Tag: Adhesion

Lab Work – TPU Speed and Cycle Times

For this article on the Ender 3 Max Neo Filament, a typical print cycle might run between 2-5 hours, possibly more. While the standard range has been 2-5 hours, we are now looking at 12 – 16 hours. Recently, we have extended the top maximum run times to just under 12 hours for our test models. Surprisingly, both print tests resulted in the a mess.

For the record, a paper towel holder caused this issue twice. Upon initial observation, as the prints moved vertically (up the y-axis), the printing quality deteriorated. Somewhere between the 4″ and 5″ mark, both test prints went awry. 

I’m starting to think there is shaking issue with the table or even a stabilization issue where the printer. is located. Both issues might be addressed by printing the base slices, holder ends, screws, rods, and washers in a single print. These items should be printed separately to attach the towel roll and the rod. The rod that is slung between the holders can be printed in a secondary or tertiary step, This is mitigation issue number one, or we could address the stabilization directly. The printers are currently positioned where they stand, so there is not much I can do to move them around.

Once I received the new filament, we will print the rod. If it works, great. If not, then step two will be more tedious. The issue is mostly a space problem in the office. The filament should arrive later today, and I will post a quick summary once I finish printing the rod slice, assuming it is successful.

Ironically, a similar issue was occurring when I ran TPU through the machine. So we can conclude the Ender 3 Max Neo Filament post with this. Although I don’t think they are related, adhesion was the issue with TPU. Which we will address in a future post once we determine the correct nozzle temps, print speed, and adhesion setup. I have heard/read about using adhesion spray or glue stick. Another day, we will tackle those 3d printer issues/phantom printing phenomenon.