Almost home! Got endstops installed and wired, motors wired, cable chains done. Also dialed in perpendicularity of router to 6 thou. Now just need to plug cables in to SKR board and begin testing. I used all the same cables from the burly build so it should just run without problems. Excited to cut some wood tomorrow.
View from the back of my build.
Nice and clean. Looks good.
How do I get the youtube video to display here in the forum?
Dual endstops auto home demo here.
Just paste the link.
Looks like this.
Just paste the link.
https://youtu.be/2X3bBj2Xdk8Awesome, super excited to see it moving
Thanks, got it.
Carved “token crown” into a piece of mdf which I then spray painted white and quick sanded. Didn’t have a pen mount and wanted to get the machine dirty anyway.
Crown is 6 inches wide and I only went a millimeter deep to check flatness of my setup. Happy with table flatness.
Final check after all adjustments complete. Five inch square is dead on as are the 1 inch circles. There is perfect registration on all objects. Thanks again Ryan for a great design. I am now going to put this puppy to work!
Those cuts do look pretty good.
Well now we just need another person or two to finish their builds with the same results so I can release the hardware kits and recoup some of the R&D time and money.
What drivers do you have in your skr?
What program are you using to generate your gcode?
I have the TMC2209 drivers. Extremely quiet but overkill when router and vacuum make so much noise. You can barely here the machine move.
Inkscape for design and Estlcam trial version for gcode generation.
On a CNC, I turned off the silent step features so I would always get full torque. There are a couple of neat “features” that don’t really make sense on a CNC.
I turned that off but did do 80% for the waiting torque or whatever they call it. I can’t imagine the non moving axis to need that much power. Who knows though, hard to test.
Marlin doesn’t support Idle current. That’s lame. On my printer I have it set to like 20%, kills the stepper hiss when it’s just sitting there.
I remember a thread where someone thought it was reducing the torque on the Z motor while milling, because the Z was staying still. The Z was dropping while milling. I can’t honestly remember if that fixed it, or we just suspected it and we found something else.
I turned off the “StealthChop” option assuming that is what you are referring to in the Marlin configuration files. I spent most of the rest of the day trying to get Marlin to quit releasing the motors after the job completes. I turn my router on and off manually and when the job completes, the router drops to the surface if I don’t catch it first. I went through every configuration option I could find in the Marlin configuation files. I must have built and rebuild the firmware 15 times trying to find some relief, but never could get any of the X,Y, or Z axis to stay energized after the job.
I finally added gcode to move the router to back left parking spot and placed a block there to catch the router when it falls so as not to drive the spinning bit into the table.
Here is the last configuration I used that still didn’t work.
----------In configuration.h---------------
// Disables axis stepper immediately when it’s not being used.
// WARNING: When motors turn off there is a chance of losing position accuracy!
#define DISABLE_X false
#define DISABLE_Y false
#define DISABLE_Z false
--------In configuration_adv.h----------
// Default stepper release if idle. Set to 0 to deactivate.
// Steppers will shut down DEFAULT_STEPPER_DEACTIVE_TIME seconds after the last move when DISABLE_INACTIVE_? is true.
// Time can be set by M18 and M84.
#define DEFAULT_STEPPER_DEACTIVE_TIME 1200
#define DISABLE_INACTIVE_X false
#define DISABLE_INACTIVE_Y false
#define DISABLE_INACTIVE_Z false // Set to false if the nozzle will fall down on your printed part when print has finished.
#define DISABLE_INACTIVE_E false
.//In SD section
#define SD_FINISHED_STEPPERRELEASE false // Disable steppers when SD Print is finished
define SD_FINISHED_RELEASECOMMAND “G0X40” // Use “M84XYE” to keep Z enabled so your bed stays in place
I am looking for suggestions as how to solve this though the parking option works ok,
