degrees upon initial startup so the screw/machine was as acclimated as possible. ScrewMappingResults_X_full_48_70...

I got a bit side tracked by another CNC machine design. Too many proverbial squirrels! My lead screw is rigid at one end and has spring tension at the other to help pull the screw tight as it expands/contracts. I had been thinking about the fact that I have been homing to the floating end since that...

http://www.matweb.com/search/datasheet_print.aspx?matguid=bce91350154c4c5bb191ce351cf8072d Oops, that math and spec are off. 6.39 is per deg F. That would mean over a HUGE 50 deg F range, I could see 0.015" total variance. That would be extreme, but possible if I run at the beginning of a cold day v...

The "check" results were generated by using gcode inches to get into position while running the screw mapped kinematic. That means the motor very likely had a little bit of reversing as it closed in and finalized position. With backlash and mechanical issues, that means all that extra was fed into t...

Tom, as usual, very helpful and enlightening. It's not entirely clear what you are doing or expecting. Did you apply any smoothing? Do you think the high frequency stuff is real? My goal is to improve positional accuracy. I would say it is within +/-0.001" now, if I sort of ignore the backlash. Over...