Thingiverse
Heroic Printing Failures with the Thing-O-Matic and MK7 by SparkySD
by Thingiverse
Last crawled date: 4 years, 7 months ago
After 16+ attempts at printing out a large box with the TOM, using a bunch of recommended settings, it's time to give up !!
Either the object first layer won't stick to the HBP and it warps uncontrollably or the filament gets so warm printing large surface area objects that it melts in the extruder feed gears and then the printing stops altogether !
Despite numerous fans on the extruder motor and lots of parameter changes, there's no improvement in the ability of the TOM to make it past the first couple layers without failing.
At least the warping is reduced by adding 'mouse ears' to the object corners, selecting multiple shells on Skeinforge, better leveling of the HBP, precisely zeroing the z-stage height, cleaning the kapton with acetone between prints, etc.
Perhaps the short distance between the extruder nozzle and the extruder motor gear wheel in the Mk7 design causes the filament to melt prematurely and so the MK7 can't print objects with large surface areas.
Any suggestions on what to try next would be greatly appreciated.
( Note: Credit for the naming of this Thing goes to http://en.wikipedia.org/wiki/The_Book_of_Heroic_Failures ).
Either the object first layer won't stick to the HBP and it warps uncontrollably or the filament gets so warm printing large surface area objects that it melts in the extruder feed gears and then the printing stops altogether !
Despite numerous fans on the extruder motor and lots of parameter changes, there's no improvement in the ability of the TOM to make it past the first couple layers without failing.
At least the warping is reduced by adding 'mouse ears' to the object corners, selecting multiple shells on Skeinforge, better leveling of the HBP, precisely zeroing the z-stage height, cleaning the kapton with acetone between prints, etc.
Perhaps the short distance between the extruder nozzle and the extruder motor gear wheel in the Mk7 design causes the filament to melt prematurely and so the MK7 can't print objects with large surface areas.
Any suggestions on what to try next would be greatly appreciated.
( Note: Credit for the naming of this Thing goes to http://en.wikipedia.org/wiki/The_Book_of_Heroic_Failures ).