clamp

attach phone holder from modular mounting system to modular mount

CLAMP part allow you to attach the holder for phone
ROT part allow you to rotate mount by 90 degrees

both parts come as STL, STEP and solid works source part (with all the operations, sketches etc.. so you can easily modify anything)

btw. as you can see on the pictures, I printed 2x required arms's for modular stand and used longer screws so that I get sturdier stand that can hold heavier gear.. the CLAMP and ROT both work ok with regular single arm modular stand..

p.s. new thingiverse 52$#%$&U@$ interface do not show sources properly so
* https://www.thingiverse.com/thing:2194278 (for the actual part that grabs phone)
* https://www.thingiverse.com/thing:2780973 (for the stand)