What have you already achieved and did you face any problems along the way?

Question: What have you already achieved and did you face any problems along the way?
- Keywords:
  achieve,
  problem
Asked by Star567 to Hummy, Lewis, James, Sandra on 5 Mar 2017. This question was also asked by Petar, Reality, Forzia, Lili033, 875frah47, Arujan.
- Lewis Wright answered on 5 Mar 2017:
  
  So far I have assembled and programmed a machine to do my experiments for me, so that there’s less chance of me making mistakes while making solar cells.
  Writing the code to control it took aagggggeessss, and loads of times I thought I had it perfect, only for it to not work. Sometimes you have a problem that just will not go away, no matter what you try. You just have to keep going, and you will be rewarded eventually – I have been rewarded with a beautifully working sprayer! (see my profile for photos)

Question: What have you already achieved and did you face any problems along the way?