Ender 3 pro - 14 minute benchy

My #speedboatrace benchy - 14 minutes, basically stock Ender 3 pro.
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updated May 4, 2023

Description

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My curious attempt on speedboatrace 3DBenchy - 14 minutes 10 seconds - the white Benchy.

It is printed on my slightly modded Ender 3 pro but all the mods are basicaly not affecting the performace (except cooling which you could easily update too) so this should be obtainable on completely stock Ender 3 pro as well.

I am uploading my fastest profile as 3mf file with all the settings so you can test yourself but at first change to your printer (have a look at my accelerations) as I have KlackEnder with custom start gcode.

Also I give you a 3mf file for 22 minute Benchy with descent quality settings for fast printing that I came with after finding the fastest Benchy - there is ringing of course as I don't have input shaping but it is good for fast draft prints.

If you print your Benchy and see some issues unknown to you, you can upload a photo here in the prints and ask me - I will try to do my best to recognise the potential issue.

 

CONCLUSION

This is definitely not a speed record and the stock hotend was really having problems to keep up but I was curious what can be done with my setup and I was actually expecting much worse result - this was the minimum time I could get with the setup and Marlin - any more acceleration or speed was getting me shifted layers. It has greatly helped me to know the limits of the machine thanks to which I have made some better faster slicer profiles and helped me adress few issues on my printer.

PRINTER SETUP

  • Stock stepper motors for X, Y and Z axis.
  • Stock 8-bit board running Marlin 2.1.2 with linear advance.
  • Stock hotend with stock heater cartridge, only changed to cheap bimetal heatbreak.
  • Stock VREF settings.
  • 0,4 mm standard brass nozzle.

 

PRINT SETUP

  • 8000 mm/s2 acceleration on X axis (without direct drive you can go even higher)
  • 3250 mm/s2 acceleration on Y axis (with lighter print surface can be higher)
  • 2000 mm/s2 acceleration on Z axis
  • 5000 mm/s2 acceleration on Extruder
  •  
  • 100 mm/s first layer speed
  • 230 mm/s print speed overall
  •  
  • 0mm z-hop
  • 0mm Retraction
  • 230 °C white Aurapol PLA

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Model origin

The author remixed this model.

#3DBenchy
www.3dbenchy.com

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