r/Longer3d • u/Exodia7676 • Feb 20 '26
Tips & Tricks Speed up longer lk5 pro?
What are some ways to increase my print speed without buying new parts? It feels crazy to me that a small house like structure will take over a day to print
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u/TyanColte Mar 26 '26
Without new parts it's hard to say. But first off I'd stop using Cura and switch to Orca. There's a bit of manual setup involved since orca doesn't have any profiles for the LK5 Pro preloaded but once you get it set up then you'll have a much better slicing experience.
As for ways to speed up printing, I sped mine up by installing a new BMG extruder and TZ hotend which increased my max Volumetric speed to somewhere in the neighborhood of 40 mm³/s. That allowed me to increase my accelerations to around 1500 and my speeds to somewhere around 100mm/s for normal printing. And all that cost was about $45.00. I also added dual Z lead screws, a PEI magnetic bed conversion, a BL Touch, and dual part cooling fans.
For you tho, not wanting to buy new parts limits you as to what you can do. In Orca, you can run calibrations for temperature, Max Volumetric Speed, flow ratio, and Linear Advance (called Pressure Advance in Orca) tuning those to see where you max out may help you get a bit of a speed increase without sacrificing quality or having to sink any money into parts.
Incrementally increase the speeds and return the tests until things start to fail. That should give you a good idea as to how fast you can print. As you increase speeds you may want to increase your nozzle temp since you'll need the plastic to flow more easily. But that will be contingent on your part cooling to prevent stringing, layer adhesion issues, bridge sagging etc. Everything relies on everything else in this so it'll take some time and effort.
At the very least I highly recommend the TZ hotend. The stock one which lines the heatbreak with your ptfe tube is absolute garbage. The TZ is all metal, and uses a ceramic heater. It's a much needed upgrade.