Print Larger (22%) than STL Model with Scale set to 1.00

[cleven 4]

Just got a new computer, added Cura, Updated the firm ware. Created a model printed the model, and noticed that it was around 1.2375% larger than the STL. In cura it is stating the correct major OD which is 80mm but it is printing much larger.

I have not added any scaling.

Currently running the newest Cura with the newest firmware.

This also occurred with the newer cura and the older firmware. (I updated the firmware since I thought this may fix said problem). STL created with Solidworks 2015.

The next could be something with the STL, but as in cura it is stating the correct size so I am unsure what could have all of a sudden started causing this problem.

It maybe something simple, instead of me playing around for a few hours I will ask here in the hopes someone else had something similar.

Any ideas??

 

[Daid 306]

Something could be wrong with the firmware settings (which are not reset on a new firmware install). Specificly the X/Y steps per mm.

You could try a "reset to factory defaults" on your UM2. To see if that solves the issue.

 

[tommyph1208 55]

Also,why not print a calibration cube (eg. 1x1x1 cm), to rule out the model/stl cause... It will also be useful in terms of checking steps/mm.

[cleven 4]

I ended up doing just that right after I wrote the post. I wasn't able to do a test print until today but the print was a success!

Fixed

 

Something could be wrong with the firmware settings (which are not reset on a new firmware install). Specificly the X/Y steps per mm.

 

You could try a "reset to factory defaults" on your UM2. To see if that solves the issue.