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Re: Could use some help with step calculations

December 11, 2019, 6:11 am
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Steps/m look fine more likely to be a delta setting out somewhere

#define DELTA_DIAGONAL_ROD 271.50
#define DELTA_HEIGHT 302.85
#define DELTA_RADIUS 133.22

and what material, you do know that ABS shrinks approx 8%
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Re: Could use some help with step calculations

December 11, 2019, 6:39 am
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Delta settings were auto-calibrated, but that doesn't mean that they're correct!

I'm using eSun PLA+ but I don't know if I need to allow for shrinkage with this material (I must admit that's not a factor I'd considered...)

UPDATE: Just did a quick Google on PLA shrinkage - apparently it's 2.0 to 2.5%, so that is starting to match my results... maybe in the future I will just have to add a 'shrinkage factor' when printing larger items.
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Re: TMC2130 Not Moving. Marlin 2.0. M122 "Unknown command"

December 11, 2019, 12:58 pm
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If you do power your board from USB, you can't just power up the power supply and have the drivers work correctly. You have to ensure that Marlin knows that the power supply has come online so it can reinitialize the drivers. The normal way to do this is by using the PS_ON pin and enabling PSU_CONTROL in the Marlin configuration. Then you can turn on the power supply with M80 and Marlin will reinitialize your TMC drivers.
Otherwise you will have to manually run M501 after turning on 12V power so that the drivers get the right initialization.
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mixing extruder trouble - marlin / mega / ramps / reprap x3 expander

December 11, 2019, 5:59 pm
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mixing extruder trouble - marlin / mega / ramps / reprap x3 expander

Who's got experience with mixing extruder settings? I'm setting up a 5 stepper mixing head. Started with a re-arm board but had to backtrack to mega because it seems it cannot support the x3 expander that I'm utilizing to drive the additional extruder motors.

I'm working with Marlin 2.0 / arduino / mega / ramps / reprap x3 stepper expander. I'm working on getting 5 extruder steppers to function as a mixing extruder - all 5 steppers rotate correctly in the positive - but E2 does not rotate backwards - it I tell it to go backwards it actually goes forwards (not reversed - only turns one direction regardless of positive or negative commands). Everything works on my machine except for one of the mixing steppers does not understand how to turn backwards. Wiring checks out, and the stepper driver checks out (I've tested these by swapping components to different axis).

The appropriate changes have been made to my pins.h file, I think:

#ifndef E2_STEP_PIN
#define E2_STEP_PIN 64
#endif
#ifndef E2_DIR_PIN
#define E2_DIR_PIN 59
#endif
#ifndef E2_ENABLE_PIN
#define E2_ENABLE_PIN 44
#endif
#ifndef E3_STEP_PIN
#define E3_STEP_PIN 40
#endif
#ifndef E3_DIR_PIN
#define E3_DIR_PIN 63
#endif
#ifndef E3_ENABLE_PIN
#define E3_ENABLE_PIN 42
#endif
#ifndef E4_STEP_PIN
#define E4_STEP_PIN 57
#endif
#ifndef E4_DIR_PIN
#define E4_DIR_PIN 1
#endif
#ifndef E4_ENABLE_PIN
#define E4_ENABLE_PIN 58
#endif

I'm pretty baffled at the moment... any help would be greatly appreciated.
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Re: mixing extruder trouble - marlin / mega / ramps / reprap x3 expander

December 11, 2019, 7:58 pm
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Just a guess

D59 is also known a A5

This is used in the ramps pins.h #define FILWIDTH_PIN 5 // Analog Input on AUX2

D59 is also mentioned in a number of places...

I would change all these conflicts to -1
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Re: Could use some help with step calculations

December 11, 2019, 10:53 pm
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Quote
Dust
... you do know that ABS shrinks approx 8%

Are you sure? Isn't it rather 0.8%?
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Error compiling Marlin-bugfix-2.0

December 11, 2019, 9:10 am
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I was able to compile only a few days ago with no issues.
Today I tried and I got the error:


HARDWARE: LPC1768 100MHz, 31.80KB RAM, 464KB Flash
DEBUG: Current (cmsis-dap) On-board (cmsis-dap) External (blackmagic, jlink)
PACKAGES: framework-arduino-lpc176x 0.1.3, toolchain-gccarmnoneeabi 1.80201.190214 (8.2.1)
Converting Marlin.ino
'arm-none-eabi-g++' is not recognized as an internal or external command,
operable program or batch file.
*** Error 1

After that I checked for libraries that needed updating. There were several but updating them did not alleviate the error.
Any ideas?
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Re: Error compiling Marlin-bugfix-2.0

December 11, 2019, 4:15 pm
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No mention of os, development environment or anything useful... Impossible to answer.
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Re: Error compiling Marlin-bugfix-2.0

December 11, 2019, 5:50 pm
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But i'm going to guess windows 10, and you just installed the latest windows update and it reset your paths..

You will need to reinstall platformio again...
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Re: MKS SGen L V1.0

December 12, 2019, 8:37 am
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So to update anyone curious.

