slightly slanted

I am trying to print a case on my prusa i3 printer from folger tech.

However, I am noticing that my case is not quite rectangular but more of a parallelogram. the dimensions are right and its consistant through the entire 117 layer print. but it just looks like someone squished my case i printed. I thought it might be the stl file so i printed the lid for it and it was the same. I ran it through an stl cleaner online and tried that. same thing.

Anyone seen this before?

Edited 1 time(s). Last edit at 07/11/2015 05:24PM by jbrunk.

The chances are that you assembled the printer such that the X and Y axes are not perpendicular.

Edited 1 time(s). Last edit at 07/11/2015 07:34PM by 691175002.

Ill definitely check that. I was thinking maybe it was a setting, but Ill check all the nuts and make sure everything is tightened up

Edited 1 time(s). Last edit at 07/12/2015 12:11PM by jbrunk.

When I built my box frame i3 I got the y axis about 0.7 degrees off square from the X axis. Didn't notice for months until I tried printing something in two halved and they never lined up properly. Correcting the printer would have required building a whole new frame so I wrote a gcode post processor that skewed all the coordinates by the right amount to put the whole thing square again. Being able to tweak the angle by minute fractions of a degree, print and measure was great, I know that the prints are true to within my ability to measure now.

You could use raft like those perforated bed type printers, but you would be wasting some plastics with a benefit of 'theoretically' non-slanted object

An update on my issue. You were right. when i moved the printer i must have jarred the Y access loose. Realigned and its all good now.