Layer Shift: Volume and Velocity Editions

thingiverse

I always promised I'd get back to this, so here I am with two new versions. I'll say up front...no, the left arm is not much smaller on either of them; if you struggled to fit the original Layer Shift Mk 2, sorry, you'll struggle with this too (though it can be done, it fits on mine after all...) The original Layer Shift was designed to deliver a high volume of high speed air to the print area. But the question is...which is more important, air volume or air velocity? Step one in this remix was to use my (slightly) better knowledge of modelling to optimise the airflow - smooth out the curves and deliver as close as possible to 50% of the available air to each side of the print, including a tighter "split" where the air streams pass each other. With that done - the "volume" edition delivers almost the same cross sectional area at the two outlets, whereas the "velocity" edition reduces the outlet cx area by one third compared to "volume". I do not know as yet which (if any) is better...I thought you kind people might like to help me find out? If there are no particular problems with "velocity", then this will inform future developments which DO include reducing the big left arm. I can print these tolerably well on their "back" without any supports; in that position the bridging the printer has to do is minimal; I get some "looping", but it only affects aesthetics, not performance. Note: at time of writing I have successfully printed "Volume" edition, but "Velocity" is still on the plate - proceed at your own risk!