What in the is causing this noise

itisnot_me

https://photos.app.goo.gl/4yxqPbbv9nFYgw8r7

I lube the rails but it doesn't seem to help/fix

Samuel Pinches

It is difficult because that video shows both x and y movements simultaneously. Maybe try some manual moves with one axis at a time. Could be the cheap bearings (you can get a replacement set of higher quality bearings here) or it could be the cables inside the chassis rubbing on things as the bed moves. Hard to say with that video alone.

itisnot_me

I made sure all cables are tied down when i switched to new steppers. I believe its the X axis (print head). 

I think there might be slight layer shifts because of it. Do you know if there are faster delivery option ones for the set? 

Samuel Pinches

I'm not sure sorry. I think you would need to contact them to ask. It's likely, probably around an extra +$35USD for express delivery.

itisnot_me

what size is needed for the X axis? might have to get some on amazon in the mean time. Also what lube is needed. I got a PTFE one but some got on the head and it smoked

Samuel Pinches

PTFE lube is best - I wrote an article on 3D printer lubrication here. No lubricant should get on the head...?

X axis uses 1x LM8UU and 1x LM8LUU but those are all crummy cheap bearings. Might be worth buying a larger pack so you can pick the best 1 of each size.

itisnot_me

what are Solid Polymer bearings? Are they something that is good? From pictures they dont look like they have balls.

Samuel Pinches

They use a plastic, which has a lubricant mixed inside the material. As the plastic wears away, the lubricant is released. They have a reasonably good lifespan, it is not like they wear out very quickly. But, they don't work well on smooth rods. They need a surface that is not perfectly smooth, so that the lubricant can be released.

itisnot_me

just incase which ones and how many move the bed

Samuel Pinches

Y axis uses 4x LM10UU.

Auswanderer

Toooo much noise from A5 ?

only remove the metal plate with "3D Printer" (only 2 screws) and it is less noise.

itisnot_me

i was thinking, after i purchased the bearings, that it might also be the problem. 

itisnot_me

@Auswanderer @Samuel Pinches
The protection plate was the problem. I have it running and am not hearing that grinding. Not sure why the metal plate warped to be grinding on the head.

This is of course after i ordered the bearings. Oh well i guess i will update them in the near future to be safe anyways