Mine was, has been for awhile. Little problems here and there, printing was ok, but great prints were becoming less and less frequent. Less energy, not as into giving me great prints.
It turns out I was not listening and it was feeling neglected and unhappy with how things were.
It needed some adjustment and the friction was making it unhappy.
So I decided to sit down and look closely at it.
Here is what I found. You owe it to your relationship with your printer as well to see if the friction is causing it to losing the love feeling for you.
I had adjusted my belts a few weeks ago and gave my carriages a quickm tighten also. This was the begining of the problem.
Here is a pic that shows what my printer was saying to me.
[img]http://i.imgur.com/32xGNhD.jpg[/img]
See the marks along the aluminium, these were caused by the backside of the belt clamp hex nuts rubbing along the extrusion during movements.
It got to the point that I heard an ever so slight noise during prints. This was my printer yelling at me. After tightening the hex nuts properly and pulling in the backside by doing so my printer no longer had this added friction on 2 of the three towers. This caused inconsistent results at different print heights.
As you can see by the chip in the wood carriage it has been a rocky love affair. No I didn't hit her! She fell! Really!
But we now love each other again.
All 3 of the carriages should move freely and smoothly, but more importantly all three should have the same amount of free movement without friction. Belts should be tightened snug but not so tight they cause friction. Give your printer a quick check by going into repetier, hitting the all motors off button and very slowly (moving things too quickly can cause backfeeeding of voltage and blow your rambo) move each criaage and look for sloppyness, loose issues and friction.
I love you printer!
No really she fell, I would never abuse my printer!
