My printer is rusty

It looks like that printer has been under water to me. At the very least I think it has gotten wet. Was your box water damaged when you got it?

Is it rust.. or is it the factory grease that has gone off due to contamination of some description?

Given where it is, and how the layers appear, and the otherwise apparent complete lack of lubricant to be seen otherwise leads me to believe its not rust at all, but dried/contaminated grease (which will take on that rust/'clay' look when it dries out). It would be extremely unusual for lubricant covered surfaces to 'rust'.

If it cakes off, it is most certainly dried grease.

As for how it happened - I won't hazard a guess - it can occur for many many reasons, environmental, extreme high or low temps, through to contaminants (such as different types of lubricants being mixed, or external contaminants).

To fix it - I feel that all is required is cleaning off the dried grease/lubricant and refreshing it once thoroughly cleaned with a lithium multi-purpose grease..

But I really dont think its 'rust' - but rather just the usual dead lubricant that definitely takes on a 'rust like' appearance...

Have you actually printed anything?

you have to let the extruder to heat up heat barrel for about 195c for 10 minutes. hardened abs in heat barrel will prevent you from pushing anything out(out of nozzle).

And about cleaning printing head... what are you trying to clean? different color? or abs? I leave my filament in the extruder.. if you want to change color.. just heat up, change filament, and extrude until you see the new color.
dryrun is to test xyz motion. it will not print anything.

as for software... some of the setting is very technical.. if you don't know... then you don't know. you are better off with default settings. 
if you hover your mouse on editable field... a tip box will appear and show you what it is for.

Your right RavensCrest, that was a good and simple piece of information. Waiting for 10 minutes after reaching 190 degrees before pushing the hardened abs out was the trick. I assume that “abs” means the plastic material we use to print? My primary language is not English, so abbreviations can make one confused from time to time.

Sorry that my explanation was not fulfilled. Yes, I printed something using the blue color first, and then printed something else using the red color. For some reason strains of both blue and red was left in the heat barrel (hope that is the same as what I called the printing head). Anyhow, that is sorted and a new 6 hours print job is in progress.

I do not think technical stuff is a problem – I am the owner of a software company, but I like to look at technical manuals to see how things are working. Is there are any help for this software?

There are 4 metal rods that is nicely greased where you can see the grease easily. Then there are the two rods in the back of the cage plus the long screw that moves the bed up and down. These items do not have any grease at all.
I will see if I can get hold of some grease tomorrow and manually grease up these parts. Hopefully it will help, but just surprised that the printer came like this.

Thanks for very good feedback RavensCrest

Regards Stein

Thanks for your comment Downeasta, nut nope, there is no salt water around this place. I have an office full of IT hardware, so the air has to be dry. And as I said - 3 out of 7 rods are rusted. The other four is greased up nicely.

Today I had to remove the cover from the cage and noticed that there should have been 2 screws in the back, but only one was assembled. This is now obviously to me that the assembly line has failed on this printer.  Im truly unhappy today.

+1 on contacting solidoodle.

I am curious about the rods under the bed... are they also rusty down to the bottom of the cage?

To ronsii; The two outer rods in the back of the cage is only rusted part of the way. It seems that its rusted where the bed have covered the rods. Almost the Whole screew is rusted and its making a load noise every time the bed is moved up or down.

Thank you for your reply. One additional question. Should the two vertical rods in the back of the cage and the long vertical screw normally be greased like the 4 horizontal rods?

I understand. As shown on the pictures, there are no grease on these three items. What do you suggest I should do?

wow that is nuts I have a tiny bit of rust forming but wow...

All the stock bearings are bronze(oilite) bushings, no ball/linear bearings.