My 6 input mixing hot end – part 6.

1. Introduction. This is just a progress update on the new gantries that I talked about in part 5 and my latest hot end design revisions. As far as the hot end itself is concerned, I’ve had a fairly major set back which I will talk about later. 2. The new extruder gantry. In part […]

My 6 Input Mixing Hot End – Part 5

1. Introduction Further to my last post (part 4) this is just a quick update on my findings with regard to the leakage, my first attempt at a fix, and some other thoughts and observations. 2. Removing filament Having discovered a filament leakage problem, I had to remove the hot end assembly from the printer. […]

My 6 input mixing hot end – part 4

1. Introduction Further to my last post (part 3), I have designed some test parts to highlight the “stripey toothpaste” effect and printed these using the Diamond hot end. I’ve also managed to re-configure the extruders on my machine, fit the new hot end, load and flush through some filament and attempt my first print. […]

Mixing hot end extruder micro-stepping revisited

Note. This post is about extruder micro-stepping when using a mixing hot end. None of the findings would be applicable to non-mixing, single filament input hot ends. Introduction Some time ago I posted my thoughts on why I believed that 16x micro-stepping was not a good setting to use with a mixing hot end. The […]