Pronterface and sprinter work at 1000000baud

just an fyi sprinter and pronterface both talk at 1000000baud, just manually type it in pronterface, it will take!

modify your receive buffer char to 64 and your buffers to 2. see the difference. data now flows to sprinter faster than the buffer could process it,and the 2 buffer is to ensure that it all is in hardware, buffer processing is minimal because the main issue is the send and receive time of the usb delay. faster data can be sent with repsnapper that recognizes buffering.
also you can modify delay times to under 16ms in control panel system for usb serial port.


try it out!

YMMV...