carl_m1968 wrote:

IronMan wrote:

In Marlin configuration.h:

// Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).
// The offset has to be X=0, Y=0 for the extruder 0 hotend (default extruder).
// For the other hotends it is their distance from the extruder 0 hotend.
// #define EXTRUDER_OFFSET_X {0.0, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
// #define EXTRUDER_OFFSET_Y {0.0, 5.00}  // (in mm) for each extruder, offset of the hotend on the Y axis

Uncomment the last 2 lines and then enter the proper offset values in the brackets, where the first integer represents your first extruder E0 (no offset); then each of the other entries represent the offset values from that...so assuming your extruders are 20mm apart in the X axis, yours should look something like:
   
                                               E0      E1      E2                                       

#define EXTRUDER_OFFSET_X {0.0, 20.00, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
#define EXTRUDER_OFFSET_Y {0.0, 0.00, 0.00}  // (in mm) for each extruder, offset of the hotend on the Y axis

Be advised I have not done this for more than 2 extruders, but give it a try...

I thought the E2 value should be 40 since the values use the E0 as the origin. Not the distance from ex 0 to 1 then from 1 to 2. But the distance from 0 to 1 and 0 to 2 since 0 will always be the start point.

Good catch! Correct...my bad.  It uses E0 as a reference for all.

That's what I was thinking. I have only dealt with dual and it was the case that way so i thought it would for others. But this line pretty much confirms it..

// For the other hotends it is their distance from the extruder 0 hotend.

Also note to OP:

As we have shown you can set it up in the firmware, but that does not get relayed to the slicer in any way. The slicer that your customer uses will still need to know the offset values as well and the customer will need to input those in their slicer settings.

So again you can supply these values with instructions or program your own host and slicer with the settings embedded but please note as with most of us here customers DO NOT like being locked into a host and slicer as they all have different performance levels.

You could contact Simplify3D and see if they would be interested in supporting your product and have a prebuilt profile included in their setup. You guys might could even work out a license agreement where their software is shipped with your machines.

IronMan wrote:

In Marlin configuration.h:

// Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).
// The offset has to be X=0, Y=0 for the extruder 0 hotend (default extruder).
// For the other hotends it is their distance from the extruder 0 hotend.
// #define EXTRUDER_OFFSET_X {0.0, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
// #define EXTRUDER_OFFSET_Y {0.0, 5.00}  // (in mm) for each extruder, offset of the hotend on the Y axis

Uncomment the last 2 lines and then enter the proper offset values in the brackets, where the first integer represents your first extruder E0 (no offset); then each of the other entries represent the offset values from that...so assuming your extruders are 20mm apart in the X axis, yours should look something like:
   
                                               E0      E1      E2                                       

#define EXTRUDER_OFFSET_X {0.0, 20.00, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
#define EXTRUDER_OFFSET_Y {0.0, 0.00, 0.00}  // (in mm) for each extruder, offset of the hotend on the Y axis

Be advised I have not done this for more than 2 extruders, but give it a try...

I thought the E2 value should be 40 since the values use the E0 as the origin. Not the distance from ex 0 to 1 then from 1 to 2. But the distance from 0 to 1 and 0 to 2 since 0 will always be the start point.

Good catch! Correct...my bad.  It uses E0 as a reference for all.

In Marlin configuration.h:

// Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).
// The offset has to be X=0, Y=0 for the extruder 0 hotend (default extruder).
// For the other hotends it is their distance from the extruder 0 hotend.
// #define EXTRUDER_OFFSET_X {0.0, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
// #define EXTRUDER_OFFSET_Y {0.0, 5.00}  // (in mm) for each extruder, offset of the hotend on the Y axis

Uncomment the last 2 lines and then enter the proper offset values in the brackets, where the first integer represents your first extruder E0 (no offset); then each of the other entries represent the offset values from that...so assuming your extruders are 20mm apart in the X axis, yours should look something like:
   
                                               E0      E1      E2                                       

#define EXTRUDER_OFFSET_X {0.0, 20.00, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
#define EXTRUDER_OFFSET_Y {0.0, 0.00, 0.00}  // (in mm) for each extruder, offset of the hotend on the Y axis

Be advised I have not done this for more than 2 extruders, but give it a try...

I thought the E2 value should be 40 since the values use the E0 as the origin. Not the distance from ex 0 to 1 then from 1 to 2. But the distance from 0 to 1 and 0 to 2 since 0 will always be the start point.

It has to be set in the host as it is a function of the slicer. I am afraid that this one setting tjat your users will have to setup themselves. The best you can do is offer very explecite instructions amd supply the values to guide them.

The above should work as well, but If you do choose to set it up in firmware, then you can use the settings in the slicer to make minor adjustments if necessary...

// Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).
// The offset has to be X=0, Y=0 for the extruder 0 hotend (default extruder).
// For the other hotends it is their distance from the extruder 0 hotend.
// #define EXTRUDER_OFFSET_X {0.0, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
// #define EXTRUDER_OFFSET_Y {0.0, 5.00}  // (in mm) for each extruder, offset of the hotend on the Y axis

Uncomment the last 2 lines and then enter the proper offset values in the brackets, where the first integer represents your first extruder E0 (no offset); then each of the other entries represent the offset values from that...so assuming your extruders are 20mm apart in the X axis, yours should look something like:
   
                                               E0      E1      E2                                       

#define EXTRUDER_OFFSET_X {0.0, 20.00, 20.00} // (in mm) for each extruder, offset of the hotend on the X axis
#define EXTRUDER_OFFSET_Y {0.0, 0.00, 0.00}  // (in mm) for each extruder, offset of the hotend on the Y axis

Be advised I have not done this for more than 2 extruders, but give it a try...

Hi:
Thanks for all the help, we fix the steps/mm. 
Now need help to find how to set the extruder position in firmware but not in host.

It has to be set in the host as it is a function of the slicer. I am afraid that this one setting tjat your users will have to setup themselves. The best you can do is offer very explecite instructions amd supply the values to guide them.

Thanks for help.

This is what we try to do.
Many thanks for the helping.

For the steps/mm, now I go try