The top surface is really bumpy. I don't really know why it isn't as smooth as the bottom.
The bottom is usually as smooth as the print bed or in your case as smooth as blue painter tape. The top surface doesn't have a nice flat surface that smooths it out (like a putty knife).
That's actually pretty good so if you are dissapointed, prepare to be dissapointed a lot.
If you look carefully at the infill passes, you can see every other pass has a larger gap. This is classic example of "play" or "backlash". This is easily fixed by tightening belts - usually the short belts to the motors which are also the easiest to tighten. Here's an explanation of backlash which can also cause an issue of not reaching the sides:
Make sure to also look at the photo of the cubes 2 posts earlier than the above link.
As far as bumpy - probably not much you can do about that other than making your parts not-flat on top maybe? For example a pyramid would look better but I assume you don't want to only print pyramids, lol.
You could also look into "laybrick" filament which is bumpy everywhere so it looks the same everywhere so it looks really perfect. I've not tried it - it's still very new.
Link to post
Share on other sites