Kingroon KP3S Pro S1 Bed Spacer

I recently picked up the KP3S Pro S1 from SliceWorx. Luckily, it came with the magnetic sticker/PEI sheet upgrade. After ditching the glass bed and applying the magnetic sticker, I was a bit disappointed with the 'fitment.' I found the z-offset screw needed to be bottomed out to just barely work with the stock bed springs and that left the bed pretty floppy. Also, bottoming out the z-offset adjustment comes pretty close to letting the guide slip off the bottom of the z linear rail...

Wanting to continue some of the rigidity of the rest of the printer, I swapped out the springs for silicone spacers. I went with the more standard 0.7" tall spacers that litter Amazon... These work out to about the same height as before with the springs.

Adding these ~5mm spacers to the 0.7" silicone spacers lets you compress the silicon for a more rigid bed, gives you some wiggle room on the z-offset adjustment and gets the bed high enough the linear rail has some safety margin. Z-volume is preserved to at least 200mm.

Disclaimer: I didn't read any instructions, look up videos on swapping out the glass for the magnet, etc.. I just didn't like everything being on edge. So far, I like this much better than the stock springs.

I went with PETG for this print because that's what I testing on the printer. PLA/+ is probably OK, but considering proximity to the heated bed... Go with plenty of infill so that things don't get crushed under compression.

Enjoy!

As a side note, I'm really enjoying this printer so far. The only big weakness (I find) is the PTFE-lined hot-end. Other than that, it's making some very nice prints and is the cheapest printer I own.