Resonating bed  

RE: Resonating bed

Posted by: @johann

Hi i have this problem... i alraedy took the headed bed off.. and it has still play on the barring i think it needs replacement or is this normal?

see movie

IMG_9226

What kind of play do you have in bearings?  Which Bearings?  

RE: Resonating bed

Posted by: @johann

Hi i have this problem... i alraedy took the headed bed off.. and it has still play on the barring i think it needs replacement or is this normal?

see movie

IMG_9226

- Linear bearing U-bolt screws not tightened enough
- defective linear bearings

- too much backlash on the linear rods

RE: Resonating bed

@cwbullet

OEM barrings from Prusa, Printer is 1 week old and noise is getting more.. as more i print.. i will get the bed of and see how much play it is..

thanks

RE: Resonating bed

Posted by: @karl-herbert

Posted by: @johann

Hi i have this problem... i alraedy took the headed bed off.. and it has still play on the barring i think it needs replacement or is this normal?

see movie

IMG_9226

 

- too much backlash on the linear rods

- Linear bearing U-bolt screws not tightened enough

checked and tight

- defective linear bearings

Iam thinking that

- too much backlash on the linear rods

also tight and no movement

RE: Resonating bed

@johann

- Linear bearing U-bolt screws not tightened enough

checked and tight

Take care, if they are too tight they will damage the bearings.  They should be *just* tight and then a quarter turn more.

Cheerio,

RE: Resonating bed

Posted by: @karl-herbert

Posted by: @johann

Hi i have this problem... i alraedy took the headed bed off.. and it has still play on the barring i think it needs replacement or is this normal?

see movie

IMG_9226

- Linear bearing U-bolt screws not tightened enough
- defective linear bearings

- too much backlash on the linear rods

I agree with Karl and the others.  That will create all of the problems as you describe them.  Keep us up-to-date.  

RE: Resonating bed

If that printer is a week old it is a MK3s+. That doesn't have the u-bolts but the news bearing clips. The instructions are different than for the u-bolts. The bearing clips should be fully tightened. (with normal force, these are just m3 bolts)