Craftsman CMZST120SC String Trimmer Replacement Spool Cap

Update 9/6: Found the sweet spot for printing this at an angle. I have added a new 3mf file with the exact orientation i printed at. Bambu Slicer gives a angle of 59 degrees for the Y axis. I also changed to glass infused ABS and it has taken some serious licks. I live on a hill and it is very rocky so its getting a good test here. I also suck at weed eating so i hit a lot of stuff. 

Update 6/4: Highly recommend figuring out how to print this at a 45. The flat one broke pretty easily, the ears came off with the first accidental impact with the curb. The other one, other than not wanting to feed because of the ruff surface has held up well with more than a few impacts harder than the one that broke the flat part. Happy Printing!

Update 5/21: Used the weedeater the other day and did run into issues. The surface under the cap does need to be smooth so my print that has a bad finish does not work well. I had no issues with the print where the inside is smooth. The rough under surface does not let the spool advance sometimes as the line gets stuck against the rough spot. Make sure that is smooth when you print otherwise you will have to remove the cap while weedeating to free it. 

I created this model for a replacement spool cap for Craftsman electric weed eater. You can get these fairly easily but this was good practice of design and id prefer not to give my money to the overlords when i can. I felt the design of the original was pretty good, except for where material was thinned out.  This should fit this list of trimmers : CMCST900, CMCST910, CMESTA900, CMESTE920, CMCST930 and CMCST98020. It probably fits more trimmers but i couldn't say. The face diameter of this on is 86mm. 

Printing has not gone as well as i hoped with ABS, i got lots of stringing and a poor finish twice but both prints are fully functional, just ugly, like me. I printed with ABS at 100% infill,  .16 layer lines first time and .2 second time on ABS. I printed the first on at a 45 degree for strength and the second one flat to see if that helped quality. My test PLA prints were perfect. The snap in just like they should on the original. I have not used them yet so i do not know their life span, hopefully longer than the original