Week 8 - Computer Controlled Machining

This week assignment was to make something big

Joint test

Software tools:123 make, VCarve Pro and SB3 control software

Hardware tools: Shopbot PRSalpha 120x60

First I made a simple joint test just to try things out, it worked ok but I accidentaly made a cut on the inside of the line but it still fitted together

smal scale table exsperement

I made a successful experiment with 123d make were I made a simple form of 3d object and then made 123d make turn into slices. That way I could make a table and a shelf in a very simple way.

I ended up on making a small scale circular table that I might want to make full scale for library computers. It worked out well and was a very fun experiment.

  • bor.3dmk
  • bord.pdf
  • docs/d8/hillan.3dmk
  • Making something big

    Looking around the lab we really need a better place for the milling bits. I decided to make a small standing table. The idea is that the workbench should always be clear.

    I wanted to try out v - carve built in cad features so I desided to draw the whole table there. I was very impressed by the tools and it is nice to have a cam tool were you can do a little bit of drawing too. I also like v - carve because it is visible and user friendly.

  • sbbord.dxf
  • Macining

    I did a special toolpath for drill so I could screw the screws in clear areas of the work.

    Cuting was pretty straight forward. I did not run in to any troubles.

    Setings

  • Makerial: 17mm plywood
  • spindle speed: 12.000 rpm.
  • Milling tool: 1/4 inch straight up bit.
  • Feed rate: 80mm/sec
  • Assembly

    I don't really know what this joint is called but I had seen it before and wanted to try it. It worked very well but was a bit thigh so I had use a lip balm to make it fit

    Some joints were a bit to tight and I had to sand them down.

    After I had assembled it I tested it out. It was very sturdy and could easily hold me without being wobbly.

    outcome

    The outcome was great. It is defenately a table that will be used and I might make more. The only flaw now is that the design is not parametric. I would also like to add shelves under the table for storage. The workbench is now clean and looks nice.

    the old workbench looking much better How to Sweep. By Tom Sachs - https://www.youtube.com/watch?v=Kt-VlZpz-8E