author
2CommentsIndiaJoined March 30th, 2017
I work on the aerodynamics and design of Ornithopters which involves mechanical design of gears, linkages, kinematic analysis and flight mechanics. I also design and build Fixed wing UAV, Multirotors.
  • Mini CNC Machine Arduino Based & Adafruit Driver Motor L293D V1 & 2*Mini Stepper CD/DVD Player #1

    Fixed the problem. It was happening because of the low pitch of the screw the value of x1 was exceeding the range of int. I Just changed it to long and its solved the problem but at a cost of higher memory.

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  • Mini CNC Machine Arduino Based & Adafruit Driver Motor L293D V1 & 2*Mini Stepper CD/DVD Player #1

    I made a bigger version using your code to make a large cnc router (40cmx30cm) and it is nicely printing small images that you shared. Unfortunately it is printing images within a 5cm x5cm zone only. I tried increasing the Xmax, Ymax beyond 50 but anything beyond 5 cm in printed at a different place. your cd rom lead screw has high pitch but my lead screw has 1.25 mm pitch. After calibration, I ended up at StepsPerMillimeterY=1250, StepsPerMillimeterX=650 I also checked the stepper motor example in adafruit library and it also draws line of 5 cm only (motor.step(4000, FORWARD, MICROSTEP); I tried with number larger than 4000. Is it a limitation of the hardware? Can you please help? I am a mechanical engineer but new to arduinio.

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  • Mini CNC Machine Arduino Based & Adafruit Driver Motor L293D V1 & 2*Mini Stepper CD/DVD Player #1

    I made a bigger version using your code to make a large cnc router (40cmx30cm) and it is nicely printing small images that you shared. Unfortunately it is printing images within a 5cm x5cm zone only. I tried increasing the Xmax, Ymax beyond 50 but anything beyond 5 cm in printed at a different place. your cd rom lead screw has high pitch but my lead screw has 1.25 mm pitch. After calibration, I ended up at StepsPerMillimeterY=1250, StepsPerMillimeterX=650 I also checked the stepper motor example in adafruit library and it also draws line of 5 cm only (motor.step(4000, FORWARD, MICROSTEP); I tried with number larger than 4000. Is it a limitation of the hardware? Can you please help? I am a mechanical engineer but new to arduinio.RJ175874566CN

    View Instructable »