Marlin RC7

[rerouter]

as RC3 is now a little bit old, i thought i would upload the latest working version setup for the G2S pro,

Like before you will likely need to adjust small things like rod length, and build volume height. 

Marlin.7z (308.4 KB)

Edit: The latest version is furthur down the page.

[uzi3l]

I have a problem. atm I'm only using extruder 2 which is the reverse one when i try to print instead of feeding it to the hot end it retracts it. where or how do i fix it?

[rerouter]

#define INVERT_E0_DIR false
#define INVERT_E1_DIR true
#define INVERT_E2_DIR false
#define INVERT_E3_DIR false

You will want to change E1 to false, this may mean you need to also set E0 to true if you wish to use the first again.

This is almost exactly half way down the page for configuration.h

[uzi3l]

yeah figured it out.

another question i been trying to find it but the printer after homeing. will move the effector and carriages down about 20mm is this normal and where can i change this. also on the LCD is always 0.01 lower than the repetier software. this doesn't actually make any difference in printing i think as it takes 0.07 before the motors move.

[rerouter]

#if ENABLED(DELTA)

// move to a height where we can use the full xy-area

do_blocking_move_to_z(delta_clip_start_height);

#endif

In marlin_main.cpp

Line 3180,

If you remove him, it will not drop down

The reason for it dropping down to that height is that is where it has full X/Y movement, anything above that is constrained to a smaller area in the middle, which does indeed mean i only really have a build area of 177 high instead of 199, 

[JohnOCFII]

Sept 15, 2016 7:46:31 GMT rerouter said:

as RC3 is now a little bit old, i thought i would upload the latest working version setup for the G2S pro

How does it differ from the RC3 version combined with the "community" mods?  Does this have all the changes from the community version?

I'm curious how many changes were required outside of configuration.h?

(I've been tempted to run a diff between the RC7, and the current community version based on RC3 to satisfy my curiosity, but have not gotten around to that yet.)

Thanks for your efforts!

John

[rerouter]

Its missing the community delta calibration menu, currently there is a simplified version included in RC7,
And i believe the advanced correction settings (e.g. rods not being exactly 120 degrees apart)

Other than that, it was primarily just things in different order on the configuration files.

I did have to patch 2-3 things to get it working with the latest arduino version, (more strict naming of some things)

My main reason for the jump was the community version had a bug when you try to tune some print settings it would instead go to flowrate and lock you there until the screen timed out.

[JohnOCFII]

Sept 21, 2016 20:54:14 GMT rerouter said:

Its missing the community delta calibration menu, currently there is a simplified version included in RC7,
And i believe the advanced correction settings (e.g. rods not being exactly 120 degrees apart)

Other than that, it was primarily just things in different order on the configuration files.

I did have to patch 2-3 things to get it working with the latest arduino version, (more strict naming of some things)

My main reason for the jump was the community version had a bug when you try to tune some print settings it would instead go to flowrate and lock you there until the screen timed out.

Thanks for the details.  I use the G29 auto-bed leveling that seems to work (well, that probe moves ) in the Community version.  Would you expect that to still work as it did in the Community version?

[rerouter]

From what i can see on the issue logs for the marlin firmware, the bed leveling of deltas is working, however i would have to leave setting it up to yourself, as after doing the improvements such as fixing my bed and properly calibrating the thing i removed the probe from mine as it was no longer needed

[JohnOCFII]

Sept 22, 2016 9:29:37 GMT rerouter said:

From what i can see on the issue logs for the marlin firmware, the bed leveling of deltas is working, however i would have to leave setting it up to yourself, as after doing the improvements such as fixing my bed and properly calibrating the thing i removed the probe from mine as it was no longer needed

Thanks for checking.  Now that I have my Original Prusa i3 MK2 working, I feel more comfortable making changes (such as this firmware change) even if it means I might be out of service for a while on the G2S Pro.

I'll give it a shot next week.

John

[rerouter]

This Copy now includes the fixed PID scheme, 

To anyone that used my earlier RC7 release, you will only need to overwrite temperature.cpp, and temperature.h to enjoy it,

After updating you will need to run a fresh PID tune from room temp cold,


I think the results speak for themselves, the 2 peaks down the bottom are 50mm extrusions at 20mm/s speeds, 

Attachments:

Marlin.7z (315 KB)

[JohnOCFII]

Excellent. I think I see my weekend project.

[JohnOCFII]

Sept 22, 2016 9:29:37 GMT rerouter said:

From what i can see on the issue logs for the marlin firmware, the bed leveling of deltas is working, however i would have to leave setting it up to yourself, as after doing the improvements such as fixing my bed and properly calibrating the thing i removed the probe from mine as it was no longer needed

I finally got around to installing and testing your RC7 this evening.

I decided to start from the Geeetech QuickStart Guide.  Homing and setting the initial 4 height settings around the edge, plus center, seemed to work fine.

The G29 auto-level, unfortunately, is not behaving.  Whatever code phervier added to check to ensure the probe is down doesn't seem to be included in the RC7 code.  Also, the actual probing started in the center of the build plate, and started to zig-zag UP as it went from point to point, and looked to be heading off the rear of the build plate (at a height of about 50mm!) before I hit the emergency stop button.

When I get a chance, I'll see if the code changes are easily isolated, but if it's at all complicated, I'll have to defer to others.  Of course, if no one else is interested in the G29 code working -- I'll probably just stick with the RC3.

[Of course, at the end of the day, unless it truly works as a mesh leveler like the MK2, I can probably just skip it too, but while my manual leveling is pretty good, if it could truly handle "smoothing" the sub 1mm differences across the build plate, that would be wonderful.  For reference, across the 5 test positions from the scripts in the manual, mine goes from lightly touching a piece of paper to being pretty tight against a piece of paper.]


Thanks again for getting this to work on the G2S and posting in the group!

John

[JohnOCFII]

Oct 14, 2016 2:54:30 GMT JohnOCFII said:

Sept 22, 2016 9:29:37 GMT rerouter said:

From what i can see on the issue logs for the marlin firmware, the bed leveling of deltas is working, however i would have to leave setting it up to yourself, as after doing the improvements such as fixing my bed and properly calibrating the thing i removed the probe from mine as it was no longer needed

When I get a chance, I'll see if the code changes are easily isolated, but if it's at all complicated, I'll have to defer to others.  Of course, if no one else is interested in the G29 code working -- I'll probably just stick with the RC3.

I gave it a shot with a line-by-line comparison with the RC3 configuration.h.  I did make some changes that were hopeful, but the behavior with auto-leveling was unchanged.  

[uzi3l]

Im must be missing something.
I can't find this in your version
delta[X_AXIS] = sqrt((delta_diagonal_rod_2_x)
- sq(delta_tower1_x-cartesian[X_AXIS])
- sq(delta_tower1_y-cartesian[Y_AXIS])
) + cartesian[Z_AXIS];
delta[Y_AXIS] = sqrt((delta_diagonal_rod_2_y)
- sq(delta_tower2_x-cartesian[X_AXIS])
- sq(delta_tower2_y-cartesian[Y_AXIS])
) + cartesian[Z_AXIS];
delta[Z_AXIS] = sqrt((delta_diagonal_rod_2_z)
- sq(delta_tower3_x-cartesian[X_AXIS])
- sq(delta_tower3_y-cartesian[Y_AXIS])
) + cartesian[Z_AXIS];'

i want to adjust/correct my tower/rod dimensions. I'm blind