DOWNLOAD LINK BROKEN
if download link is broken i added a zip file with all the files in it so u can manually download it from the list of parts without having to get each file individually

NOTE*** i recommend printing the v2 or highest version of files if there is one for it.

i did not make all the parts in the upload, this is the one i used most an also the one in this upload so i wanted to share the original https://www.thingiverse.com/thing:3020026
even for the parts that i did make they was modeled after the original or was part of the original file that was altered.

i have used this style of spool holder on pretty much all my printers. it was always an easy thing to pull off for most of them but for the flsun qq-s pros i have both had the same type of mount, metal arm that mounts to the top of the printer with a smaller arm that u bolt to the first an this is what holds the filament spool. it works but if u have a bigger spool it doesn't go through to catch it so it could fall off. i found a few options to get this style on my first flsun an they all required replacing everything with printed parts which is fine but if u can do it while using the original metal stuff it will be stronger. but back then i was still new to not just 3d printing but 3d modeling so i wasn't able to make my own at the time so i went with one that was very similar just had to print everything and it only fit together cant mix or match these with my others. but now a year and a half later ive finally gotten to the point where i can make or edge files to my liking for the most part an decided to make all the parts from this mount https://www.thingiverse.com/thing:3020026 work with the flsun qq-s pros filament spool bracket. take the 2 screws out that holds the smaller arm on the spool holder, keep those screws they will be used to hold the new bearing roller bracket in place. now slide the holder mount over top of the bracket and the holes will line up once pushed all the way down. it may need some cleaning up of the edges to get it to fit but depends on how well ur printer does along with how well flsun did with making all the brackets the same dimensions. mine was really tight for my first one an i had to sand the corners to get it to go in but my second one for my other printer wasnts as bad. once its put all the way on if u printer v1 the original bolts will work for holding the bracket on but if u used v2 u can use the original bolts to hold the mount on but also use it to put pressure against the roller holder so it cant slide out of place. i actually drilled holes into mine after so the longer screws could hold it in place while locking it without pushing it out, i may add a v2 of the roller holder with the holes already modeled into the part. but once u get the screws in u can use a 608 bearing i think are most commonly used with skateboards but not sure i just know they worked great for little projects. but if u dont have any on hand or dont want to have to spend money on them u can print the plastic dummy 608 bearing an it will site in the roller holder an hold the roller like a bearing, if its snug u can sand the inside of the dummy bearing or the post on the roller an it will spin almost as smooth a freely as a real bearing. after that ur done. its ready to use. i hope this helps an i dont know who the orignal creator of these are, ive seen them made an uploaded by quite a few different ppl an they all look the same but are slight different in size from each other so i picked the filler mount cause it has alot of options to begin with an i just took there stuff an made it work with the factory stuff so all my printers have the same setup.

STEP
1:remove the small arm from the original spool holder.(keep screw, will re-use)

2:Put the spool holder mount over top of the old mount in place of the small arm previously removed. Part may need sanding for it to fit between the edges on the back side of the bracket. u can remove it to assemble most of it an will make it alot easier. just two more screws at the bottom of the mount to remove it.

3:once the spool holder mount is on the bracket an pushed all the way down go ahead an put the spool holder part into the holder mount just put on. now if u printed v1 of the holder mount the original screws will hold it on fine but if u printed v2 the screws will hold both the holder mount and spool holder in place. once u have the screws in locking everything in place if u removed it from the printer to assemble, go ahead an reattach it to the printer with the 2 screws u took out.

4: once u have everything attached take the spool or roller and a post an put in the end of the roller, theres 3 different sizes so depending on ur printers tolerances the middle size work for me, i was going for tight but didnt want to have to sand or press anything together so the middle size was tight but a few light taps and it went in. if u print stuff an its always on the tighter side when putting them together then u might want to go with the smallest one but i didnt personally try it myself.

5: now depending on if u have 608 bearing or not u will put the bearing or the plastic dummy on the posts on each end of the roller an then sit it into the spool holder.

6: just put ur filament on an load it an start your print, FIN.

Note: sorry for the poor instruction an confusing naming of the files ive made small changes with each one ive used so thats why theres a couple versions but printing the latest version is recommended cause the changes made are for adding more support not sizing changes. i do have one other change i want to do an will add it as soon as i do the change an it will be on the spool holder part so if its still v1 i haven't gotten around to making the changes.