So I’ve been using my P1S for a while. I know that the nozzle is supposed to wipe at the back of the bed, but it just seems like that part doesn’t help make the nozzle cleaner if not making it worse. My Bambu PLA Matte is really sticky and the PTFE nozzle wiper isn’t working either. Most of the time the actual wiper does its job but then the bed wiping just ruins it.
I’d take a look and see if the wiper “IS” actually cleaning material off the nozzle, mine was not. It left blobs often on the model. I use a lot of PETG (sticky) My P1S didn’t do a very good job of removing stuck material “wiping”. It’s well known the wiper isn’t very effective on the P1S. I changed it to the A1 style wiper and problem solved. The Nozzle Wiper - X/P Series by Maleko - MakerWorld
ok got it. But the thing is that I need to stop it from ruining the print.
Currently as far as best nozzle wiping solution, I’m noticing the A1’s system is superb… I forsee the X & P series most likely or hopefully swapping to the same method in the future.
Either download a model to add the silicone wiper to the PTFE wiper which is working flawlessly or use a devils wipe mod which uses a wire brush to wipe the nozzle.
I used the devils mod for awhile but even cutting the bristles short, would still ruin my hotend socks which I havent seen anything better than OEM bambu ones honestly.
When I first seen the X1C do the cleaning I really didn’t understand the thought process behind it because the moment it would “clean” i’d see filament leak out… But now with the A1 and watching the sheer speed of the nozzle cleaning and wiping… why didn’t they implement the grill with holes wipe plate onto the X1C’s or P1P’s?? I mean its a better system from what I see at “cleaning” & it’s faster… the thing is full rapid traverse speeds across the silicone & metal grille. At least if they used a mesh pattern metal grille it would get the cleaning done better imo along with the PTFE being a slicone pad of bristles than a piece of cut tubing held in place with a screw…
How? Should I edit the Gcode?
No, just download those models and change the wiping device… the gcode for wiping on the plate is just there. You can at your own will go in and delete that section of course.
I just havent bothered since it just simply does nothing but I should probably go down that path of deleting also.
I also use the A1 wiper mod and it does wonders compared to stock. It is also by @maleko, not the version @user_3490374403 sent here, but an updated one:
V1 was getting broken, V2 was not sitting tight and was lifting sometimes, V3 is the real deal
Hello guys, update on this. I found on Bambu wiki:
So this means that actually it is supposed to get the residue off. But what I observe is that the nozzle wiper does its job really good, but when the nozzle lowers to wipe on the bed, there is a bit of oozed filament that gets flattened and stuck on the side of the nozzle. Then problems get worse as the residue gets worse. Then the purge line can’t reach that blob, and it finally falls off during print, then be carried by the nozzle everywhere. This is really important because the first layer is impacted. Many holes and sizes are then bad.
This seems like a viable solution to this problem to me… I’d love some thoughts on it… One can buy the silicone nozzle wipe brush for the A1 and the A1 mini, its got a sticky back… so… What if one were to buy that, and stick it on the build plate where the nozzle currently wipes into the build plate? Then just adjust this bit of gcode in the printer profile so that it wipes on the silicone brush instead of grinding into the build surface?
G0 X135 Y253 F20000 ; move to exposed steel surface edge
G28 Z P0 T300; home z with low precision,permit 300deg temperature
A YouTuber did a similar mod to the Nozzle Wiper, where you replace it with a printed part they put on Maketworld. You buy the silicone wiper for the A1 and cut it on half and put it on the 3d print.
You don’t have to mess with the G Code.
Yeah, I saw that mod, was considering it… but there’s still the part where, after wiping the nozzle on that wiper, the printer goes and does little circles rubbing the nozzle against the back edge of the build plate (its actually worn a hole through the PEI coating on mine, and Bambu says this is “perfectly normal”)… I’d think putting the A1 silicone piece there would work better than grinding away at the build plate.
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Wiping on the build plate can also increase the nozzle wear. I’d hope that Bambu provides a better solution (i.e. an official installation kit)
I think even small changes to the gcode can improve the problems. The wipe directly after the purging is perfect, but the nozzle just stays there after the wipe and a small bit of filament comes out. Then the nozzle goes through the wiper again (not back and forth). The printer then proceeds on to the wiping on the bed. I think a small update to the gcode can let the nozzle cool down first, then that small bit will break off easily.
Can you provide proof of that? I have a small print farm of X/P printers with thousands of hours on each of them and have yet to see any nozzle wear as a result of the wiping on the build plate…
I think it is common sense that if the coating wears off it means that the nozzle will wear. Scraping off a coating on a plate is extremely hard, showing that there is a lot of force applied.
The nozzle is steel, the plate is PEI. The PEI will destroy before the nozzle.
It’s like when you have sacrificial bearings that are of softer material than the shaft, so you just replace the bearings instead of the shaft and what is attached to the shaft.
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