Ender 3 Max & CR6 SE

General Discussion
1

Hi All,

I’ve been working on Klippering my Creality Ender 3 Max & CR6 SE machines & now fully working with Mainsail on a Pi4 & Zero 2 W (I’m now a full converted fan of Klipper!). I was just wondering if anyone had any idea on the reliable speeds I could theoretically reach? I’m not looking for a 5 min benchy but quicker prints would be nice.

Ender 3 Max
BigTree Tech SKR Mini E3 V3 mainboard.
BigTree Tech H2 original extruder & plated copper nozzle.
5010 blower part fan.
BLTouch v3.1.

CR6 SE
BigTree Tech SKR CR6 mainboard.
Prima Creator all metal hotend conversion.

Thanks
James

2

The limiting factor for your printer speed typically is not the firmware. It is true that Klipper can achieve higher step rates than other firmware and also with a greater microstep resolution: Unfortunately being able to shift faster does not turn a Fiat into a Ferrari (also not adding a racing exhaust)

Your printing speed and quality is mainly determined by:

  • Stiffness of your frame
  • Squareness and general mechanical layout of your frame and all the kinematic / moving parts
  • Precision of your linear systems
  • Max torque of your steppers
  • Maximum flow-rate your extrusion system can reliably sustain, i.e. extruder, nozzle diameter etc.
  • Typically acceleration has a bigger impact than velocity

So the values given in the config files for these printer are sane defaults. Everything else is up for experiments.

3

Thanks Sineos,

Interesting, I’ll carry on playing with the machines & I appreciate the analogy .

I have a feeling now I’ve been introduced to klipper I may find myself building my own Voron or similar build at a future date.

Kind Regards
James.