Quote Originally Posted by curious aardvark View Post
I wipe down all the rods with a very light lithium grease, that also gets the dirt off.
Not as often as I should ;-)
I tend to wait till it starts squeaking.
Apparently a good gun oil is very good.
This was why I posted this CA.
I've been running my printer a LOT the last week and just last night it started making a new noise.
To my ear, it sounds like the reverb type noise you would hear as the "dry" plastic guide tube is sliding over the "dry" steel rod.

It only seems to do it when the print head is far over to the left, headed back right. I was trying to watch it to attempt to figure out which motion
was involved but found that to be not so easy.

So, I "lightly" oiled the two left/right rods and the two front/rear rods with Tri-Flow PTFE Teflon lubricant....but it didn't stop the noise.

So I guess I'll just lubricate ALL the moving parts I can this morning before I fire it back up. Hopefully it's not a motor.

The good thing is it has a warranty (if that became necessary) and MonoPrice support has been stellar.

Then again, this may be "normal".