Is there a way to print several objects "one at a time" with a common brim or skirt?

[alexsott 0]

Hello there!

 

I need to print 50 small objects at once, "one at a time" mode so the pullbacks are not killing me, connected by a common brim or skirt.

That is to remove them from the printer all together as a single sheet.

 

Currently Cura refuses to slides them if brims are touching each other.

 

Is there a way to do that in Cura?

 

Thanks

[alexsott 0]

[GregValiant 1,251]

I don't think so.  Each model is an entity within it's own bounding box and the brim belongs to the specific model.  If the brims touch then Cura will see the models as interfering with each other.

 

The M32 command can call a gcode from within another gcode file.  By changing the Home Offsets between each call you can change where the print will be on the build plate.

;Print a base that is a 1 layer print and covers the build surface.  At the end of that gcode use M32 to call a second file.  That second file wouldn't need a full startup gcode and definitely wouldn't need an ending gcode.

 

M206 X0 Y0

M32 P !/models/lgbust.gco# ; The file name here might have to be the DOS 8.3 short file name.

M206 X33 Y0 ;Move the Home Offset

M32 P !/models/lgbust.gco#

M206 X66 Y0 ;Move the Home Offset

M32 P !/models/lgbust.gco#

M206 X100 Y0 ;Move the Home Offset

M32 P !/models/lgbust.gco#

M206 X0 Y33 ;Move the Home Offset

M32 P !/models/lgbust.gco#

M206 X33 Y33 ;Move the Home Offset

etc, etc, etc

 

Keep moving the Home Offset and calling the second file ("lgbust.gco" in this example).  The # sign on the end of the line acts like an M400 so there isn't a "read ahead" past the M32.

 

Understand that although I've played with M32 and it works on my printer, I've never done a print that repeats like that.

 

Another option would be to print the huge brim first and then print the "one at a time" file on top of it.  With the nozzle at Z=0.2 a G92 Z0 in the gcode would move the second print up.

Edited March 29 by GregValiant

[alexsott 0]

Thank you - printing a layer/brim first and then printing all the objects at 0.2 elevation seems to be a sound solution.

[GregValiant 1,251]

Just make sure you put the "G92 Z" line at the beginning of the one-at-a-time file.  That file needs to be fooled into thinking its on the build plate.  I suppose if you have ABL it might automatically adjust.

A test print wouldn't hurt.

Edited March 29 by GregValiant