TinyG
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synthetos
COOL PWM SDIR SPIN detailed description
hello i need detailed description of pin COOL, PWM, SDIR and SPIN there are any information at all at the page "Connecting TinyG" and i can't find anything useful. i have a spindle driver with input requirement of level 3.5-12V VPP, frequency 1K-5KHZ , duty cycle of 0% -93%. can i use it?
Coolant toggles with Gcodes M7, M8 and M9. See https://github.com/synthetos/TinyG/wiki/Gcode-Support SDIR toggles with Gcodes M3, M4 (direction) SPIN is toggle With M3/M4 spindle On/Off logic PWM is active based on settings - see https://dl.dropboxusercontent.com/u/50261731/Spindle%20Test%201.doc
thank you for your reply, i read and now i know how to control the outputs via M codes, but now the problem is how to connect the outputs! example for the coolant i have this pump (manualy driven actually) http://www.ebay.it/itm/3-5M-75W-3500L-H-Engraving-Machine-Cooling-Water-Pump-For-CNC-Spindle-Motor-/162212141310?hash=item25c498d8fe:g:H2AAAOSwmfhX4tUD this is a spindle coolant pump but i use it as coolant pump how i connect it to TinyG?
tinyG outputs are unbuffered 3V CMOS logic. Send an M3 command and SPIN lead will toggle to 3V from 0V and PWM will output a PWM pulse stream at selected frequency as defined by the calibration $p1* parameters. An M5 command will return SPIN to 0V, PWM to whatever PWM duty cycle is set by $p1pof.
You probably need some sort of logic to power on/off circuit to control your hardware. There are all sorts of interfaces available, depending on the load current required.
ok thank you again now is more clear! i surely need a little interface, no problem that's everyday work :) this can be closed but i suggest to put these infos on wiki pages thanks again