Ender 3 Cura print area fixes

thingiverse

Well, Cura has been upgraded once again, and yet again it's caused chaos for everyone's Ender 3. For some reason, the people at Ultimaker seem to dislike Ender 3 owners making use of their entire printer's printable area. If you look at the image above, you'll see the changes needed to reclaim your Ender 3's printable area from Cura. What do the setting changes do? The first is the print bed size. The print bed on the Ender 3 is actually 235 mm square, but Cura sets this to 220mm square. It appears Ultimaker is trying to prevent the print head from snagging on the bed clips. Personally, I think most people who own a 3D printer are smart enough to position their bed clips as needed, they don't need some software controlling them. I doubt there are many prints out there that take up the entire bed area, so there is usually somewhere to move the bed clips to avoid them getting in the way. Also, the clips don't need to be pushed all the way onto the bed to do their job. If you have a glass Ender 3 bed, then you might appreciate these tiny, low-profile clips that take up hardly any space rather than the chunky bulldog clips that the Ender is supplied with. https://www.amazon.co.uk/sourcingmap-26mmx14mm-Picture-Spring-Hanger/dp/B0747NBBQK/ref=sr_1_9?keywords=photo+frame+clips&qid=1580565160&sr=8-9 The second, and more annoying "feature" of Cura is the position of the purge line that is printed on the left of the bed at the start of each print. For some reason, this is placed 10mm inboard of the print bed edge. When I first got my Ender, and used Creality's own slicer, it made the purge line right on the edge of the bed leaving all the space for the print. Well, the Creality slicer is just a very old version of Cura, with lots of missing features, so I sensibly upgraded to the latest version of Cura and was rather perturbed by the fact it liked printing the purge line quite a bit further to the right of the bed edge. By making changes to the "Start G-code" that runs at the beginning of every print, you can easily move the purge line back over to the edge of the bed where it belongs. Simply change the 4 occurrences of the purge line's x-coordinates to remove 10 millimeters, so the left line moves to 0.1 mm, and the second line to 0.4 mm. Just remember, if you make these changes, the next time you upgrade Cura, these settings will be lost, as well as the BLTouch initialization, if you have one installed.