Deceleration is just negative acceleration, it's calculated the same way.[/quote] Change in velocity over time with polarity of the quotient establishing direction (accel or deccel); completely agree. But, its the deceleration event that sets up the oscillation that causes the waves. The waves are n...

In thinking more about it, I believe the problem is caused by deceleration rather than acceleration. Both of these suggestions should help. Thanks for the feedback.

I have noticed on most prints, especial those with 90° corners, waves form at the corner. The displacement direction is perpendicular to the plane of the given surface and the amplitude diminishes in a linear fashion as the distance from the corner increases. This looks very much like classic resona...

Anyone have any experience printing PEI filament? I have had prototype parts printed by third party vendors on a few projects at the office but have none heard or read much about in the Maker community. High strength, excellent solvent resistance and exceptionally high working temperature. Its very ...

Installed...

Finally, after three years, I got around to designing/printing a bed stop for parking the Z-axis. Snaps into place, no fasteners required. The hoop section functions as a spring and support. Can work successfully with PETG or Taulman 910. Photo and STL attached.

Thickness is 0.03" ( https://www.amazon.com/gp/product/B0013 ... UTF8&psc=1 )

I have started printing with Taulman Alloy 910 and am pleased with the results. Good bed adhesion with glue stick on PEI, 45°C temp. Extruding at 260°C with a 0.35mm nozzle, V3. Printing at 50mm/sec. Inter-layer adhesion is exceptional and I have not encountered any warping. I am printing at 0.2mm l...

Taulman Alloy 910 has a rated working temperature of 200°F ( http://taulman3d.com/910-features.html ) which should hold up well to summertime outdoor heat. It prints much like PETG, has exceptional inter-layer and tensile strength. Ideal for brackets that use mechanical fasteners, etc.

I am impressed with Taulman's Alloy 910. Bed adhesion is excellent; PEI with PVA glue stick, 45°C bed temp. Prints are clean, minimal stringing, virtually no start/stop discontinuities. Printing at 260°C extruder temp with a V3; be advised I have checked my extruder temp with a thermocouple inserted...