Thingiverse is a universe of things. Download our files and build them with your lasercutter, 3D printer, or CNC. ... Creality Ender 2 Y-Axis Limit Switch Bracket May 06, 2016 · The server response was: 4.4.2 Message submission rate for this client has exceeded the configured limit. All the receive connectors on all servers are set for verbose logging. I have also restarted the transport services on all cas and mbx servers numerous times. I'm getting a Limit Error: (#613) Calls to this api have exceeded the rate limit. Currently I'm testing this by sending the same message several times to the same user (me); in a real world scenario, the same message would be sent to several different users of course.