Marlin 2.0 release on 1 Dec 2019.

So far I have motor movement. I have sensorless homing working on the x and y axis. The y axis though seems hit or miss but the fact that others have stated they couldn't get it to work on this setup just makes me keep pushing.

To reiterate:

I am using the MKS SGEN-L 32 bit with the bundled MKS TMC2209 V1.0 drivers. Marlin 2.0 works on the board and the sensorless homing can at least be achieved on this bundle. Now I believe I have to tune my currents and speeds to get my y axis homing to be more reliable.
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Re: Could use some help with step calculations

December 12, 2019, 11:01 am
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8%, according to this site (first item in a Google search) : [www.fabbaloo.com]

0.8% is right for injection moulding ABS, according to another site I just looked at.
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Re: Marlin 2.0 Hardware

December 12, 2019, 4:17 pm
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If you already have a RAMPS and the drivers, you might want to take a look at the Re-ARM - it's an almost plug and play 32 bit replacement for the Arduino Mega. There are some differences with respect to display connectors (it supports the RepRapDiscount Full Graphics display but you need a slightly modified cable) and the fact that it's 3.3V instead of 5V so if you have any peripherals that run off 5V like a BLTouch you might need some more tweaks, but otherwise it's a straightforward upgrade.
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Re: Marlin 2.0 Hardware

December 12, 2019, 11:56 pm
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The SKR v1.3 really was easy to setup for me. It has everything I need and in one case I couldn't use a proximity sensor because of the endstop pullups being hardwired. However, I changed pins in Marlin and it ran flawlessly.
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Re: Marlin 2.0 Hardware

December 13, 2019, 2:34 am
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The SKR v1.4 has just been released. Looks like they addressed the probe issues

BTT SKR V1.4
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Re: Marlin 2.0 Hardware

December 13, 2019, 5:59 am
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Quote
Dust
The SKR v1.4 has just been released. Looks like they addressed the probe issues

BTT SKR V1.4

I'm so gonna buy this when it becomes available.
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Re: Marlin 2.0 relative extrude on external signal

December 13, 2019, 6:22 am
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Hi this thread is of interest to me. I'm trying to do the same thing.

evo85210, did you succeed after all?

Regards,

JFCh
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Print file confirmation screen

December 13, 2019, 2:08 pm
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Hello,

I apologize if this has been covered before but my searches did not come up with anything.

I have two printers, one running Marlin 2.0 and anther running 1.1.9. On the one running 2.0 when I print from the SD card I get a confirmation screen showing the selected file name with a cancel or continue option, I don't get this on the one running 1.1.9. Is there a way to enable this or is it a 2.0 only feature?

The clickwheel on the 1.1.9 machine is really sensitive and I'm always having issues with the wrong file being selected and having to restart prints so this feature would be very helpful. I did find the following thread where the feature was discussed but nothing about how to enable it, any help would be greatly appreciated.


[github.com]
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Re: It's a regular stripe, but where should I fix it?

December 14, 2019, 4:12 am
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Re: Error compiling Marlin-bugfix-2.0

December 14, 2019, 4:54 am
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Thank you. That sounds possible. I'll report back after reinstalling Platform IO.
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Waves when printing

December 14, 2019, 4:55 am
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I apologize in advance for my English, it is not my native language.

Configured Marlin firmware 2.0.x for LPC1768 processor, compiled and flashed. Boards MKS sBase (DRV8825 with microstep 1/32), BigTreeTech SKR v1.3 (DRV8825 with microstep 1/32) and many others. On both boards, printing occurs in waves, as in the photo. On all photos on the left-the seal with firmware Marlin 2.0.x, on the right-Smoothieware. Cost to flash again Smoothieware, the printer once again prints perfectly.
To build the firmware, Platformio was used, with a choice in the file "Platformio.ini " LPC1768.
Both of these boards work correctly with Marlin 2.0.x firmware, with the exception of print defects.
All printouts are made exclusively on the same printer.

My Configurations
[attachment 113667 MarlinConfig.zip]

Steps to Reproduce
Configure the Marlin firmware 2.0.x for LPC1768 processor
Select in the file Configuration.h "MKS sBase" motherboard or customize for "BigTreeTech SKR V1.3" motherboard.
Compile firmware and flash the printer motherboard.
Run "Autotune" for Hotend pid controllers and heating bed. Enter the received values into the firmware, compile and flash the motherboard again.
Make a trial print.
Expected behavior: After the test printing was expecting a straight vertical wall on the model.
[attachment 113658 Expectedbehavior.jpg]
Actual behavior: The outer walls of the model are completely in horizontal waves. This defect is manifested exclusively with the firmware Marlin. On smoothieware firmware, the walls of the model are perfectly straight.
[attachment 113660 Actualbehavior.jpg]
additional photo
[attachment 113661 IMG_20190417_0754342.jpg]
[attachment 113662 P1120724.JPG]
[attachment 113663 P1120725.JPG]
[attachment 113664 P1120726.JPG]
[attachment 113665 P1120727.JPG]
[attachment 113666 P1120728.JPG]
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