delta rod ends optimized for carbon arrow shaft

I am building a delta printer and I was looking for shafts to use and anything in the size Iwas looking for was either very expensive or too short. So I decided to go with standard carbon arrows it was 20$ for 12 31"arrows more than enough.

the rod end is designed for a slip fit they are slightly oversize. the bolts are m3 you need to print 12 of each.

the joints are not yet tested. I will soon and update

update: I tried a new carriage that is slightly narrower and tightened up the t