they just act as turrets instead of keeping their way.... i suggest adding FIXED prisms for these constructions, plus ncreasing the range of 2 beams merge
edit: somehow cant add picture of ship, it just says oops something went rong all the time
Grupdon i suggest adding FIXED prisms
You know you can lock their rotation? Just select them after the ship's construction, there should be a button to make them stay fixed.
Image uploading is broken right now, upload it to imgur and post a link here
