Marlin 1.1.6 Delta

[prahjister]

Bug Report

• Description: --- UI sluggish unresponsive
• Expected behaviour: --- not sluggish unresponsive
• Actual behaviour: --- very hard to use menu timeout or blank screen
• Steps to reproduce: print anything

Also have to power cycle to recognize SDcard

I will upload config in the morning. Thank you.

Using mks 1.4 with 2560 and 4 line screen with sdcard

He3d k280

I thought slowing down print would help but doesn't. I have not slowed all the way down.

[thinkyhead]

Do you see the same issue with bugfix-1.1.x branch? It's possible the issue you are seeing is fixed in the latest code.

[prahjister]

I will test. Thank you for your efforts. I have had really good success and only this minor issue. Auto calibration rocks. I was printing in about 30 minutes coming from repetier.

[thinkyhead]

I'm gratified to hear that auto-calibration works well! @LVD-AC puts a lot of heart and soul into it.

[prahjister]

UI is still sluggish. I did slow the print down more with the knob and returns to normal. I think that this is an acceptable solution. I guess the next question is there anything that I can do to reduce the load on the processor? I only made changes to the configuration.h Printing @ 60mm/s
Configuration.zip

[LVD-AC]

Try diminishing DELTA_SEGMENTS_PER_SECOND 200 to e.g. 160

"Saint Peter don’t you call me ’cause I can’t go I owe my soul to the company store"

[thinkyhead]

We put a huge amount of effort last year into optimizing graphical display drawing and concocting a method to throttle back display updates when the planner buffer is in danger of starving. If your display is being unresponsive, it is likely due to too-small segments being sent to the planner, which are getting processed too quickly. Reducing the DELTA_SEGMENTS_PER_SECOND setting will produce slightly longer segments without slowing down the print.

Also try playing with the following settings to see if you can get the screen to draw more efficiently:

/**
 * Additional options for Graphical Displays
 *
 * Use the optimizations here to improve printing performance,
 * which can be adversely affected by graphical display drawing,
 * especially when doing several short moves, and when printing
 * on DELTA and SCARA machines.
 *
 * Some of these options may result in the display lagging behind
 * controller events, as there is a trade-off between reliable
 * printing performance versus fast display updates.
 */
#if ENABLED(DOGLCD)
  // Enable to save many cycles by drawing a hollow frame on the Info Screen
  #define XYZ_HOLLOW_FRAME

  // Enable to save many cycles by drawing a hollow frame on Menu Screens
  #define MENU_HOLLOW_FRAME

  // A bigger font is available for edit items. Costs 3120 bytes of PROGMEM.
  // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
  //#define USE_BIG_EDIT_FONT

  // A smaller font may be used on the Info Screen. Costs 2300 bytes of PROGMEM.
  // Western only. Not available for Cyrillic, Kana, Turkish, Greek, or Chinese.
  //#define USE_SMALL_INFOFONT

  // Enable this option and reduce the value to optimize screen updates.
  // The normal delay is 10µs. Use the lowest value that still gives a reliable display.
  //#define DOGM_SPI_DELAY_US 5
#endif // DOGLCD

[prahjister]

I adjusted the DELTA_SEGMENTS_PER_SECOND to 180 and uncommented #define DOGM_SPI_DELAY_US 5. After clearing eeprom and starting over.

Seems to have cleared the issue. Sometimes when I press the button to change setting midprint it goes blank but if i turn the wheel it appears.

Might be worthwhile to change the title to include sluggish UI or slow updates

The sdcard randomly doesn't work until a power cycle when removed and reinsterted. Will search issues to try to find solution

Thanks again for all your effort.

[prahjister]

It appears to be a poorly made SD Card. Tried couple other SD cards and they work fine. Used proper sd card formatter and still no luck. Problem solved

[novio8]

Hi prahjister,
you wrote that you came from Repetier FW.
What are your expiriences with Marlin VS Repetier FW on Delta.
I installed Marlin first on Mega + Discount LCD. Now I"m using Repetier
printing is not "smooth" as I would like.

[prahjister]

I did not print anything big I could never get it calibrated well enough without gouging the plate in repetier. I only printed small items. Marlin seems like it is working very well for me.

[novio8]

thanks