Writing machine demonstration

The end of the year is coming soon, and I have to do something to write an end to my 2017. When I think about writing a lot of letters during the New Year, there are ten thousand alpacas galloping in my heart. . . It's okay to print directly, but it always seems less sincere. Then make a substitute device to complete the troublesome and repetitive work for yourself
. Three-axis writing. . .
The height Z axis is not actually an axis. Use a servo to replace
the ZY horizontal axis with structural parts + stepper motor + lead screw + optical axis.

Just use the engraving machine when you get into the machine position.

For design drawings and material details, please see: http://en.eeworld.com/bbs/thread-591329-1-1.html

• Chapter 1：Writing machine demonstration (2 minutes and 15 seconds)