add exact date of buying ctc i3 printer

input/projects/3d-printing/ctc-i3.md

 <!--% backToParent() %-->
 
 The CTC i3 Pro B is a very cheap chinese Prusa i3 clone.
-I bought it a couple of years ago for about 110 Euros.
+I bought it in November of 2017 for the surprisingly cheap price of 110€.
 The frame and motor mountings are made out of pieces of laser cut wood.
 Because of this, the frame flexes a lot, which is the main reason I would not recommend this machine today.
 Nonetheless, this is my main printer.

input/projects/3d-printing/fabrikator-mini.md

 
 <!--% backToParent() %-->
 
-I bought the [Fabrikator Mini V1.5 from HobbyKing](https://hobbyking.com/en_us/fabrikator-mini-3d-printer-transparent-eu-230v-v1-5.html) in about March 2016.
+I bought the [Fabrikator Mini V1.5 from HobbyKing](https://hobbyking.com/en_us/fabrikator-mini-3d-printer-transparent-eu-230v-v1-5.html) in March of 2016.
 So that's pretty much exactly three and a half years ago, at the time of this writing.
 I'm unbelievably happy with this printer and how it held up over the years.