Micro-dot Solder Paste Dispenser for less than $2

On YouTube, I came across the following video demonstrating [a simple design for a micro-dot solder paste dispenser](https://www.youtube.com/watch?v=gL2xQ07Cfk8).

I have taken the great little concept and turned it into a design which can easily be 3D printed at home.

Besides the 3D printable parts, the design is only using relatively basic hardware. I expect the average tinkerer to already have much of this in stock. In case you are missing parts, they are very [cheaply to source](https://www.aliexpress.com). (Obviously you do not need a syringe which has been approved for medical use.)

The tool itself takes a little getting used to, but for the price it can be forgiven.

For detailed instructions, see below.

Parts:

* [1ml Syringes](https://www.aliexpress.com/wholesale?catId=0&SearchText=1ml%20syringe)
* [Springs](https://www.aliexpress.com/wholesale?catId=0&SearchText=springs) (I had one of these [Spring assortment boxes](https://www.aliexpress.com/wholesale?catId