I agree. I've been asking for multigrid projector support for years.

ok thxs for reply i hope keen is going support multigrids i see alot of good stuff with rotors and pistons but they are not build by build and repair

Projectors still work fine for non-multgrid blueprints. Most of my blueprinted ship and rover builds are without rotors and/or pistons, so they're not a problem. One of my mining rovers, Blue Crab , has rotor-operated drill arms, but I have included the step-by-step process for building the subgrid projections (the process is simple and straightforward).

nice one but whe can use it in the projector multigrids are still not supported

That's certainly a way to do it. Reliability is relative. I've tested my configuration extensively with many different builds, both with the blueprint centered and with it offset from center. (My initial design used welders in every other position to reduce PCUs; it was not 100% reliable all the time, as is the configuration now.) Will my printer always produce a perfect print? I don't know. But thanks for the suggestion. Any player is free to implement your suggestion into this build.

This is a script to reduce PCU, as well as make printing more reliable. https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1912156094&searchtext=Rotor