More and better LEDs in the core one...  

RE: More and better LEDs in the core one...

But I just solved this problem...This constant knocking is caused by uneven tension of the belts on both sides

Nice "in other words" for the manual 🙂 

I'd like to add to this sentence: are you sure, that your belts now have the same Hz? When my belts are both at 85 Hz, the end-stops aren't synchronous. 

So when I'm doing it like you're describing, I end up with my currently used tensions of 81/86 Hz. The homing is, as you say, fast and only knocks about 5x. 

Btw: I'm wondering that I can already find lots of mods like dust protection for the bottom, but no dust filter for the top intake and no "silence" mod for the homing. 

I'll have a go with 1-3 layers of 95A TPU on the end-stops and report back in a few days. Since not all of the print bed area is used, it shouldn't matter if it's 100% precise?

It just needs to home well. 

RE: More and better LEDs in the core one...

Posted by: @tomtim

Hi Sembazuru, 

yes, 24V to connect with a fuse to the powerboard 🙂 We make the same with our set if it is delivered 🙂 

I think either you or I misunderstand. By "powerboard" do you mean the extension board mounted above the xBuddy in the enclosure, the power input connections on the bottom of the xBuddy, or the power output connections of the power supply?

My thought was to desolder the original Prusa white LED strip from the cable, and attach the cable to a new white COB strip. This would then plug into the LED connector on the extension board. I was wondering what the LED drive voltage at that connector is.

I finally broke down and found the schematic and verified that both the white LED and the RGBW LED strips are driven by 24V (from the red extension wires). I haven't looked, but I wonder if there are RGBW COB LED strips on the market that have individual R, G, B, and W lines (instead of a single data line)...

RE: More and better LEDs in the core one...

@Sembazuru: tomtim connected the LED to the PSU !

As far as I know, COB LEDs are only available in white, but in various color temperatures and in 12V and 24V.

If you replace the original LED strips with COBs and use the original connector (as I intend to do), You shouldn't draw significantly more power than the original LEDs.

The photo shows the COB LEDs available, for example, from LED-Konzept.de.

Thanks for the schematics ! Vary interesting. Are there schematics of the whole thing also ?

Regards

RE: More and better LEDs in the core one...

Sorry, I have to contradict myself! 🤔 

Unfortunately, my previous post can't be deleted, hence this correction!

Further research has revealed that COB LED strips are indeed available in RGB. (See attachment)

RE:

Posted by: @mercur12

[...]

Thanks for the schematics ! Vary interesting. Are there schematics of the whole thing also ?

I don't know of a full unit wiring diagram, but there are schematics of the individual boards. I use this page as a reference to find Prusa schematics (instead of surfing through all the Prusa GitHub repositories):

https://www.prusa3d.com/page/open-source-at-prusa-research_236812/