I have two 3D printers, a CR-10 and a Monoprice Select Mini V2. I bought the CR-10 new, and I bought the Monoprice used, and it came with 2 mostly full rolls of PLA (not stored in bags).
On the weekend I started printing using Monoprice (and the filament that came with it) because I wanted to get it up and running for my kids to use. I printed the feet, the bottoms+tops+locks+spacers. I printed using the % infill from the instructions, the cubic infill pattern with the “draft” profile (.2625 layer height) and 35mm print speed (as per an older “parts” document) at 190 degrees nozzle and 60 degrees bed. I lowered the temperature to 190 degrees to reduce stringing.
However when I take a closer look at the parts that I printed I see little gaps here and there between the layers. I’ve attached two photos.
What might be causing this? I just started printing another part on the Monoprice, but this time using 205 degrees nozzle instead of 190, and so far the part doesn’t seem to have gaps like this, but it isn’t done printing yet.
I’ve switched over to my CR-10 for the rest of the parts, but I have a couple of questions:
- What might be causing this on the Monoprice? Is my guess that it is temperature related correct? (I want to get the Monoprice dialed in for my kids to use; they are 9 and 10 and they aren't going to be troubleshooting any problems that arise)
- Can I use these parts (and replace them *if* they break) or should I just spend the time and reprint all these parts? (It isn't the couple of dollars of plastic that I'm agonizing over, but the time it took to print these parts - now that I've finally starting printing everything I want to keep up the momentum and put it together as soon as possible and get it running.)
- Has anyone tried annealing their PLA parts? Might that help in this case, or would the dimensional changes make the parts not fit correctly?