I am 3d printing (PLA) through the STL parts list. The extruder is 0.4mm. Would appreciate any feedback that corrects this. The lower belt pieces have blockage in the same location. 1) dremel it out, 2) try different Slic3r settings 3) go to a smaller nozzle. So far, the other parts have been produced very well. This little tight spot has a glob near the oval anchor post. The regular and mirrored pieces all show the same fault.
I’m no expert but when I had blobs in small details like that on a PLA part I reprinted at a lower temperature and the fine details were more clearly printed.
I used a 0.4 nozzle but Curia as my slicer…
Those parts are quick to see if different settings or slicer yield a better result with your printer and brand of PLA.
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How old is the noodle? I printed with a 0.5 and things were good. A few weeks later I was printing something else and running into issues. Put a new 0.5 in an all was good.
I agree with @rvf, based on the overall top finish look and globbing happening I would say to high of a temp… these are pretty small pieces and 3d printer setting depend a bit on scale. So when your printing somthing small the printer usually moves a bit slower and it doesn’t give the plastic much time to cool. Small parts also don’t require the print head to move away from the part witch keeps them from cooling as well as larger parts. I would make sure your part cooling fan is going at high speed and lower your extrusion temp by about 10 degrees © and try it again.
Update: My project was on hold due to other pursuits. I tried the advice above. I got a better print with a new, 0.3mm nozzle but alas the belt will not squeeze into the oval-shaped loop. I ended up drilling out the oval and inserting a small piece of brazing rod (like a snip of coat-hanger wire). This jams the belt inside sufficiently. The upper belt jams came out cleaner but still the belt just won’t squeeze in there.
Another thing, all the belt jams were too tight to fit in the corners. I made some fine rasps to the sides until each one fit. I assembled the captured 5mm nuts & screws and verified their operation.
Thanks to all of you for the advice.
I have a solution. I printed the whole Primo project with a .8mm nozzle and, of course, I had to do a little sanding and drilling to get things to fit but no major issue until I reached the belt holders. I saw here and on You Tube that people were having trouble even with .4mm nozzles so I just milled the center post out with a 1/4 inch mill (A Forstner bit would work also) and then jammed the loop of the belt open with a 1/4 inch metal dowel, 8mm long. Wood would work also I bet. It is much easier to get the belts back out also if I have to make an adjustment
