What about wd40 ptfe spray?
I’d be inclined to avoid wd40 ptfe. It’s not safe for some types of plastics and the spray action of wd40 tends to make a mess. As others have mentioned Super Lube is a good choice, but I’m sure there are others. I went with Super Lube because it’s safe enough to be rated for incidental food contact and it comes in a squeeze bottle for better control during application.
You want a light weight lube. You don’t need a high temp lube.
The quality of the lubricant can affect how smoothly the ball screw moves. Too viscous, the ball will “stick slip” and move unevenly. Too thin, the bearing doesn’t get enough lubrication and a similar phenomenon can occur. Too much grease, even if it’s the right kind, can also be a problem. The stepper motor steps but the ball doesn’t move because of “sticktion”, or it doesn’t move the full distance it’s supposed to. Next step puts additional strain in the system to overcome the “sticktion” and it jumps to the new position.
On the scales of the distances moved for one step on the stepper motor, it doesn’t take a lot to interfere with its smooth operation.
Strange that Bambu doesn‘t offer the lubricant that came with the printer in their store.
Howdy again mates,
This thread sure come back to haunt me with a vengeance!!!
I bit the proverbial bullet and ordered my second X1CC and you guessed it mates,
now I get an error message during setup about the unpacked printer needs lubing!!!
I need you expert advice mates,
it has got to be lubed out of the box - it should be good to go when you unpack it, does it not?!?
Does this mean it is a dud/broken something severly wrong?
I really really need your expert feedback/advice mates…
May the force be with you,
/Silverbullit
Mine spit out a warning on its initial power up/calibration. I just ran the Z-axis up and down a few times and tried again and the problem went away and hasn’t come back.
Probably be a good idea to verify the screws actually have lubricant on them before you do this, though.
I came here to say the same thing. I have thought Bambu offers a lot of replacement parts on their store and all at pretty reasonable prices. I’m really shocked they don’t offer a little container of the lead screw grease and instead only provide a link in their online manual for an obscure industrial product that no one knows how to source. Otherwise, if we don’t need to be that picky, perhaps they could give a handful of options we’re more likely to find at a local hardware store.
Humm… I just used the same grease we use on the M249. Works from -85 to +1250, contains no oils, petroleum distillates or PTFE type ingredients, prevents buildup of carbon, copper, lead, and plastic.
Seemed like a good fit, time will tell
Try calibrating it first, I got the same message out of the box also. I looked at the screws and they all looked lubed good so I calibrated thinking the bed might be a little off, haven’t had the message since.
I am trying to provide amazon link but the forum won’t let me
At amazon type in Super Lube 3 pack and it will be one of the first results you see that includes a nozzle.
I can’t say one way or the other, never used dry PTFE on a ball screw. But there are greases specifically intended for this use. Those are the ones I use… I’m using the same grease I use for the screw assembly in my Form3 printer, which operates at much smaller step sizes than our BBL printer.
thanks for info, yea better to get some grease, i couldnt buy today, so i bought that one, on Monday i will buy grease, today i will just use that small sample i got with printer
Rather than everyone guessing or saying things like “I like to use ”, can’t BambuLab recommend anything besides BX-300/F? BX-300/F seems to be unobtainium, so recommending only it seems rather disingenuous.
Meanwhile, is the “lubricant grease” sachet that came with the X1C the illusive BX-300/F or is it something else?
Lastly, how does the printer determine that it’s time for me to lubricate the z-axis? For instance, is it based on higher than normal current draws when the X1C moves the z-axis, or is the firmware simply noticing that 3 months has passed and therefore it’s time to do preventative maintenance?
Yeah I agree i had to check the site as I thought I saw it, but its not there LOL. I am looking into superlube grease to see which matches closest. I think I might make a ticket and ask them. Or contact company they send a link and ask them who retails there grease.
Yeah agree they need let us know.
I have only had my printer about a month and it let me know, but I had a large order that took nearly 500 hours to print. a print a couple days later after I got it off I went to home the machine and it popped up while homing 
. So I am wondering if it is a high usage thing or if it has a sensor to feel the movement being uneven as it goes up and down. It did it after a long homing.
Has anyone used the grease Prusa sells? Should work, shouldn’t it?
This! I ordered some scraper blades just to find there was one included in there. Luckily that one mistake made me look through it in detail so I found the lubricant grease.
But yeah, now that I’ve used it up, I too am wondering which one to buy as Bambus recommendation isn’t available in Germany. I’ll probably just use the “Nigrin Maschinen Allzweck Fett” as I have good experience with that in various others machines. It’s not considered food safe though, but I probably won’t lick the lead screws anytime soon.
its a default message that can happen. Just check the screws and look if they got a white grease on them. make sure follow instructions and get all screws out before you turn it on lol. Like Rocket sled said if you see it has grease it may need ran up down a couple times.
Prusa lead screws aren’t lubricated. The nuts are made of delrin and are self lubricating. This is what Bambu should have used.