Change Log of the KINGROON KP3S Pro V2 Klipper 3D Printer

Greetings Kingroon,

This has become one of my favorite printers, more than the Creality K1 & the Voron models I have built! I just love the size(beautifully compact cantilever design), and this is a mighty match for the Bambu A1 Mini for those who know how to tinker with a printer, and with open source freedom to match. This is not a printer for a first time 3d printer enthusiast(and you should warn them this is for advanced users), but one that has at least 1 year experience as some of the features requires a bit of knowledge. I have to say that your engineers and constant evolution have made a very competitive product, and you should be proud to deliver such a quality product at this price point, to build an equivalent system would be more than the cost you are selling it.

What I respect the most is your team invested funds in the performance of the product, and left some room with the community to evolve examples: Canbus capable Mainboard w/ WiFi with Klipper, linear rails on all axis, ceramic hot end, ADXL, Canbus wiring, front display, and extruder improvements. Based on what is available in the community, and my own slicer evolutions, I have so far made few minor tweaks and it prints are near Bambu level prints. It has excellent first layer adhesion, and very little ringing artifacts. (Feel free to reach out if you want a decent PETG, and PLA profile for Orca slicer for good quality very fast prints, i think i found the right balance if you want to test and include for future customers). I think you really have one of the best small form factor printers on the market and appreciate the constant improvement by your team! These things are amazing as they take very little space and give you most of big boy 3d printer experience.
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Here are some considerations for your future revisions:

Here’s some things I love- Pressure advance test for PLA included! this is fantastic for first time users – please consider including a pressure advance file for PETG, TPU, and ABS on the USB. The pressure advance file is essential for customer satisfaction in first prints.

Love the first time level & Input shaper test right on the display, and rotary encoder. Very easy to get amazing prints after those basic tests. Consider making a klipper script that combines a first time user, self test of printer and allows both features to combine, i believe creality does this with the K.1

Works amazing with any USB camera in klipper web interface with no additional work required. Please allow way to update klipper and fluidd as it seems not to be set up for updates. Please include a way to see bed level mesh, which is currently missing after running auto bed leveling, the bed mesh page is blank… and other customers seem to report this with a the latest 2024 printers.

Very easy print head to dissemble, your team did an amazing job making a very compact print head… Consider allowing customers cad or STL drawings of the cover, so it can be modified, maybe even allow customers to make voron KP3Spro hot end face-plates with onboard lighting… Maybe allow customers to add their own LED lights to tool head, this may require can-bus mod.

Filament holder is a great location, consider making the spool modification or providing a larger adapter STL to remove resonance of shaking printer filaments during input shaping and prints.

The 9:1 extruder is very capable and compact, but tends to shave filament and route filament often directly into hot end fan during filament change outs. Please consider a way to access extruder without taking part of rails. Improve filament path to prevent filament from being shaved by sharp edge filament guides. This could be a problem for those with limited printer experience.

The Hot end fan is leads to poor print quality in rear of printer, so it is better to replace with somethign with more side airflow, there are several online fan duct replacements, and they work excellent in improving print quality.

Consider including STL and presliced files in the provided USB drive of your favorite printed mods for the printer such as wire guards, fan ducts, camera holder, trim or faceplate accessories.

The front screen display is functional and excellent in it’s utilization, but is not very pretty, please give us STL and cad drawings so customers can improve and beautify it. Next revision should make front display holder a little more decorative.

Allow customers or sell upgrade paths like they due with sports cars – stage 1, stage 2 – For example stage 1 could include hardened nozzles, filament sensor and a camera. Stage 2 could include led light kits for print head, and a new LCD klipper screen with faceplate. Stage 3 could include an eddy probe?

Ask customers to provide you the best printer profiles so you can provide both cura and orcaslicer profiles with the printer USB. the Cura files are OK, but my orca slicer is much better. You should share these on your website, and include latest on the USB.

Ever think about showing a tutorial for Octoeverywhere, or something equivalent… good stuff to include for those that want web access.

Feel free to reach out and would love to review or provide feedback on your future improvements. Thank you for your time!

J.