V-Plotter hardware

[stretchyboy]

• http://homofaciens.de/technics-machines-v-plotter_en.htm
• http://www.open-electronics.org/how-to-make-an-opensource-vertical-plotter/
• http://polargraph.bigcartel.com/ especially the sprockets & beaded cord

Stepper Drivers

https://shop.pimoroni.com/products/adafruit-dc-stepper-motor-hat-for-raspberry-pi-mini-kit https://shop.pimoroni.com/products/pistep2-quad-stepper-motor-control-board-for-raspberry-pi

[stretchyboy]

• https://github.com/MarkJB/pi-zero-stepper-board

[stretchyboy]

Motor mount and cog thing to modify to fit on the lighting poles https://www.thingiverse.com/thing:1393164

[stretchyboy]

Lighting stand mount features

First, a 3/8-16 UNC thread (that's 3/8", 16 threads per inch). This is, fortunately, basically standardized in all such gear.

Second, a 5/8" stud, usually meant for clamping things to, or often attaching things via a socket with a screw on the side. This socket is often called a "receiver" or "receptor" — useful to know if you're searching.

Since the second connection type is less critical than matching threads, the precise size may vary — I've also often seem this described as a "16mm stud", which is very close to 5/8" but of course not identical. (And, yes, we're generally cavalier about mixing metric and imperial in photography — a so-called 1" sensor has a diagonal of 16mm, to pick another example.)

In many cases, the studs on light stands also are threaded on top. For example, here's the top of one of mine:

[stretchyboy]

Motors are http://www.zappautomation.co.uk/sy35st36-1004b-high-torque-hybrid-stepper-motors.html

[stretchyboy]

https://www.thingiverse.com/thing:569308