Mega RAMPS Marlin gcode & TTL laser January 29, 2018 05:53PM |
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Re: Mega RAMPS Marlin gcode & TTL laser January 29, 2018 06:58PM |
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Re: Mega RAMPS Marlin gcode & TTL laser January 30, 2018 04:00AM |
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Re: Mega RAMPS Marlin gcode & TTL laser January 30, 2018 10:00AM |
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Re: Mega RAMPS Marlin gcode & TTL laser January 30, 2018 12:19PM |
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Re: Mega RAMPS Marlin gcode & TTL laser January 31, 2018 03:32PM |
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Re: Mega RAMPS Marlin gcode & TTL laser May 14, 2018 09:53PM |
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Re: Mega RAMPS Marlin gcode & TTL laser May 15, 2018 02:41AM |
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Re: Mega RAMPS Marlin gcode & TTL laser June 02, 2018 12:28PM |
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Re: Mega RAMPS Marlin gcode & TTL laser June 02, 2018 04:08PM |
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Re: Mega RAMPS Marlin gcode & TTL laser August 12, 2018 09:17AM |
Registered: 9 years ago Posts: 159 |
Quote
VDX
... hmmm ... it's as simple, as feeding the pin for the extruder STEP to the TTL-input pin of the laser driver ... eventually you have to add a "level changer" (e.g. a TTL line driver or transistor circuit), if the TTL input of the lser driver won't run with the 3,3V from an ArduinoDue ...
Re: Mega RAMPS Marlin gcode & TTL laser August 12, 2018 09:39AM |
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Re: Mega RAMPS Marlin gcode & TTL laser August 12, 2018 09:41AM |
Registered: 9 years ago Posts: 159 |
Quote
VDX
... I'm using a small Arduino (Arduino Pro Mini clone) as an "intelligent" controller in my laser modules or as driver-interface.
The input signals are e.g. the STEP pulses, meant for the extruder stepper and an analogue voltage 0V-5V, regulated either by the CNC-controller (e.g. 12Bit-DAC of the ArduinoDue, "up-shifted" from 0-3,3V to 0-5V) or set with a trimpot ... and a "laserON" signal, to define, if the pulses have to be converted to laser output ...
With startup (or a reset-pulse) this "intelligent" laser controller reads the analogue voltage and defines the pulse-length between 5 microseconds at 0V to 300 microseconds at +5V.
Then, with the input "laserON"=+5V, every detected pulse will create a laser pulse with the set length (5 to 300µs) ...
Re: Mega RAMPS Marlin gcode & TTL laser November 20, 2018 03:18PM |
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Re: Mega RAMPS Marlin gcode & TTL laser November 20, 2018 04:05PM |
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Re: Mega RAMPS Marlin gcode & TTL laser November 22, 2018 11:02AM |
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Re: Mega RAMPS Marlin gcode & TTL laser November 22, 2018 02:22PM |
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Re: Mega RAMPS Marlin gcode & TTL laser January 29, 2019 11:40AM |
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Re: Mega RAMPS Marlin gcode & TTL laser January 29, 2019 01:13PM |
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