I have PowerSpec Ultra 3D printer (Flashforge Dreamer clone). I tried to print the engine block but I couldn't do it. I tried Simplify3D and PowerPrint software (that came with my printer). I tried to send the file through USB and save the file on SD card. I ran the file through Netfabb and repaired the file but it didn't find any problems with it. Is it possible that the file is too big for my printer's memory? The engine block came from http://www.thingiverse.com/thing:1911808 I had to cut the engine block in half to fit on my printer. Any suggestion. I was able to print the Toyota 4-cylinder engine block a few months ago.