D3D v18.07 Data Collection

Benchmarking

Jellybox

D3D here is benchmarked against Jellybox because Jellybox is the leading printer for education workshops, and its print speed is impressive due to the light platform weight. D3D should be able to exceed print speed for large objects, but not for small object (Jellybox may be better at inertial effects for small objects due to its low platform weight whenever objects are not tall and wobbly). Data:

1. 12 of the OSE Motor Pieces for D3D are printed reliably at 300% speed, starting with 100% speed for first layer. Total print time - 10 hours 38 min.

Prusa i3 MK3

Here we benchmark against the Prusa i3 MK3, the most populous printer in the world.

1. See review post - https://www.prusaprinters.org/original-prusa-i3-mk3-2-months/
2. See clone - https://unixb0y.github.io/blog/
3. While Prusa i3 MK3 claims to be open source, I cannot find any hardware files on Github or elsewhere, outside of the 3D printed parts.

Homing

• X and Y home well
• Z moves down and stops. Huh? Never seen this before. Z stop triggered without z probe connected?

• > M119

< Reporting endstop status < x_min: open < y_max: open < z_min: TRIGGERED

• Issue - Z probe - I have LJ18A3-8-Z/BY-5V. Is BX recommended? What is the difference? [1]. See Instructables article.
• Switching the power pins does not allow probe to trigger. Green is the outermost connection - that is assumed signal, middle is ground, red is power. I reversed ground and power
• In configuration.h, I set #define Z_MIN_PROBE_ENDSTOP_INVERTING from false to true. No change in behavior - it is normally closed, not normally open
• Trying #define Z_MIN_ENDSTOP_INVERTING true - changing it to false. It worked.
• I left Z_MIN_PROBE_ENDSTOP_INVERTING at falso - so I changed only 1 thing.