Problem with Speed Control in Laser Scan mode
Posted: Mon Feb 14, 2011 7:03 am
I have a Morn 3050D which uses the DSP card for its control. I am using Corel Draw 12 as my driving program and have primarily operated it as a cutter using the Laser Cut settings.
Recently I've tried to output bitmaps using the Laser Scan mode and have uncovered a problem. At speed setting of 30mm/s and faster the head scans smoothly at the desired speed. Below 30mm/s the head speed varies between two rates. During white spaces in the bitmap the head speed is as set in the Laser Scan dialog. However, during black spaces the head speed increases to 30mm/s. Effectively, etching is limited to a minimum speed of 30mm/s.
I've verified this with a scope looking at pin 5 (PWM+) of the X drive output.
Any assistance in how to overcome this problem will be appreciated.
Recently I've tried to output bitmaps using the Laser Scan mode and have uncovered a problem. At speed setting of 30mm/s and faster the head scans smoothly at the desired speed. Below 30mm/s the head speed varies between two rates. During white spaces in the bitmap the head speed is as set in the Laser Scan dialog. However, during black spaces the head speed increases to 30mm/s. Effectively, etching is limited to a minimum speed of 30mm/s.
I've verified this with a scope looking at pin 5 (PWM+) of the X drive output.
Any assistance in how to overcome this problem will be appreciated.