Difference between revisions of "Blog 2020"

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=2020-1-16 Thursday=
=2020-1-16 Thursday=
"There's no such thing as a hyper-lion"
* Andy made the laser cutting be good
* Andy made the laser cutting be good
* Garrett was playing with the LED light
* Garrett was playing with the LED light

Revision as of 00:11, 17 January 2020

What we have been doing at Little House

You can read about previous activity at What we did last year

2020-1-16 Thursday

"There's no such thing as a hyper-lion"

  • Andy made the laser cutting be good
  • Garrett was playing with the LED light
  • PeterH laser cut a railway building
  • Attendance tonight = 4

2020-1-14 Tuesday

  • PeterH continued modelling
  • Adam is modifying a Nerf gun
  • Jon and Andy spent all evening working on the laser cutter, removing the mirrors and taking more measurements.
  • Jamie experimented with an electronic timer, which will be part of his brewing controller
  • Garret brought a trap suitable for catching small haggis. It was interesting to analyse exactly how, or why, it works.
  • Garret also dissected a LED domestic light for his, and our, knowledge.
  • Hi to PaulB who benefitted from the sunshine in S.Africa over Christmas.
  • PaulE is developing short-range radio, and was looking at alternative types of track for another project
  • Attendance tonight = 10

2020-1-9 Thursday

  • Vish and new vistors Carmella and Yasmin were investigating plastic recycling via shredding and cooking
  • PeterH played with trains
  • Attendance tonight = 5

2020-1-7 Tuesday

  • PeterH glued a railway track
  • Andy and Jon worked on the laser cutter. After last week's cleanup, they were measuring laser power and investigating the state of the optics. ChrisR helped with temperature measurement.
  • PaulB looked in for a short while
  • Welcome to some new faces:
    • Neil came to meet us. He will be back
    • Adam would like to gain new skills. Arduino, maybe?
    • Jamie is planning a controller for brewing and is looking for advice on the electrical side of things
  • Gavin and Isobel came to use the laser cutter. As it was under maintenance they will come back another week.
  • Hi to MartinB as well.
  • Attendance tonight = 12

2020-1-1 Wednesday

  • Jon and Andy came in to do some tinkering with the laser cutter
    • modify a plastic crate so we could soak the honeycomb bed of the cutter in Zep.
    • removed the honeycomb bed of the cutter to soak
    • broke the 'quick release fitting that attaches the hose to the tap
    • made a shopping list of what else we needed in screwfix
    • realised that it was a Bank Holiday and screwfix was probably closed :(
    • texted IanB in the hope he might have one - he did - and he brought it round for us (along with a donated PC).
    • repeatedly pressure washed the honeycomb - not perfect, but much better.
    • cleaned, washed and vacuumed all the insides of the laser cutter case.
    • spent some time making measurements of the laser power using our'dohicky'.
    • spent some time aligning the laser tube to see if power could be improved - there is probably room for some improvement still, we seem to lose a lot of power at each 'bounce' in the optical path.
    • have concluded that a spare lens and some spare mirrors are worth having.
    • need to investigate cleaning techniques for the mirrors and lens.
  • Attendance today = 2