Nanners' Blog My rantings

1Aug/130

Planned Stepstruder mk7 upgrade

I've been printing very little lately, I've found that ABS prints have been curling more than normal lately, and that PLA prints have just been failing all together. I assume this is due to the extra heat and humidity in my office, but I have a plan to fix this. I'm going to try out the idea here: http://www.mastersketchup.com/qubd-extruder-jam-fix/ along with some tips from Jetguy over on the makerbot vintage group. I plan to create a barrel as Matt Donley describes, but a bit longer than the standard size. In the gap that'll exist between the hot end and the cold end I plan on lining the thermal barrel with heat sinks. I'm hoping these two modifications will be enough to allow me to print in PLA reliably. First I need to figure out if I want to try to tap a steel tube or if I want to drill out a bolt.

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